instrumentation
TRANSCRIPT
InstrumentationYour autopilot system goes from fail operational to fail passive below alert height. What do you do?Correct answer : Continue to land.
You engage CWS, what happens when you let go of the control wheel after making a manoeuvre?Correct answer : The auto-pilot will hold the attitude that exists when the wheel is released.
With reference to Traffic Collision Avoidance Systems:Correct answer : RA's may be disregarded only when the pilot visually identifies the potentially conflicting traffic and decides that no deviation is necessary.
With reference to the flux valve of a remote indicating compass:Correct answer : the flux valve is fixed to the aircraft and so turns with the aircraft to measure the angle between the aircraft and the earth's magnetic field.
With an EICAS, how are the computers normally used to drive the displays?Correct answer : The left computer drives both displays.
Which of the following will not terminate an EICAS BIT?Correct answer : Applying the parking brake.
Which of the following statements is true?Correct answer : In PLAN mode, weather radar data is inhibited on the EHSI.
Which of the following statements is most correct when describing a turn co-ordinator?Correct answer : It responds to aircraft bank angle as well as turning rate.
Which of the following statements concerning TCAS is correct?Correct answer : TCAS 2 cannot provide information on non-SSR equipped intruders.
Which of the following is a preventative RA?Correct answer : Monitor vertical speed
Which of the following instruments require pitot and static pressure inputs?Correct answer : Airspeed indicator and machmeter.
Which of the following gyro instruments has one degree of freedom?Correct answer : turn indicator
Which of the following EHSI modes displays weather radar information?Correct answer : Expanded and Map modes.
Which of the following displays are part of the Electronic Flight Instrumentation System (from Boeing)?Correct answer : Electronic Attitude Director Indicator and Electronic Horizontal Situation Indicator.
Which mode, on which weather radar images are never displayed, is shown on the following ND.Correct answer : Plan mode.
Which mode is selected on the following Navigation Display (EHSI)?Correct answer : Full VOR mode.
Which mode is selected on the following Navigation Display (EHSI)?Correct answer : Expanded VOR mode.
Which is the correct input to TCAS 2?Correct answer : Mode 'S' transponder which co-ordinates avoidance manoeuvres.
Which instrument has a 2 deg rotation in the horizontal axis?Correct answer : artificial horizon
Which factors are controlled by the autothrottle system?Correct answer : EPR, MACH and IAS.
Which ECAM page is displayed on the following figure?Correct answer : The flight controls page.
Which colours are typically used on an EHSI?Correct answer : White, green, magenta, cyan, yellow and red.
Where very accurate temperature indication is required the indicator used will be:Correct answer : ratiometer.
Where is the earth rate wander, and the transport wander of a gyro equal to zero?Correct answer : Equator
Where is TCAS displayed?
Correct answer : All these solutions are possible.
Where in the aircraft should the FDR be fitted according to the JAA regulations?Correct answer : At the rear of the aircraft.
Where in the aircraft does JAR require the FDR to be fitted?Correct answer : At the back.
Where can the pilot look to see the computed reference thrust limit?Correct answer : Primary EICAS
Where can the pilot look to see the auto-throttle engaged mode?Correct answer : PFD
Where are the flight director Command Bars displayed?Correct answer : PFD
Where are the flight director and autopilot modes displayed on?Correct answer : On the PFD.
Where an alternate static source is fitted, use of this source usually leads to:Correct answer : an increase in position error.
When turning through 90 degrees at constant attitude and bank, a classic Artificial Horizon indicates:Correct answer : nose up and bank angle too low.
When turning through 180 degrees at constant attitude and bank, a classic Artificial Horizon indicates:Correct answer : nose up and correct angle of bank.
When the brightness level is selected on the control panel of an EFIS display, it is then:Correct answer : automatically controlled by light sensors which adjust the brightness on the CRT's.
When operating with the auto-pilot in ALT hold mode what happens if the Captain's barometric altimeter pressure setting is increased?Correct answer : Nothing.
When is an auto-land procedure complete?Correct answer : At the beginning of the ground roll
When flying level in the cruise the (1) holds height and the (2) holds the speed:Correct answer : (1) Auto-pilot, (2) Auto-throttle
When flying from low pressure to high pressure, the barometric error of an altimeter will cause the instrument to:Correct answer : underread the true altitude of the aircraft.
When entering a steep turn, an IVSI is likely to show:Correct answer : a slight climb.
When climbing at a constant mach number below the tropopause through an inversion:Correct answer : the CAS will decrease and the TAS will increase.
When carrying out a turn at the magnetic equator there will be:Correct answer : a tendency to underread turns due to liquid swirl.
When an intruder aircraft has no Altitude Reporting facility, i.e. Mode equipped with 'A' transponder only, TCAS can only give:Correct answer : TA only.
When an intruder aircraft has no Altitude Reporting facility (Mode A transponder only). TCAS 2 can give:Correct answer : TA only.
When altitude acquire engages:Correct answer : The auto-throttle controls IAS.
What will the altimeter of an aircraft on the aerodrome indicate with QNH set on the subscale?Correct answer : Airfield elevation.
What type of sensor is used to measure the output of a low pressure booster pump?Correct answer : Bellows.
What symbol is used to represent an RA on a TCAS PPI?Correct answer : Red square
What is the wavelength of an ILS signal?Correct answer : Centimetric
What is the target altitude displayed on the following PFD?Correct answer : 2200ft.
What is the Schuler period?Correct answer : 84 minutes.
What is the Schuler period?Correct answer : 84 minutes
What is the relationship between Alert Height and Decision Height for an automatic landing?Correct answer : Alert height is greater than decision height.
What is the most basic function of an auto-pilot?Correct answer : Wing leveller.
What is the minimum redundancy required to complete an automatic landing?Correct answer : Fail Passive.
What is the GPWS Mode 3 audible alert?Correct answer : 'DON'T SINK, DON'T SINK' continuously.
What is the essential design feature of any closed loop control system?Correct answer : Feedback.
What is the correct response to a TCAS RA?Correct answer : Smoothly and immediately follow the climb or descent commands.
What is the correct order of modes on an INS MCU?Correct answer : OFF, STANDBY, ALIGN, NAV
What is an FMC?Correct answer : A flight management computer.
What is a synchroscope used for?Correct answer : Allowing the pilot to adjust several engines to the same RPM.
What happens at 50 ft whilst carrying out an auto-landing?Correct answer : Glideslope disconnects and aircraft continues descent.
What EFIS ND mode is shown in the following picture?Correct answer : Plan mode.
What does this symbol represent on an EHSI in MAP MODE?Correct answer : Wind speed and direction.
What does the auto-pilot pitch / rotate around?Correct answer : Centre of gravity.
What does ECAM mean?Correct answer : Electronic centralised aircraft monitoring.
What distance does a radio altimeter measure?Correct answer : From aircraft to ground vertically down.
What corrective action is given by TCAS?Correct answer : Climb or descend.
What are the primary navigation inputs used by RNAV system?Correct answer : Nav Aids, INS, FMC.
What are the JAR OPS requirements for the CVR to start and stop recording?Correct answer : From the time when the aircraft is first able to move under its own power until it is no longer able to do so.
What are the auto-pilot minimum requirements in order to fly single pilot operations in IFR conditions or at night?Correct answer : Two axis auto-pilot with altitude hold and heading hold.
What are the advantages of an IRS compared to an INS?Correct answer : Reduced spin-up time and insensitivity to 'g'.
What are the advantages of a laser gyro compared to a conventional gyro?Correct answer : has a longer cycle life.
Weather Radar returns show areas of precipitation in the following colours:Correct answer : Green, Yellow, Red and Magenta.
VNAV and ALT hold are examples of:Correct answer : Outer loop input to the pitch channel.
Typical directional gyro indicator errors are:Correct answer : random wander, gimballing errors and apparent wander due to earth's rotation.
Two main indications used to evaluate a turbojet thrust are:Correct answer : engine rotational speed (N1) or EPR.
Turbulent flow around a pressure head will cause:Correct answer : approximately 95% of the position error.
Touch control steering:Correct answer : allows the pilot to control the aircraft in pitch and/or roll through the automatic control system without disconnecting the autopilot.
Total Air Temperature (TAT) is equal to:Correct answer : SAT + ram rise
Total Air Temp is always .... than Static Air Temp and the difference varies with ....Correct answer : warmer, TAS.
TO/GA is engaged:Correct answer : by the pilot pressing a button on or near the throttles.
To obtain heading information from a Gyro Stabilised platform, the gyros should have:Correct answer : 1 degree of freedom and a horizontal axis
To improve the horizontality of a compass, the magnet assembly is suspended from a point:Correct answer : above the centre of gravity.
The working principle of modern mass flow meters is to measure in their system:Correct answer : kinetic energy transmitted
The working principle of a capacitive fuel contents gauging system is based upon:Correct answer : changes in capacitance.
The wind direction symbol displayed all EHSI modes except PLAN mode is oriented:Correct answer : with respect to aircraft heading.
The weather radar display data can be shown on:Correct answer : the Captain's and First Officer's EHSI simultaneously.
The vertical speed indicator indications may be in error for some seconds after starting or finishing a climb or descent. The error is a result of:Correct answer : a combination of time lag and manoeuvre induced errors.
The vertical reference of a data generation unit is:Correct answer : vertical axis with 2 degree of freedom
The turning errors of the direct indicating compass, when relating to the northern hemisphere will:Correct answer : decrease when the aircraft turns towards East or West.
The torque motor of a slaved gyro compass:Correct answer : precesses the gyro in the horizontal plane.
The torque motor of a gyro stabilised magnetic compass:Correct answer : precesses the directional gyro.
The term 'toppling', when applied to gyros is:Correct answer : wander in the vertical plane.
The symbol shown sometimes appears on the EHSI display. It represents:Correct answer : the glide slope pointer and scale.
The symbol shown appears on the EHSI display. It represents:Correct answer : the FMC calculated top-of-descent.
The symbol shown appears on the EHSI display. It represents:Correct answer : heading orientation, current heading, heading reference and heading pointer.
The symbol shown appears in white on the EHSI display. It represents:Correct answer : the airplane.
The symbol shown appears in white on the EHSI display. It represents:Correct answer : the airplane symbol in Full NAV, Full ILS and Full VOR modes.
The symbol as shown on an EFIS display, represents:Correct answer : wind direction and speed.
The speed tape on an EADI is located:Correct answer : on the left hand side of the EADI.
The sources of error in a DGI are:
Correct answer : manufacture imperfections, earth rate and transport wander.
The rigidity of a gyro is improved by:Correct answer : increasing RPM and concentrating the mass on the periphery of the rotor.
The relative altitude of the TA intruder is .... and the TA intruder is ....Correct answer : 900ft above your airplane, climbing at a vertical speed of at least 500ft/min.
The purpose of the caging knob (Directional Gyro) is:Correct answer : to reset the heading and to prevent toppling.
The properties of a gyro are :Correct answer : precession and rigidity.
The principle that TCAS uses is:Correct answer : Transponders in the aircraft
The principle of the fuel-monitoring device giving the fuel burnt is:Correct answer : integration of instantaneous flow.
The next waypoint to be overflown is ... and the estimated ... is ...Correct answer : PAS, time of arrival, 9:08
The most significant parameters and the most important that express the thrust of a gas turbine engine are:Correct answer : N1and EPR
The mode of the EHSI ND shown below is:Correct answer : PLAN.
The minimum level of redundancy required to commence an autolanding is:Correct answer : fail operational.
The measure of a torque can be made by measuring:Correct answer : oil pressure at a fixed crown of an epicyclical reduction gear of the transmission box.
The maximum drift error sensed by an uncompensated DGI will be:Correct answer : 15 deg per hour
The main requirements of a direct reading magnetic compass are that it should be:Correct answer : aperiodic, horizontal, sensitive.
The main cause of error in a DRMC is:Correct answer : turning
The Machmeter consists of:Correct answer : an airspeed indicator with an altimeter capsule.
The interception of the localiser beam by the auto-pilot is:Correct answer : a mode using an interception verses radio deviation law.
The input to a basic stall warning system is:Correct answer : Angle of attack
The inner loop of an automatic flight system maintains aircraft stability by:Correct answer : aerodynamic feedback only.
The Inertial Strapdown Unit of an IRS is programmed with co-ordinates during alignment in order to:Correct answer : establish the trihedron with reference to the earth.
The heading reference used on the EHSI is:Correct answer : True or Magnetic.
The GPWS uses inputs from :Correct answer : the radio altimeter, the Air Data Computers, the Captain's ILS receiver, the landing gear position indicators and the flap position indicators.
The GPWS the alert/warning information is provided by a radio altimeter with:Correct answer : a downward transmitting beam whose dimensions are in the order of 30° and 60° in the fore/aft and the athwartship axes.
The gimbal ring of a turn co-ordinator is inclined at about 30° with respect to the aircraft's longitudinal axis in order to:Correct answer : make the gyro sensitive to banking of the aircraft as well as to turning.
The fundamental components of an autopilot control loop are:Correct answer : rate gyro, servomotor, error signal generator.
The fundamental components of an autopilot control loop are:Correct answer : rate gyro, servomotor and error signal generator.
The function of EICAS is to:Correct answer : show engine primary indications on the upper display and engine secondary indications on the lower display.
The function of auto-trim isCorrect answer : to relieve forces on the auto-pilot servomotor prior to hand over.
The forces which affect the balance ball in a turn and slip indicator are:Correct answer : weight and centrifugal force.
The following GPWS mode .... aural alert will be generated when passing the .... boundary.Correct answer : I, first
The following figure shows a:Correct answer : Radio Magnetic Indicator.
The following component is commonly known as the:Correct answer : MCP panel.
The following component is a:Correct answer : Multipurpose Control Display Unit.
The following component is a:Correct answer : ADIRS panel.
The following ARC mode ND display indicates a wind speed of:Correct answer : 58 kts.
The flux valve in a RIMCCorrect answer : is supplied with AC current.
The Flight Data Recorder actually starts running:Correct answer : before the a/c starts moving under its own power
The errors to which the machmeter is subject are:Correct answer : instrument error, position error.
The errors affecting the pressure altimeter are:Correct answer : instrument, position, manoeuvre induced, temperature, barometric and lag.
The electrical tacho-generator system uses:Correct answer : three phase AC whose frequency varies with the speed of the engine delivered to a three phase synchronous motor (squirrel cage) and drag cup.
The EICAS is usually in the .... mode during flight.Correct answer : operational
The EHSI mode in which the whole compass rose is not visible and upon which the relative bearing to the active waypoint is shown although the waypoints themselves are not is the:Correct answer : Expanded NAV mode.
The EFIS control panel allows selection of:Correct answer : Decision Height.
The ECAM display modes are:Correct answer : Manual, Flight Phase Related, Failure Related, Advisory.
The display modes for the Engine Indicating and Crew Alerting System are:Correct answer : operational, status and maintenance.
The directive force of the earth's magnetic field:Correct answer : is greatest at the magnetic equator.
The detector unit of a remote indicating compass is normally:Correct answer : fixed in the azimuth.
The critical height in a triplicated autoland system is:Correct answer : 45 ft gear height.
The corrections applied to the airspeed indicator compensating for compressibility effects are:Correct answer : always negative.
The control law in a fly-by-wire system is a relationship between:Correct answer : how the pilot's control demands are translated into control surface movements.
The computer of a north referenced Inertial Navigation System (INS) in flight, provides compensation for:Correct answer : earth rotation, transport wander, coriolis.
The capacitor gauge principle is based on:Correct answer : variation of capacitance of a capacitor with the nature of the dielectric.
The autothrottle maintains a specific value of thrust in terms of:Correct answer : EPR, N1, Mach and airspeed.
The auto-throttle is set to climb at a constant mach number. If the temperature does not change, what happens to the CAS?Correct answer : Decreases
The auto-pilot is in heading select mode, and the aircraft is flying on a heading of 270 deg. If you change heading to 360 deg, the flight director:Correct answer : roll command bar moves to right and centres when AFDS angle of bank to intercept has been achieved.
The auto-pilot is engaged with no modes selected. What is the auto-pilot providing:Correct answer : attitude hold with auto-trim.
The auto-pilot disconnects (or the auto-land is completed) at:Correct answer : roll out
The Autoland status is displayed:Correct answer : on the EADI when autoland is selected.
The autoland sequence is considered to be complete when:Correct answer : the autopilot is manually disengaged by the pilot.
The Altitude Alert system alerts the pilot:Correct answer : when deviating from the selected altitude.
The Altitude Alert system :Correct answer : may alert by visual signals when approaching the selected altitude.
The advantage of having the VSI dial presentation in logarithmic spacing rather than in linear spacing is that:Correct answer : at low rates of climb or descent the pointer movement is much larger and therefore easier to read.
The advantage of a ratiometer is:Correct answer : does not suffer from errors due to variations of supply voltage.
The actual track of the aircraft is:Correct answer : 108 degrees.
TCAS 2 when fitted with mode C transponder may give:Correct answer : TA and RA in vertical plane.
Regarding the RA on the following EADI, the intruder is:Correct answer : 300 feet above your aircraft and descending at 500ft/min or more.
Real wander of a gyro can be caused by:Correct answer : asymmetrical friction at the spinning axis.
Radio altitude is shown on the EADI and changes from a digital display to a circular scale:Correct answer : below 1000 ft AGL.
Position error :Correct answer : may be reduced by the fitting of static vents.
Pitot static inputs for EFIS instrumentation are transmitted to the instruments via:Correct answer : the air data computer.
Permissible limits of accuracy of the VSI are ... when ... within a temperature range of ... and ... outside this range.Correct answer : ± 200 fpm, on the ground, -20°C to +50°C, ± 300 fpm.
'Other traffic' which is assessed as not being a threat will be indicated by a TCAS system as:Correct answer : A hollow cyan diamond.
Operating range of the GPWS is:Correct answer : 50' to 2450'.
On which instrument are the flight director bars normally present?Correct answer : ADI
On the following Rose mode ND display, the selected VOR course is:Correct answer : 115 degrees.
On the following ND display, the .... is indicated by an amber circle.Correct answer : TA intruder
On the following ND display, the .... is indicated by a white filled diamond.Correct answer : proximate intruder
On the following ND display, the .... is indicated by a white empty diamond.Correct answer : other intruder
On the following ND display, the .... is indicated by a red square.Correct answer : RA intruder
On the FMA, engaged flight autoflight modes are displayed in ...Correct answer : green.
On the FMA, armed modes are displayed in ....Correct answer : white.
On the Airbus ECAM system, what information is displayed?Correct answer : Engine parameters on the upper ECAM display, and system/status information on the lower ECAM display.
On receipt of a TCAS RA your action is to:Correct answer : initiate the required manoeuvre immediately.
On an EICAS display what does the yellow arc on the temperature gauge signify?Correct answer : Exceptional operating range.
On an EHSI display, wind velocity can be displayed in which of the following modes?Correct answer : Map, Expanded ILS, Full ILS and Full VOR.
On a turn and slip indicator, needle to the left and ball to the right indicates:Correct answer : turn to the left, not enough bank.
On a modern twin spool turbofan, the main handling parameter is:Correct answer : the rotational speed of the low-pressure compressor.
LOC ARMED' lights up on the annunciator, this means:Correct answer : localiser armed and awaiting capture.
Inside an artificial horizon:Correct answer : the inner ring is pivoted laterally inside the outer ring and the outer ring is pivoted longitudinally inside the case.
Inputs to the stall warning system of an airliner are:Correct answer : angle of attack, IAS and flap/slat position.
In which of the following modes would an EHSI be oriented to True North rather than aircraft heading?Correct answer : Plan mode.
In which of the following EHSI modes are weather radar returns not available?Correct answer : Plan mode and any full rose mode.
In which of the following EFIS modes can weather information be displayed on the EHSI?Correct answer : In MAP, extended VOR and extended ILS mode.
In which of the autopilot control loops would manometric data be introduced?Correct answer : In the outer control loop.
In which modes can the autopilot intercept the localizer?Correct answer : HDG SEL, CWS R, LNAV.
In the PLAN mode, the EFIS EHSI display shows:Correct answer : desired track and waypoints oriented to True North.
In the IVSI, lag error :Correct answer : is virtually eliminated by using a special dashpot accelerometer assembly.
In the event of total generator loss on an EFIS equipped B737 airplane:Correct answer : the first officer's EFIS becomes inoperative.
In the event inaccurate radio updating is exercised, what effect will this have on the FMS?Correct answer : this may cause the FMS to deviate from the desired track.
In the displayed weather modes, the intensity of returns in ascending order of intensity are:Correct answer : green, yellow, red and magenta.
In PLAN mode:Correct answer : the weather radar display data is inhibited.
In PLAN mode, the active route data on an EHSI is oriented to ...Correct answer : true north.
In conditions of clear air turbulence (CAT):Correct answer : the IVSI is more sensitive.
In automatic flight, automatic trim control is usually provided around the following airplane axes:Correct answer : pitch only.
In autoland at 1000 feet A.G.L. with two autopilots engaged:Correct answer : the engaged roll made would be LOCALISER.
In autoflight, a system which allows aircraft control without disengagement of the autopilot servomotors is:Correct answer : control wheel steering.
In an EICAS system, if both displays fail then the following information is displayed on the standby engine indicator:Correct answer : N1, EGT, and N2
In an EFIS aircraft equipped with two simbol generators, if the First Officers symbol generator should fail:Correct answer : both his EFIS displays are being generated from the No. 1 (Captain's) symbol generator if the EFIS transfer switch is placed in the 'BOTH ON 1' position.
In an ECAM system if a caution message appears the system will:Correct answer : display a diagrammatic view of the affected system.
In an auto pilot system, the purpose of the inner loop is ... and the purpose of the outer loop is ...Correct answer : control, stabilisation.
In addition to attitude and autoflight modes, what information is also typically displayed on an EADI?Correct answer : Speed, Altitude, ILS localiser and glide slope information, and sometimes also heading information.
In a turn at constant angle of bank, the rate of turn is:Correct answer : independent of weight and inversely proportional a to TAS.
In a turn and slip indicator, the gyro is spinning at a greater speed than normal. What will the effect be on the indicated rate of turn?Correct answer : It will overread.
In a standby direct reading compass there is:Correct answer : a circular magnet or pair of bar magnets pendulously mounted.
In a standby compass the magnet system is immersed in a transparent liquid. The purpose of this liquid is to:Correct answer : increase sensitivity, increase aperiodicity.
In a slightly banked turn, the turn needle will indicate:Correct answer : rate of yaw.
In a right turn while taxiing, the correct indications on a Turn & Slip Indicator are:Correct answer : Needle right, ball left.
In a remote indicating compass, the rotor of the slaved gyro is automatically prevented from wandering in the vertical plane by means of:Correct answer : a levelling switch and torque motor.
In a remote indicating compass, direction sensing is achieved by means of:Correct answer : detection of the earth's magnetic flux and uses the direction and intensity of the flux density, measured in a magnetic bar to indicate direction.
In a left turn while taxiing, the correct indications are:Correct answer : Needle left, ball right.
In a gyro magnetic compass, where does the torque motor get its information from?Correct answer : amplifier
In a Gyro magnetic Compass the flux gate transmits information to the:Correct answer : error detector
In a DGI what error is caused by the gyro movement relative to the earth?Correct answer : transport Wander
In a closed loop system a device in which a small input operates a large output in a strictly proportional manner is called:Correct answer : servomechanism.
If you have selected a heading of 180 degrees and are flying aircraft on heading of 160 degrees to intercept the correct course, the ADI vertical bar will be central:Correct answer : when flying correct attitude to intercept desired heading.
If the static vent becomes blocked during climb:Correct answer : the VSI will return to zero.
If the static line to the ASI becomes blocked during a climb, the ASI reading will:Correct answer : progressively underread.
If the pitot line to an ASI becomes totally blocked during a climb, the ASI reading will:
Correct answer : progressively increase.
If the needle and the ball of a Turn & Slip indicator both show right, what does it indicate:Correct answer : turn to right & too much bank
If the intake probe of an EPR system becomes blocked with ice this will cause the EPR gauge to:Correct answer : over-read during take off.
If the auto-pilot is selected to VOR mode, what happens if the aircraft flies over the cone of confusion?Correct answer : Temporarily follows current heading until exiting the cone of confusion.
If only a single A/P is used to climb, cruise and approach; following a failure of an inner loop component:Correct answer : it is fail safe and will disconnect.
If one probe of a multi-sensor T.G.T. system failed , the reading would:Correct answer : be practically unaffected
If both displays of an EICAS system fail, what information will be displayed on the standby engine indicator?Correct answer : N1,EPR, EGT
If an automatic flight control system is fitted with control wheel steering (CWS):Correct answer : manoeuvring commands may be input by applying normal forces to the control yoke without first disengaging the autopilot.
If an aircraft, fitted with a DRMC, takes off on a westerly heading, in the northern hemisphere, the DRMC will indicate:Correct answer : a turn to the north
How does an autopilot control IAS when in IAS HOLD?Correct answer : By engaging the autothrottles in speed mode.
How can a pilot determine if an autopilot is establishing on the localiser during an ILS approach?Correct answer : It is shown on the Flight Mode Annunciator.
GPWS mode three gives waming of:Correct answer : height loss after take-off/missed approach.
GPWS Mode One gives warning of:Correct answer : excessive descent rate.
GPWS is active between the following heights:Correct answer : 50 ft & 2450 ft
Gimballing error:Correct answer : will disappear after a turn is completed.
For an autoland system to meet fail passive criteria it must:Correct answer : withstand a system failure without excessive deviations from the intended flight path.
For a position in the southern hemisphere, the effect of acceleration errors are greatest on headings:Correct answer : 090°(C) and 270°(C).
For a modern aircraft, which of the following modes of automatic flight cannot be engaged at the same time?Correct answer : HDG SEL and LNAV.
Failure of a single autoland channel in a triplicated autoland system results in a redundancy status of:Correct answer : fail soft.
Errors affecting an air driven artificial horizon during take-off run are:Correct answer : incorrect nose-up attitude and right wing low.
EFIS command information is displayed in:Correct answer : magenta.
During the take-off run , the effect of increasing airspeed is to cause the EPR indication to :Correct answer : decrease.
During the take off ground run does auto-throttle hold:Correct answer : N1
During autoland the caption LAND 2 is displayed. The system is:Correct answer : fail passive.
During an automatic landing (B737), the autothrottle begins retarding thrust at:Correct answer : approximately 27 ft RA..
During a sustained turn .... the nearer magnetic pole, the effect of liquid swirl will .... compass turning error.Correct answer : towards; increase.
During a missed approach and go-around procedure the change of aircraft attitude plus raising of the landing gear and changing of flap settings can cause short term unpredictable errors in certain instruments. The instruments most likely to be affected in this case are:Correct answer : the vertical speed indicator, airspeed indicator and altimeter.
During a fully automatic landing, the auto-pilot:Correct answer : and the auto-throttle control the approach at least until the touch down.
During a CAT2 approach, what is providing the height information to the auto-pilot?Correct answer : Radio Altimeter
Decision height is displayed on the:Correct answer : EADI, and below 1000 ft is shown as a circular scale which is erased anti-clockwise as the aircraft descends.
Decision height is ...Correct answer : displayed on the EADI, and set by the pilot using the EFIS control panel.
Cylinder head temperature measurement works on the principle of:Correct answer : thermocouple.
Cruising at FL390, M.84 is found to give a TAS of 499kt. The ISA deviation at this level will be:Correct answer : +17
Converted into degrees Celsius -40°F is:Correct answer : - 40°C.
Command information is displayed in ... on the EHSI.Correct answer : magenta.
Change of temperature as an aircraft climbs or descends:Correct answer : is compensated at the metering unit by means of a capillary and orifice.
Cautionary information on an EHSI is displayed in:Correct answer : yellow/amber.
CAS is IAS corrected for :Correct answer : position error.
Below which altitude the radio altitude indication on an EADI appears within the circular scale as a digital readout?Correct answer : Below 1,000ft.
Because the VSI measures rates of change of static pressure and not actual values of static pressure, position error:Correct answer : only causes errors in the VSI during the take-off run.
Auto-trim is fitted to an autopilot:Correct answer : to prevent snatching on disengaging A/P.
Auto-trim is an auto-pilot function in:Correct answer : Pitch only
Auto-throttle engaged mode can be checked by the pilot, using:Correct answer : primary flight display.
Autopilot corrections affecting pitch attitude are carried out by:Correct answer : autotrim and elevators.
Automatic flight control systems may be capable of controlling the aircraft flight in:Correct answer : azimuth, elevation and velocity.
Auto-land 'flare' is initiated at:Correct answer : 50 ft
Auto trim is functional:Correct answer : in the pitch channel only with the autopilot engaged.
At what height does the DH, on the EADI display, starts flashing yellow?Correct answer : On reaching DH.
At what angle does the flight director intercept a VOR radial?Correct answer : 20 degrees
At 50 feet agl during an auto-land, what happens to the glideslope signal?Correct answer : is disconnected.
Apparent wander of a gyro is caused by:Correct answer : rotation of the earth.
An RPM gauge has a red line at the upper end of the green arc, in the middle of the green arc is a smaller red arc. What is the significance of this smaller red arc?Correct answer : It indicates an RPM that must not be used continuously because of the increased vibration level from the engine/propeller.
An IRS is aligned in order to:Correct answer : calculate the computed trihedron with respect to the earth.
An FDR fitted to an aircraft of over 5700kgs after Apr 98 must record for:Correct answer : 25 hours
An FDR fitted to an aircraft of over 5700 kg after the 1st of April 1998 must record and store data during:Correct answer : at least the last 25 hours.
An EFIS installation on a B737 consists of:Correct answer : four screens and three symbol generators.
An auto-pilot:Correct answer : is an auto-stabilisation system around the centre of gravity.
An autopilot:Correct answer : is an auto-stabilisation system.
An autopilot:Correct answer : continually trims the aircraft to fly 'hands off' when engaged.
An autopilot which will suffer a loss of autoland capability after a single failure but which will not diverge from its intended flight path is known as .... If it can sustain a failure without loss of autoland capability, it is known as ....Correct answer : fail passive, fail operational.
An auto-pilot system whereby if one A/P fails cannot carry out an auto-land is called fail ....Correct answer : passive.
An autopilot suffers a failure which leaves the airplane trimmed and maintaining its original flight path although the autopilot is no longer engaged. The original status of the autopilot before the failure was:Correct answer : fail passive.
An autopilot is in ALT HOLD mode. What will happen if slight pressure is applied to the control column, assuming that the autopilot remains engaged?Correct answer : The autopilot will trim the aircraft nose up.
An auto-pilot capable of altitude hold and heading hold is a minimum requirement for:Correct answer : Single pilot operation under IFR and at night.
An automatic flight system which can safely continue with an automatic landing after a system failure:Correct answer : is a fail operational system.
An automatic flight system which can safely continue with an automatic landing after a system failure is a:Correct answer : fail operational system.
An automatic flight control system:Correct answer : applies flight data to the autopilot system.
An auto-land system which can continue to automatically land the aircraft after a single failure is called:Correct answer : Fail active
An artificial horizon has:Correct answer : 2 degree of freedom and a vertical axis.
An aircraft turns from south-west to south-east when situated at 45 N, what heading should you roll out on if using a DRMC?Correct answer : 115°
An aircraft that weights more than 5,700 kg and was registered after 1 April 1998, the FDR and CVR must record respectively:Correct answer : 25 hr. and 2 hr.
An aircraft taking off from an airfield with QNH set on the altimeter has both static vents blocked by ice. As the aircraft climbs away the altimeter will:Correct answer : indicate the airfield elevation.
An aircraft maintaining a constant CAS and altitude is flying from a cold airmass into warmer air. The effect of the change of temperature on the speed will be:Correct answer : TAS will increase.
An aircraft is travelling at 120 kts, what angle of bank would be required for a rate 1(one) turn:Correct answer : 18 deg
An aircraft is taking of on a runway heading 045 deg, in still air, with a compass having 0 deg deviation. The runway is on an agonic line. What will the compass read if you are in the northern hemisphere?
Correct answer : compass moves to less than 045°
An aircraft is flying a true track of 360 degrees from 50 south to 50 north. What is the average apparent wander rate:Correct answer : 0 deg per hour
An aircraft is fitted with a direct reading magnetic compass. Upon landing in a northerly direction the compass will indicate:Correct answer : no change.
An aircraft in the southern hemisphere is turning from a heading of 045°(C) to 315°(C) using a DGI. At the end of the turn the compass will read .... than 315° and liquid swirl will .... this effect.Correct answer : less, decrease.
An aircraft has yaw damping induced in its auto-stabilisation system. An essential requirement of such a system is:Correct answer : INS inputs to the CADC.
An aircraft has yaw damping included in its auto-stabilisation system. An essential requirement of such a system is:Correct answer : a three axis autopilot system.
An aircraft has a compensated capacitance fuel contents gauging system and is refuelled so that the total fuel contents are 76000kg at a temperature of 18 degrees C and an S.G. of 0.81. Whilst the aircraft is parked the temperature increases to 26 degree. Total fuel contents:Correct answer : remained the same
An advisory message on the EICAS system screen would be:Correct answer : displayed in amber, normally on the upper screen, indented one space to the right.
Among these instruments, which one uses aneroid capsules?Correct answer : air intake pressure sensor.
Aircraft electronic display systems normally incorporate:Correct answer : automatic CRT brightness control.
Aircraft Central Air Data Computers (CADC) transmit data for:Correct answer : airspeed, altitude and Mach No.
Aircraft above a certain capacity must carry a crash axe, it is provided to:Correct answer : enable access behind panels and soundproofing to aid fire fighting.
After localizer and glide slope capture, how can the APP mode still be disengaged?Correct answer : All answers are correct.
According to the readings on the following PFD, the actual flight level is:Correct answer : FL80.
According to JAR OPS when must the CVR on a 50 seat turbo prop a/c begin recording?Correct answer : From before the a/c is capable of moving under its own power to after the a/c is no longer capable of moving under its own power.
A yaw damper:Correct answer : can be used in manual or automatic flight.
A yaw damper indicator will indicate to the pilot:Correct answer : yaw damper movement of rudder position.
A volumetric fuel flow meter is different to a mass flow meter because the mass flow meter compensates for:Correct answer : density
A vibrator may be fitted into an altimeter to overcome:Correct answer : hysterysis.
A vibration meter measures:Correct answer : amplitude at a given frequency.
A stall warning system fitted to a large aircraft will always include:Correct answer : Various inputs including landing gear micro switch, a warning module and an aural warning.
A single axis autopilot system:Correct answer : provides control about the roll axis.
A remote reading thermometer depends upon .... to indicate changes in temperature.Correct answer : change of electrical resistance with temperature.
A radio altimeter is:Correct answer : aircraft based and measures true height.
A pressure head is subject to the following errors:Correct answer : position and manoeuvre induced errors.
A milli-voltmeter measuring electromotive force between a hot and a cold junction of a thermocouple can be graduated to read temperature if:Correct answer : the cold junction is maintained at a constant temperature.
A mach trimming system:Correct answer : is only operational at high subsonic speeds, whether or not the autopilot is engaged.
A gravity erector system corrects errors on a:Correct answer : artificial horizon
A GPWS system requires:Correct answer : Aural signals which may be supplemented by visual signals
A direct reading aircraft thermometer usually consists of a bimetallic element protruding into the airstream. Movement of the pointer over the temperature scale will depend on :Correct answer : different coefficients of expansion of the two metals.
A DGI has:Correct answer : two degrees of freedom & a horizontal spin axis
A cylinder head temperature measuring system in a piston engine has a sensor:Correct answer : One in the hottest running cylinder.
A compass swing is used to:Correct answer : align compass north with magnetic north.
A bounded error in an INS system:Correct answer : will result in all of the above being correct.
A 2 axis gyro measuring vertical changes will have:Correct answer : two degrees of freedom vertical axis.
You have just taken off in a fast aircraft fitted with a vacuum operated attitude indicator. While climbing straight ahead - still accelerating - the instrument may for a short while indicateCorrect answer : a climbing turn to the right
You are departing an aerodrome (600 ft AMSL, QNH 1012 hPa) and proceed to another airfield (150 ft AMSL) with the same QNH. After landing, which barometric setting on the altimeter makes it again indicate 600 ft?Correct answer : 1027.
Without readjusting the barometric setting of the Altimeter, it will under-read when:Correct answer : flying from a low pressure area into a high pressure area.
Within a temperature range of +50° and -20° C the VSI is accurate to within limits of:Correct answer : +/- 200 ft/min.
With a pitot probe blocked due to ice build up, the aircraft airspeed indicator will indicate in descent a :Correct answer : decreasing speed.
With a constant weight, irrespective of the airfield altitude, an aircraft always takes off at the same :Correct answer : calibrated airspeed.
Why do some gyro instruments topple when the aircraft is placed in an extreme attitude?Correct answer : because the gimbals reach their limiting stops
While inertial platform system is operating on board an aircraft, it is necessary to use a device with the following characteristics, in order to keep the vertical line with a pendulous system:Correct answer : with damping and a period of about 84 minutes.
While flying, a red flag labelled "HDG" appears in the indicator (HSI) of a Slaved Gyro Compass System. This indicates that:Correct answer : The flux valve is not supplying reliable information to the compass system.
While accelerating on take-off, what would be the expected indications on an electrically driven Attitude Indicator?Correct answer : a climbing turn to the left
Which statement is true ?Correct answer : None of the above.
Which statement is correct for the Vertical Speed Indicator (VSI) during a climb :Correct answer : The pressure inside the capsule drops faster than the pressure inside the case.
Which one of the following statements is true with regard to the operation of a Mach trim system :Correct answer : It only operates above a pre-determined Mach number.
Which of these statements is true?Correct answer : The probes used for SAT measurements have a recovery factor of 0.75 to 0.90, while the probes used for TAT measurements have a recovery factor of around 1.00.
Which instrument does not connect to the static system?Correct answer : Vacuum gauge.
When, in flight, the needle of a needle-and-ball indicator is on the right and the ball on the left, the aircraft is :Correct answer : turning right with not enough bank
When, in flight, the needle of a needle-and-ball indicator is on the left and the ball on the right, the aircraft is:Correct answer : turning left with not enough bank
When, in flight, the needle and ball of a needle-and-ball indicator are on the right, the aircraft is :Correct answer : turning right with too much bank
When, in flight, the needle and ball of a needle-and-ball indicator are on the left, the aircraft is:Correct answer : turning left with too much bank
When using the autopilot, the function of the pitch channel automatic trim is to: 1- cancel the hinge moment of the elevator 2- ease as much as possible the load of the servo-actuator 3- restore to the pilot a correctly trimmed airplane during the autopilot disengagement The combination regrouping all the correct statements is:Correct answer : 1, 2 and 3.
When turning onto a northerly heading the rose of a magnetic compass tends to "undershoot;" when turning onto a southerly heading it tends to "overshoot": 1)these compass indications are less reliable in the northern hemisphere than in the southern hemisphere. 2)these compass oscillations following a lateral gust are not identical if the aircraft is heading north or south. 3) this behaviour is due to the mechanical construction of the compass. 4) this behaviour is a symptom of a badly swung compass. The correct statements are :Correct answer : 2 and 3.
When the OAT is +25°C, the deviation from standard temperature for aerodynamic computations is:Correct answer : +10° C
When the intruding aircraft is equipped with a transponder without altitude reporting capability, the TCAS (Traffic Collision Avoidance System) issues a :Correct answer : "traffic advisory" only.
When the intruding aircraft is equipped with a serviceable mode C transponder, the TCAS II (Traffic Collision Avoidance System) generates a :Correct answer : "traffic advisory" and vertical "resolution advisory".
When the barometric subscale of the altimeter is adjusted to 1013.2 hPa, what type of altitude is being measured?Correct answer : Pressure altitude.
When the auto-pilot is engaged; the role of the automatic trim is to:Correct answer : relieve the A.P. servo motor and return the aircraft in-trim at A.P. disconnect
When the altitude acquisition mode is engaged on a jet transport airplane equipped with autopilot (AP) and auto-throttle (ATS) systems the:Correct answer : indicated airspeed (IAS) is maintained constant by the autopilot by means of elevator.
When the altimeter indicated 0 (zero) ft when the aircraft was parked for the night, and 1.000 ft the following morning, this shows that:Correct answer : the barometric pressure has decreased by approx. 33 hPa.
When the AC generators are connected in parallel, the reactive loads are balanced by means of the:Correct answer : energizing current.
When side-slipping, one of the instruments below will give an incorrect indication:Correct answer : Airspeed Indicator.
When operating two AC generators unparalleled, the phase relationship of each generator:Correct answer : is unimportant.
When only one autopilot is used for climbing, cruising and approach, the system is considered:Correct answer : "fail passive" or without failure effect but with disconnection.
When flying with an indicated altitude of 3000 ft into a low pressure area, the actual altitude:Correct answer : will decrease.
When flying from a sector of warm air into one of colder air, the altimeter will :Correct answer : overread.
When descending through an isothermal layer at a constant Calibrated Airspeed (CAS), the True Airspeed (TAS) will:Correct answer : decrease
When compared with the volumetric fuel flowmeter, the mass fuel flowmeter takes into account the fuel :Correct answer : density.
When climbing at a constant Mach number below the tropopause, in ISA conditions, the Calibrated Airspeed (CAS) will:Correct answer : decrease
When carrying out battery condition check using the aeroplan's voltmeter :Correct answer : a load should be applied to the battery in order to give a better indication of condition.
When being engaged, and without selecting a particular mode, an automatic pilot enables :Correct answer : aeroplane stabilisation with attitude hold or maintaining vertical speed and possibly automatic trim.
When an LF radio wave passes over the earth's surface it:Correct answer : slows down and is attenuated.
When an automatic landing is interrupted by a go-around : 1- the autothrottle reacts immediately upon the pilot action on the TO/GA (Take-off/Go-around) switch in order to recover the maximum thrust 2- the autopilot monitors the climb and the rotation of the airplane 3- the autopilot retracts the landing gear and reduces the flap deflection in order to reduce the drag 4- the pilot performs the climb and the rotation of the airplane 5- the pilot retracts the landing gear and reduces the flap deflection in order to reduce the drag The combination regrouping all the correct statements is:Correct answer : 1, 2 and 5.
When an aircraft, operating in the VOR coupled mode, approaches the "cone of confusion" over a VOR station, the roll channel of the autopilot :Correct answer : temporarily switches over to the heading mode.
When an aircraft has turned 90 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon :Correct answer : too much nose-up and bank too low
When an aircraft has turned 360 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon :Correct answer : attitude and bank correct
When an aircraft has turned 270 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon:Correct answer : too much nose up and bank to high.
When an aircraft has turned 270 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon :Correct answer : too much nose-up and bank too high.
When AC generators are operated in parallel, they must be of the same:Correct answer : voltage and frequency.
When a persistent top excitation limit fault on an AC generator connected to the mains with another AC generator, the overexcitation protection device opens:Correct answer : the exciter breaker, the generator breaker and the tie breaker.
When a persistent overexcitation fault is detected on only one AC generator, the protection device opens the :Correct answer : exciter breaker and generator breaker.
What should be the indication on the magnetic compass when rolling into a standard rate turn to the right from a south heading in the Northern Hemisphere?Correct answer : The compass will indicate a turn to the right, but at a faster rate than is actually occurring.
What percentages of the headwind and tailwind components are taken into account when calculating the take-off field length required?Correct answer : 50% headwind and 150% tailwind.
What is the significance of the yellow arc in an airspeed indicator?Correct answer : Structural warning range.
What is the main cause of precession?Correct answer : Bearing friction.
What is the Mach number?Correct answer : It is the ratio of the aircraft's true airspeed to the local speed of sound of the air in which the aircraft is moving.
What is the best way to test the charge level of a lead acid battery ?Correct answer : By checking the specific gravity of the elctrolyte.
What is known as the "Schuler Period" has a length ofCorrect answer : 84.4 minutes
What is an operational difference between the turn coordinator and the turn and slip indicator?Correct answer : the turn coordinator indicates roll rate, rate of turn, and co-ordination; the turn and slip indicator indicates rate of turn and co-ordination
What indications should you get from the turn-and-slip indicator during taxi?Correct answer : the ball moves freely opposite the turn, and the needle deflects in the direction of the turn
What does a vertical speed indicator actually measure?
Correct answer : The rate of pressure change.
What corrections must be applied to indicated airspeed to produce true airspeed?Correct answer : Correction for altitude and temperature.
What angle of bank should you adopt on the attitude indicator for a standard rate (rate 1) turn while flying at an IAS of 130 Kt?Correct answer : 20°
We are maintaining a constant flight level. That means:Correct answer : the outside air pressure is constant.
VNO is the maximum speed :Correct answer : not to be exceeded except in still air and with caution.
VNE is the maximum speed :Correct answer : which must never be exceeded
VLO is the maximum :Correct answer : speed at which the landing gear can be operated with full safety.
VLE is the maximum:Correct answer : flight speed with the landing gear down.
VLE is the maximum :Correct answer : flight speed with landing gear down
VFE is the maximum speed :Correct answer : with the flaps extended in a given position.
Variation is defined as the angle between:Correct answer : TN and MN.
Usually, in conductive materialsCorrect answer : the resistance increases with increasing temperature.
Under normal operating conditions, when an aircraft is in a banked turn, the rate-of-turn indicator is a valuable gyroscopic flight control instrument ; when it is associated with an attitude indicator it indicates : 1. the angular velocity of the aircraft about the yaw axis 2. The bank of the aircraft 3. The direction of the aircraft turn 4. The angular velocity of the aircraft about the real vertical The combination of correct statements is :Correct answer : 1,3.
Total air pressure consists of static pressure plus:Correct answer : Dynamic pressure.
Torque can be determined by measuring the :Correct answer : oil pressure at the fixed crown of an epicycloidal reducer of the main engine gearbox.
Today's airspeed indicators (calibrated to the Saint-Venant formula), indicate, in the absence of static (and instrumental) error :Correct answer : The calibrated airspeed (CAS) in all cases
To permit turbine exit temperatures to be measured, gas turbines are equipped with thermometers which work on the following principle:Correct answer : thermocouple
To obtain total air temp. (TAT) the airflow to the sensorCorrect answer : must be brought to rest without addition or removal of heat.
To ensure correct load sharing between AC generators operating in parallel :Correct answer : both real an reactive loads must be matched.
The yellow sector of the temperature gauge corresponds to:Correct answer : an exceptional operating range.
The yaw damper, which suppresses Dutch roll:Correct answer : controls the rudder, with the angular rate about the vertical axis as the input signal.
The Yaw Damper signal for a given rate of oscillation, isCorrect answer : varied inversely according to the airspeed.
The yaw damper indicator supplies the pilot with information regarding the:Correct answer : yaw damper action on the rudder
The white sector of the arc of a temperature gauge corresponds to:Correct answer : a special operating range.
The wavelength of a radio transmitted on frequency 121.95 MHz is:Correct answer : 2.46 m
The wavelength of a non-directional beacon (NDB) at a frequency of 300 kHz is:Correct answer : 1000 metres.
The voltage regulator of a DC generator is connected in :Correct answer : series with the shunt field coil.
The voltage of a fully charged lead-acid battery cell is :Correct answer : 2,2 volts.
The voice recorder records on four different channels the following information: 1- aural warnings 2- radio communications 3- conversations between the crew members through the cockpit interphone 4- announcements to the passengers The combination regrouping all the correct statements is:Correct answer : 1, 2, 3, 4.
The VHF Omnirange (VOR) uses the following wavelengths:Correct answer : metric.
The VHF direction finder uses the following wavelengths:Correct answer : metric.
The vertical speed indicator VSI is fed by:Correct answer : static pressure
The vertical speed indicator reads:Correct answer : The differential pressure between the capsule pressure and the case pressure.
The vertical speed indicator of an aircraft flying at a true airspeed of 100 kt, in a descent with a slope of 3 degrees, indicates :Correct answer : - 500 ft/min.
The vertical speed indicator (VSI) is fed by :Correct answer : static pressure
The Vertical Speed Indicator (VSI) give:Correct answer : Immediate trend information and stable climb or descent information after 6 to 12 seconds (depending on type).
The vertical reference unit of a three-axis data generator is equipped with a gyro with :Correct answer : 2 degrees of freedom and vertical spin axis
The velocity of sound at the sea level in a standard atmosphere is:Correct answer : 661 kt.
The velocity maximum operating (V.M.O.) is a speed expressed in :Correct answer : calibrated airspeed (CAS).
The use of the TCAS (Traffic Collision Avoidance System) for avoiding an aircraft in flight is now general. TCAS uses for its operation :Correct answer : the replies from the transponders of other aircraft
The upper airspeed limit of the green arc on the airspeed indicator represents:Correct answer : Maximum structural cruising speed (VNO)
The type of windings commonly used in DC starter motors are :Correct answer : series wound.
The two main sources of information used to calculate turbojet thrust are the:Correct answer : fan rotation speed (or N1) or the EPR (Engine Pressure Ratio).
The turn rate indicator uses a gyroscope: 1 - with one degree of freedom. 2 - with two degrees of freedom 3 - the frame of which is supported by two return springs. 4 - the spinning wheel axis of which is parallel to the pitch axis. 5 - the spinning wheel axis of which is parallel to the yawing axis. 6 - the spinning wheel axis of which is horizontal. The combination regrouping all the correct statements is:Correct answer : 1-3
The true statement among the following in relation to the application of Ohm's law is :Correct answer : Current in a circuit is directly proportional to the applied electromotive force.
The transmitter of RPM indicator may consist of : 1- a magnetic sensor supplying an induced AC voltage 2- a DC generator supplying a DC voltage 3- a single-phase AC generator supplying an AC voltage 4- a three-phase AC generator supplying a three-phase voltage The combination of correct statements is :Correct answer : 1,2,3,4
The total air temperature (TAT) is always :Correct answer : higher than Static Air Temperature (SAT) depending on the Calibrated Air Speed (CAS).
The temperature measured by the CHT (Cylinder Head temperature) probe is the :Correct answer : temperature within the hottest cylinder, depending on its position in the engine block.
The TCAS II data display devices can be in the form of: 1- a specific dedicated screen 2- a screen combined with the weather radar 3- a variometer represented on a liquid crystal screen which allows the display of Traffic Advisory (TA) and Resolution Advisory (RA) 4- an EFIS (Electronic Flight Instrument System) screen The combination regrouping all the correct statements is:Correct answer : 1, 2, 3 and 4.
The TCAS gives information:Correct answer : only in the vertical plane.
The TCAS 2 (Traffic Collision Avoidance System) provides : 1- traffic information (TA: Traffic Advisory) 2- horizontal resolution (RA: Resolution Advisory) 3- vertical resolution (RA: Resolution Advisory) 4- ground proximity warning The combination regrouping all the correct statements is:Correct answer : 1, 3
The TCAS 1 (Traffic Collision Avoidance System) provides : 1- traffic information 2- horizontal resolution (RA: Resolution Advisory) 3- vertical resolution (RA: Resolution Advisory) 4- ground proximity warning The combination regrouping all the correct statements is:Correct answer : 1
The TCAS (Traffic Collision Avoidance System) is a proximity alarm system which detects a "traffic" when the conflicting traffic is equipped with a :Correct answer : serviceable SSR transponder
The TCAS (Traffic Collision Avoidance System) gives avoidance resolutions :Correct answer : only in the vertical plane
The TCAS (Traffic Collision Avoidance System) computer receives information : 1- about the pressure altitude through the mode S transponder 2- from the radio-altimeter 3- specific to the airplane configuration 4- from the inertial units The combination regrouping all the correct statements is:Correct answer : 1, 2, 3
The synchronization of the autopilot control channel system : 1- enables the prevention of jerks during disengagement 2- enables the cancellation of rudder control signals 3- enables the prevention of jerks during engagement 4- functions in the heading, navigation, approach modes The combination regrouping all the correct statements is:Correct answer : 3, 4
The sustained oscillation in the Ring Laser Gyro (RLG) is initially caused byCorrect answer : the gas (or plasma) inside the triangular cavity is ionised by the voltage, causing helium atoms to collide with and transfer energy to the neon atoms.
The stick shaker calculator receives the following informations : 1- mass of the airplane 2- angle of attack 3- wing flap deflection 4- position of the landing gear 5- total air temperature 6- pressure altitude The combination regrouping all the correct statements is:Correct answer : 2, 3
The static pressure error of the static vent on which the altimeter is connected varies substantially with the:Correct answer : Mach number of the aircraft
The static air temperature (SAT) is :Correct answer : an absolute temperature expressed in degrees Celsius
The standard temperature for all our aerodynamic computations is:Correct answer : 15° C or 59° F.
The stall warning system receives information about the : 1- airplane angle of attack 2- airplane speed 3- airplane bank angle 4- airplane configuration 5- load factor on the airplane The combination regrouping all the correct statements is:Correct answer : 1, 4
The stall warning system of a large transport airplane includes: 1- an angle of attack sensor 2- a computer 3- a transmitter originating from the anemometer 4- an independent pitot probe 5- a transmitter of the flap/slat position indicating system The combination regrouping all the correct statements is:Correct answer : 1, 2, 5.
The speed of an asynchronous four-pole motor fed at a frequency of 400 Hertz is:Correct answer : 12000 revolutions per minute.
The so-called "hot buses" or "direct buses" are:Correct answer : directly connected to the battery.
The signal supplied by a transmitter fitted with a magnetic sensor, connected to an RPM indicator is :Correct answer : an AC voltage, the frequency of which varies with the RPM; the indicator converts the signal into square pulses which are then counted
The signal supplied by a transmitter fitted with a 3-phase AC generator, connected to RPM indicator, is :Correct answer : a three-phase voltage, the frequency of which varies with the RPM; the indicator is provided with a motor which drives a magnetic tachometer
The services connected to a supply bus-bar are normally in:Correct answer : parallel, so that isolating individual loads decreases the bus-bar current consumption.
The sensors used to measure the exhaust gas temperature on an airplane equipped with turbojets are:Correct answer : thermocouples.
The RPM indicator (or tachometer) of a piston engine can include a small red arc within the normally used (green arc). In the RPM range corresponding to this small red arc the:Correct answer : propeller generates vibration, continues rating is forbidden.
The RPM indicator (or tachometer) of a piston engine can include a small red arc within the arc normally used (green arc) In the RPM range corresponding to this small red arc the :Correct answer : propoller generates vibration, continuous rating is forbidden
The rotational speed of an air-driven gyro is normally:Correct answer : 9000- 12000 RPM
The response time of a vertical speed detector may be increased by adding a:Correct answer : correction based on an accelerometer sensor.
The requirement to carry a GPWS (Ground Proximity Warning System) concerns aeroplanes which are, depending on their age, weight and passenger capacity : 1- turboprop-powered 2- piston-powered 3- jet-powered The combination regrouping all the correct statements is :Correct answer : 1, 3
The red pointer which is normally on the red line on the EGT (Exhaust Gas Temperature) indicators:Correct answer : moves when the corresponding value is exceeded and remains positioned at the maximum value that has been reached.
The recovery factor of a "flush bulb" temperature sensor generally varies fromCorrect answer : 0.35 to 0.50
The reason for using inverters in an electrical system is ..Correct answer : To change DC into AC.
The reason for having a square-law compensation in the airspeed-indicator mechanism is:Correct answer : The differential pressure increases with the square of the airspeed.
The reading of a Mach indicator is independent of :Correct answer : the outside temperature
The rate-of-turn is the:Correct answer : change-of-heading rate of the aircraft
The ram air temperature (RAT) is defined as:Correct answer : SAT plus the ram rise.
The quantity of fuel in the tanks is measured by capacitor type contents gauges. The working principle of these sensors is to measure the :Correct answer : charge of condensors
The quadrantal deviation of the magnetic compass is due to the action of :Correct answer : the soft iron pieces influenced by the geomagnetic field
The quadrantal deviation of a magnetic compass is corrected by using :Correct answer : soft iron pieces
The QNH is by definition the value of the:Correct answer : altimeter setting so that the needles of the altimeter indicate the altitude of the location for which it is given.
The purpose of the voltage regulator is to :Correct answer : Keep a constant voltage output from the generator.
The purpose of the vibrating device of an altimeter is to:Correct answer : reduce the effect of friction in the linkages
The purpose of the slaving torque motor is:Correct answer : to produce a precessive force in order to align the gyro with the earth's magnetic field.
The purpose of the IVSI is toCorrect answer : give an instantaneous indication of the aircraft's vertical speed when a climb or descent has been initiated.
The purpose of the flux-valve is:Correct answer : to sense the direction of the earth's magnetic field relative to the airplane.
The purpose of the automatic trim is to: 1- reduce to zero the hinge moment of the entire control surface in order to relieve the load on the servo-actuator 2- ensure the aeroplane is properly trimmed when the autopilot is disengaged 3- maintain the same stability/manoeuverablity trade-off within the whole flight envelope The combination regrouping all the correct statements is:Correct answer : 1, 2, 3.
The purpose of the altitude alert system is to generate a visual and aural warning to the pilot when the:
Correct answer : airplane altitude differs from a selected altitude.
The purpose of static wick dischargers is to :Correct answer : dissipate static charge of the aircraft inflight thus avoiding radio interference as a result of static electricity.
The purpose of compass swinging is to determine the deviation of a magnetic compass :Correct answer : on any heading
The purpose of Auto Trim function in autopilot is to :Correct answer : control elevator trim tab in order to relieve elevator load
The purpose of Auto Throttle is:Correct answer : to maintain constant engine power or airplane speed
The purpose of an airplane automatic trim system is to trim out the hinge moment of the:Correct answer : elevator.
The purpose of an airplane automatic trim system is to trim out the hinge moment of the :Correct answer : elevator(s)
The purpose of a voltage regulator is to control the output voltage of the :Correct answer : generator at varying loads and speeds.
The purpose of a compass swing is to attempt to coincide the indications of:Correct answer : compass north and magnetic north.
The probe used to measure the air intake pressure of a gas turbine engined powerplant is:Correct answer : an aneroid capsule.
The principle of the TCAS (Traffic Collision Avoidance Systems) is based on the use of :Correct answer : transponders fitted in the aircraft
The principle of the Mach indicator is based on the computation of the ratio :Correct answer : (Pt - Ps) to Ps
The principle of detection of a vibration monitoring system is based on the use of:Correct answer : 2 accelerometers.
The principle of capacity gauges is based on the:Correct answer : capacitance variation of a given capacitor with the type of dielectric.
The principle of capacitor gauges is based on:Correct answer : the variation in capacity of a condensor with the nature of the dielectric
The principal advantage of a gyromagnetic compass (slaved gyro compass) is:Correct answer : It combines the north-seeking ability of the magnetic compass with the stability of the direction indicator.
The primary purpose of the reverse current relay is to :Correct answer : Prevent the battery from delivering current to the generator.
The primary purpose of bonding the metallic parts of an aeroplane is to :Correct answer : provide safe distribution of electrical charges and currents.
The Primary Flight Display (PFD) displays information dedicated to:Correct answer : piloting.
The primary factor which makes the servo-assisted altimeter more accurate than the simple pressure altimeter is the use of:Correct answer : an induction pick-off device
The pressure probe used to measure the pressure of a low pressure fuel pump is:Correct answer : an aneroid capsule.
The pressure measured at the forward facing orifice of a pitot tube is the :Correct answer : total pressure.
The pressure altitude is the altitude corresponding :Correct answer : in standard atmosphere, to the pressure Ps prevailing at this point
The position of a Flight Director command bars:Correct answer : indicates the manoeuvers to execute, to achieve or maintain a flight situation.
The pitot tube supplies:Correct answer : Impact pressure.
The pendulum type detector system of the directional gyro feeds :Correct answer : a levelling erection torque motor
The output voltage of DC generators used in aircraft is normally regulated by:
Correct answer : Controlling the current in the field windings.
The output of a generator is controlled by :Correct answer : varying the field strength.
The operation of the radio altimeter of a modern aircraft is based on:Correct answer : frequency modulation of the carrier wave.
The operation of the GPWS (Ground Proximity Warning System) is governed by laws taking the aircraft height into account as well as : 1- the descent rate 2- the climb rate 3- the aircraft configuration 4- the selected engine rpm The combination of correct statements is :Correct answer : 1,3
The operating principle of the vertical speed indicator (VSI) is based on the measurement of the rate of change of:Correct answer : Static pressure
The operating principle of the pendulous vane unit erecting system is:Correct answer : The air flow reaction through the open vanes.
The operating principle of the "induction" type of tachometer is to measure the:Correct answer : rotation speed of an asynchronous motor energized by an alternator.
The operating principle of Flowmeters, or "unit flow meters," the most commonly used at the present time, is to measure across their system the :Correct answer : quantity of fuel movement
The operating principle of an "electronic" tachometer is to measure the:Correct answer : frequency of the electric impulse created by a notched wheel rotating in a magnetic field.
The operating frequency range of a low altitude radio altimeter is:Correct answer : 4200 MHz to 4400 MHz.
The operating frequency of the Radio Altimeter is normallyCorrect answer : between 4,250 and 4,350 MHz, FMCW
The oncoming stall of a large transport airplane appears in the form of:Correct answer : control stick vibrations simulating natural buffeting.
The needle of the Turn and Bank indicator shows:Correct answer : The rate at which the aircraft is turning about the yaw axis.
The moving part in an AC generator is usually referred to as the :Correct answer : rotor.
The most widely used electrical frequency in aircraft is :Correct answer : 400 Hz.
The most commonly used circuit protecion device in modern aircraft is aCorrect answer : push and pull circuit breaker.
The most common voltage / frequency used in jet transport A/C is:Correct answer : 115 VAC / 400 Hz
The most common overload protection device used in aircraft is:Correct answer : Circuit breakers
The modulation technique used by the Radio Altimeter is referred to asCorrect answer : Frequency Modulated Continuous Wave
The minimum airborne equipment required for operation of a VHF direction finder is a:Correct answer : VHF transmitter-receiver operating in the 118 MHz to 136 MHz range.
The measurement of the turbine temperature or of the EGT (Exhaust Gas Temperature) is carried out at the :Correct answer : high pressure turbine outlet.
The measurement of SAT (static air temperature) by direct means is not possible on some (fast) aircraft becauseCorrect answer : of the effects from adiabatic compression and friction.
The measurement of exhaust gas temperature (EGT) is normally based upon the principle ofCorrect answer : voltage generation in a thermocouple
The measured output power components of a constant frequency AC system are :Correct answer : kVA and kVAR.
The maximum directional gyro error due to the earth rotation is:Correct answer : 15°/hour
The manifold pressure gauge measures
Correct answer : absolute pressure
The main reason for having the centre of gravity below the pivot point in a card-type magnetic compass is:Correct answer : To compensate for the vertical magnetic component Z such that the magnet system is within approx. 2° of the true horizontal between 60° N and 40° S.
The main input data to the Stall Warning Annunciator System are : 1- Mach Meter indication 2- Angle of Attack 3- Indicate Airspeed (IAS) 4- Aircraft configuration (Flaps/Slats) The combination regrouping all the correct statements is :Correct answer : 2,4
The main advantage of a ratiometer-type temperature indicator is that it:Correct answer : carries out an independent measurement of the supply voltage.
The main advantage of a ratiometer type temperature indicator is that it:Correct answer : carries out an independent measurement of the supply voltage.
The magnetic heading can be derived from the true heading by means of a :Correct answer : map showing the isogonal lines
The mach number is the:Correct answer : true airspeed (TAS) divided by the local speed of sound
The Mach number is a function of theCorrect answer : Absolute temperature of the air.
The Mach number is :Correct answer : the ratio of the aircraft true airspeed to the sonic velocity at the altitude considered
The low-altitude radio altimeters used in precision approaches: 1 operate in the 1540-1660 MHz range. 2 are of the pulsed type. 3 are of the frequency modulation type. 4 have an operating range of 0 to 5000 ft. 5 have a precision of +/- 2 feet between 0 and 500 ft. The combination of the correct statements is :Correct answer : 3, 5
The limits of the yellow scale of an airspeed indicator are :Correct answer : VNO for the lower limit and VNE for the upper limit
The limits of the white scale of an airspeed indicator are :Correct answer : VSO for the lower limit and VFE for the upper limit
The limits of the green scale of an airspeed indicator are :Correct answer : VS1 for the lower limit and VNO for the upper limit
The interception of a localizer beam by the autopilot takes place :Correct answer : at a constant heading
The Instrument Landing System (ILS) uses the following wavelengths:Correct answer : metric.
The inputs to the GPWS (Ground Proximity Warning System), are: 1- Air Data Computer - (Mach number and Vertical Speed) 2- Radio Altimeter 3- NAV/ILS (Glide Slope) 4- NAV/VOR 5- Flap (position) 6- Angle of Attack 7- Landing Gear (position) The combination of correct statement is:Correct answer : 1,2,3,5,7
The input signal of the amplifier of the gyromagnetic compass resetting device originates from the:Correct answer : error detector.
The indications on a directional gyroscope or gyrocompass are subject to errors, due to: 1- rotation of Earth. 2- aeroplane motion on Earth. 3- lateral and transversal aeroplane bank angles. 4- north change. 5- mechanical defects. Chose the combination with true statements only:Correct answer : 1,2,3,5.
The indication of the directional gyro as an on-board instrument are valid only for a short period of time. The causes of this inaccuracy are : 1. The earth's rotation 2. The longitudinal acceleration 3. The aircraft's motion over the surface of the earth. 4. The mechanical defects of the gyro 5. The gyro's weight 6. The gimbal mount of the gyro rings The combination of correct statements is :Correct answer : 1,3,4,6
The indication of a fuel float gauge varies with : 1- aircraft attitude 2- accelerations 3- atmospheric pressure 4- temperature The combination of correct statements is :Correct answer : 1,2,4
The hysteresis error of an altimeter varies substantially with the:Correct answer : time passed at a given altitude.
The hysteresis error of an altimeter varies substantially with theCorrect answer : time passed at a given altitude
The higher the airspeed is:Correct answer : The higher the bank angle must be to turn at the standard rate.
The heading reference unit of a three-axis data generator is equipped with a gyro with:Correct answer : 2 degrees of freedom and horizontal spin axis
The heading reference unit of a three axis data generator is equipped with a gyro which has:Correct answer : 2 degrees of freedom and horizontal spin axis.
The heading read on the dial of a directional gyro is subject to errors, one of which is due to the movement of the aircraft. This error...Correct answer : is dependent on the ground speed of the aircraft, its true track and the average latitude of the flight
The heading information originating from the gyromagnetic compass flux valve is sent to the:Correct answer : error detector.
The Head Up Display (HUD) is a device allowing the pilot, while still looking outside, to have:Correct answer : a synthetic view of the instrument procedure.
The gyromagnetic compass torque motor :Correct answer : causes the directional gyro unit to precess
The Ground Proximity Warning Systems (GWPS) Mode 5 is activated whenCorrect answer : when the aircraft is significantly below the ILS glidepath.
The Ground Proximity Warning Systems (GWPS) Mode 4 is activated whenCorrect answer : an unsafe terrain clearance situation is experienced, with the aircraft not in the landing configuration.
The Ground Proximity Warning Systems (GWPS) Mode 3 is activated whenCorrect answer : an excessive height loss is experienced after take-off or during go-around.
The Ground Proximity Warning Systems (GWPS) Mode 2 is activated whenCorrect answer : the aircraft is flying into rising terrain.
The Ground Proximity Warning Systems (GWPS) Mode 1 is activated whenCorrect answer : the barometric descent rate is excessive with respect to the aircraft height above the terrain.
The Ground Proximity Warning System (GPWS) is a system working according to a height span ranging from :Correct answer : 50 ft to 2 500 ft
The Ground Proximity Warning System (GPWS) generates the following sound signal or signals when the aircraft is sinking after a take-off or a go-around :Correct answer : DON'T SINK repetitive only
The GPWS calculator receives the following signals : 1 - vertical speed 2 - radio altimeter height 3 - pressure altitude 4 - glidepath deviation 5 - gear and flaps position 6 - angle of attack The combination regrouping all the correct statements is :Correct answer : 1,2,4,5
The GPWS calculator is able to operate in the following modes : 1- excessive descent rate 2- excessive rate of terrain closure 3- excessive angle of attack 4- too high descent attitude 5- loss of altitude after take-off 6- abnormal gear/flaps configuration 7- excessive glidepath deviation The combination regrouping all the correct statements is:Correct answer : 1,2,5,6,7
The GPWS (Ground Proximity Warning System) releases a warning in the following cases : 1- excessive rate of descent 2- excessive ground proximity rate 3- loss of altitude after take-off or go-around 4- abnormal gear/flaps configuration 5- excessive deviation under the glidepath 6- abnormal airbrakes configuration The combination regrouping all the correct statements is:Correct answer : 1, 2, 3, 4, 5
The GPWS (Ground Proximity Warning System) is active for a height range from:Correct answer : 50 ft to 2 500 ft measured by the radio altimeter.
The gimbal error of the directional gyro is due to the effect of :Correct answer : a bank or pitch attitude of the aircraft
The Gestalt theory is relevant to:Correct answer : perception and organisation
The gauge indicating the quantity of fuel measured by a capacity gauging system can be graduated directly in weight units because the dielectric constant of fuel is:Correct answer : twice that of air and varies directly with density.
The functions of an autopilot (basic modes) consist of :Correct answer : stabilizing and monitoring the movement around the airplane centre of gravity.
The function of the Generator Breaker is to close when the voltage of the :Correct answer : generator is greater than battery voltage and to open when the opposite is true
The function of a NOT logic gate within a circuit is to :Correct answer : invert the input signal such that the output is always of the opposite state.
The function of a CSD in an AC generating system is to:Correct answer : drive the generator at a constant speed.
The frequency sweep rate of the Radio Altimeter is in the order ofCorrect answer : 4,250 MHz
The frequency of the current provided by an alternator depends on...Correct answer : its rotation speed
The frequency of an AC generator is dependent on the :Correct answer : number of pairs of poles and the speed of the moving part.
The frequency at which skywaves should least affect reception?Correct answer : VLF
The float type fuel gauges provide information on:Correct answer : volume whose indication varies with the temperature of the fuel.
The flight director indicates the :Correct answer : optimum instantaneous path to reach selected radial.
The flight data recorders must preserve the conversation and aural warnings of the last :Correct answer : 30 minutes of operation
The flight data recorders must preserve the conversation and aural warnings of the last :Correct answer : 30 minutes of operation.
The flight data recorder must start data recording automatically:Correct answer : before the airplane is able to move by under its own power.
The flight data recorder must automatically stop data recording when the:Correct answer : airplane cannot any longer move by its own power.
The fields affecting a magnetic compass originate from: 1. magnetic masses 2. ferrous metal masses 3. non ferrous metal masses 4. electrical currents The combination of correct statements is:Correct answer : 1, 2, 4
The Fan Markers uses the following wavelengths:Correct answer : metric.
The essential difference between aircraft AC alternators and DC generators (dynamos) is that the:Correct answer : induced (output) windings of the alternators are fixed (stator), and the dynamos have a fixed inductor (field) coil.
The essential components of a flight director are : 1- a computer 2- an automatic pilot 3- an autothrottle 4- command bars The combination of correct statements is :Correct answer : 1,4
The error introduced in geostrophic or gradient wind calculations when the pressure is changing rapidly is the:Correct answer : isallobaric effect.
The error in altimeter readings caused by the variation of the static pressure near the source is known as:Correct answer : position pressure error.
The error in a direction indicator caused by the convergence of the meridians in northerly and southerly latitudes is calledCorrect answer : transport error
The engine pressure ratio (EPR) is computed by:Correct answer : dividing turbine discharge pressure by compressor inlet pressure.
The Engine Pressure Ratio (EPR) is computed by :Correct answer : dividing turbine discharge pressure by compressor inlet pressure.
The engagement of an autopilot is not possible when: 1- there is a fault in the electrical power supply 2- the controlled-turn knob is not set to centre-off 3- there is a synchronization fault in the pitch channel 4- there is a fault in the attitude reference unit The combination regrouping all the correct statements is:Correct answer : 1, 2, 3, 4.
The electronic tachometer sensor is composed of:Correct answer : a notched wheel rotating in front of an electro-magnet.
The electromotive force of a thermocouple is not modified if one or several intermediate metals are inserted in the circuit provided that:Correct answer : contact points are maintained at equal temperature between these different metals.
The Distance Measuring Equipment (DME) uses the following wavelengths:Correct answer : decimetric.
The disavantages of an "electric" fuel (float) gauge are : 1- the design is complex 2- the indications are influenced by the airplane attitude variations 3- the indications are influenced by the accelerations 4- the indications are influenced by temperature variations 5- that an alternative current supply is necessary The combination regrouping all the correct statements is :Correct answer : 2, 3, 4
The disadvantages of a single-phase A.C. generator tachometer are: 1- the presence of spurious signals due to a D.C. generator commutator 2- the importance of line resistance on the information value 3- the influence of temperature on the tachometer information The combination regrouping all the correct statements is:Correct answer : 2.
The disadvantage of an electronic rpm indicator is the :Correct answer : necessity of providing a power supply source.
The directional gyro keeps its rotation axis aligned towardCorrect answer : a point in space.
The directional gyro axis spins about the local vertical by 15°/hour :Correct answer : on the North pole
The directional gyro axis no longer spins about the local vertical when it is located :Correct answer : on the equator
The difference between (1) a fuse and (2) a circuit breaker is:Correct answer : (1)not resettable, (2)resettable.
The detection of a feeder fault on a direct current circuit results in: 1. automatic disconnection of the generator from the aircraft AC busbar 2. opening of generator field current relay 3. opening of the main relay of the generator breaker 4. opening of balancing circuit connecting two generators 5. lighting of an indicator lamp The combination of correct statements is:Correct answer : 1, 2, 3, 4, 5
The density altitude is :Correct answer : the altitude of the standard atmosphere on which the density is equal to the actual density of the atmosphere
The Decision Height (DH) warning light comes on when an aircraft:Correct answer : descends below a pre-set radio altitude.
The data supplied by a radio altimeter:Correct answer : indicates the distance between the ground and the aircraft.
The CVR (Cockpit Voice Recorder) includes: 1. a microphone 2. a recorder in compliance with the shock and fire resistance standards 3. an independent battery 4. a flight data recorder The combination regrouping all the correct statements is:Correct answer : 1, 2
The current in a DC circuit, according to Ohm's law, can be described as:Correct answer : Inversely proportional to the resistance and proportional to the voltage.
The correction of the control surface deflection made by the auto-pilot calculator in order to keep a given altitude will be all the more significant when the : 1- difference between the attitude necessary to keep the given or reference altitude and the instantaneous attitude is high. 2 - variation speed of the difference between the attitude necessary to maintain the altitude and the instantaneous attitude is high. 3 - difference between the altitude of reference and the instantaneous altitude is high. 4 - variation speed of the difference between the reference altitude and the instantaneous altitude is high. The combination regrouping the correct statements is:Correct answer : 1, 2, 3 and 4.
The correction of the control surface deflection made by the automatic pilot calculator in order to stabilize the longitudinal attitude will be all the more significant as the : 1- difference between the reference attitude and the instantaneous attitude is high. 2- rate of change of the difference between the reference attitude and the instantaneous attitude is high. 3- temperature is low. 4- pressure altitude is high. The combination regrouping all the correct statements is:Correct answer : 1,2.
The control law of a transport airplane autopilot control channel may be defined as the relationship between the :Correct answer : computer input deviation data and the output control deflection signals.
The computers of the electrical flight controls system comply with programs defined by attitude control laws such as : 1- on the longitudinal axis, the law may combine the load factor and the changes in the pitch rate as control data sources 2- the trimming is automatic and ensures neutral stability 3- the protections apply to pitch and bank attitudes depending on the speed 4- these laws do not apply to the whole flight envelope The combination regrouping all the correct statements is:Correct answer : 1, 2, 3
The compass heading can be derived from the magnetic heading by reference to a:Correct answer : compass swinging curve
The common used symbol of voltage is .....Correct answer : U and it is measured in volts.
The common used symbol of resistance isCorrect answer : R and it mesured in ohms.
The command functions of an autopilot include, among others, the holding of : 1- vertical speed 2- altitude 3- attitude 4- bank 5- heading The combination which regroups all of the correct statements is :Correct answer : 1 - 2 - 5
The command bars of a flight director are generally represented on an:Correct answer : ADI
The command bars of a flight director are generally represented on an:Correct answer : ADI (Attitude Director Indicator)
The characteristics of the directional gyro (DG) used in a gyro stabilised compass system are :Correct answer : two degrees of freedom, whose horizontal axis corresponding to the reference direction is maintained in the horizontal plane by an automatic erecting system.
The capacity of a battery is expressed in terms of :Correct answer : ampere-hours.
The capacity fuel gauges provide information:Correct answer : on mass whose indication is independent of the temperature of the fuel.
The calibrated airspeed (CAS) or Mach holding mode is carried out by: 1- the autopilot pitch channel in the climb mode at a constant calibrated airspeed (CAS) or Mach number 2- the autothrottles in the climb mode at a constant calibrated airspeed (CAS) or Mach number 3- the autopilot pitch channel in the altitude or glide path holding mode 4- the autothrottles in the altitude or glide path holding mode The combination regrouping all the correct statements is:Correct answer : 1 and 4.
The calibrated airspeed (CAS) is obtained by applying to the indicated airspeed (IAS) :Correct answer : an instrument and position/pressure error correction.
The calculator combined with the stick shaker system of a modern transport airplane receives information about the: 1- angle of attack 2- engine R.P.M. 3- configuration 4- pitch and bank attitude 5- sideslip The combination regrouping all the correct statements is:Correct answer : 1 and 3.
The basis properties of a gyroscope are : 1. The gyro's weight. 2. The rigidity in space. 3. The inertia. 4. The high RPM. 5. The precession The combination of correct statements is :Correct answer : 2,5
The basic principle used for measuring a quantity of fuel in a transport airplane equipped with "capacitor" gauges is that the:Correct answer : capacity of a capacitor depends on the nature of the dielectric in which it is immersed.
The Auxiliary Power Unit (APU) has its own AC generator which:Correct answer : supplies the aircraft with three-phase 115-200 V, 400 Hz AC.
The autothrottle : 1- enable to catch and to maintain the N1 RPM 2- enable to catch and to maintain the N2 RPM 3- enable to catch and to maintain an airplane indicated airspeed (IAS) 4- is always engaged automatically at the same time as the autopilot The combination regrouping all the correct statements is:Correct answer : 1 and 3
The autopilot is divided into two basic modes, what are they called?Correct answer : Lateral mode (HDA) and Vertical mode (VS).
The autopilot basic modes include, among other things, the following functions : 1- pitch attitude hold 2- pressure altitude hold 3- horizontal wing hold 4- heading hold The combination regrouping all the correct statements is :Correct answer : 1, 3
The automatic trim is a component of the autopilot pitch channel. Its function is to:Correct answer : transfer a stabilized aeroplane to the pilot during autopilot disengagement.
The automatic power control system (autothrottle) of a transport airplane has the following mode(s) : 1- capture and holding of speeds 2- capture and holding of Mach number 3- capture and holding of flight angle of attack 4- capture and holding of N1 or EPR (Engine Power Ratio) 5- capture and holding of flight paths The combination regrouping all the correct statements is :Correct answer : 1, 2, 4
The Automatic Direction Finder uses the following wavelengths:Correct answer : hectometric or kilometric.
The atmospheric pressure at FL 70 in a "standard + 10" atmosphere is:Correct answer : 781.85 hPa.
The angle of attack transmitters placed laterally on the forward part of the fuselage supply an electrical signal indicating: 1- the angular position of a wind vane 2- a differential pressure in a probe, depending on the variation of the angle of attack 3- a differential pressure in a probe, depending on the variation of the speed The combination regrouping all the correct statements is:Correct answer : 1, 2.
The angle of attack transmitter provides an electric signal varying with: 1- the angular position of a wind vane 2- the deviation between the airplane flight attitude and the path calculated by the inertial unit 3- a probe differential pressure depending on the variation of the angle of attack The combination regrouping all the correct statements is:
Correct answer : 1 and 3.
The angle of attack of a two dimensional wing section is the angle between :Correct answer : the chord line of the aerofoil and the free stream direction.
The angle between Magnetic North and Compass North is called:Correct answer : compass deviation
The Altitude Select System:Correct answer : Is annunciated by light and/or sound when airplane is approaching selected altitude
The altitude indicated on board an aircraft flying in an atmosphere where all the atmosphere layers below the aircraft are cold is :Correct answer : higher than the real altitude.
The altitude indicated on board an aircraft flying in an atmosphere where all atmosphere layers below the aircraft are warm is:Correct answer : lower than the real altitude.
The altimeter is fed by :Correct answer : static pressure
The altimeter is based upon the same principle as:Correct answer : The aneroid barometer.
The altimeter consists of one or several aneroid capsules located in a sealed casing. The pressures in the aneroid capsule (i) and casing (ii) are respectively :Correct answer : (i) vacuum (or a very low pressure) (ii) static pressure
The allowable landing weight will:Correct answer : Increase with uphill runway slope.
The airspeed indicator of an aircraft is provided with a moving red and white hatched pointer. This pointer indicates the:Correct answer : maximum speed in VMO operation versus altitude
The airspeed indicator of a twin-engined aircraft comprises different sectors and color marks. The blue line corresponds to the :Correct answer : optimum climbing speed with one engine inoperative, or Vy
The Airspeed Indicator measures:Correct answer : Differential pressure.
The airspeed indicator circuit consists of pressure sensors. The pitot tube directly supplies:Correct answer : the total pressure.
The airspeed indicator circuit consists of pressure sensors. The pitot tube directly supplies:Correct answer : the total pressure
The airplane outside air temperature "probe" measures the :Correct answer : "total" air temperature minus kinetic heating effects in order to obtain the static temperature.
The aircraft radio equipment which emits on a frequency of 4400 MHz is the :Correct answer : radio altimeter.
The airborne weather radar uses the following wavelengths:Correct answer : centimetric.
The aim of the flight director is to provide information to the pilot:Correct answer : allowing him to return to a desired path in an optimal way.
The advantages provided by an air data computer to indicate the altitude are : 1. Position/pressure error correction 2. Hysteresis error correction 3. Remote data transmission capability 4. Capability of operating as a conventional altimeter in the event of a failure The combination of correct statements is :Correct answer : 1,3,4
The advantages of single-phase A.C. generator tachometer are: 1- the suppression of spurious signals due to a D.C. generator commutator 2- the importance of line resistance on the information value 3- the independence of the information in relation to the airborne electrical power supply 4- the ease of transmission of the information The combination regrouping all the correct statements is:Correct answer : 1, 3.
The advantages of grounding the negative pole of the aircraft structure are: 1. Weight saving 2. Easy fault detection 3. Increase of short-circuit risk 4. Reduction of short-circuit risk 5. Circuits are not single-wired lines The combination regrouping all the correct statements is :Correct answer : 1, 2, 4
The advantages of an electrical induction tachometer are: 1- the display is not sensitive to line resistance 2- the measurement is independent of aircraft power supply 3- the measurement is independent of temperature variations 4- the option to use without restriction several indicators connected in parallel to a single transmitter The combination regrouping all the correct statements is:Correct answer : 1, 2, 4.
The advantages of an electric float gauge are: 1- ease of manufacture 2- independence of the indication relative to the variations of the aircraft power system if the measurement is made by a ratiometer 3- independence of the indication relative to the variations of the aircraft power system if the measurement is made by a galvanometer 4- independence of the indication relative to temperature variations The combination regrouping all the correct statements is:Correct answer : 1, 2, 4
The advantages of an "electric" fuel (float) gauge are : 1- easy construction 2- independence of indications with regard to airplane attitude 3- independence of indications with regard to the accelerations 4- independence of indications with regard to temperature variations 5- independence of indications with regard to vibrations The combination regrouping all the correct statements is:Correct answer : 1
The advantages of a D.C. generator tachometer are: 1- easy transmission of the information. 2- independence of the information relative to the airborne electrical power supply. 3- freedom from any spurious current due to the commutator. The combination regrouping all the correct statements is:Correct answer : 1, 2.
The "sensor part" of the flux-valve is:Correct answer : The three pick-up coils.
The "heading hold" mode is selected on the flight director (FD) with a course to steer of 180°. Your aircraft holds a heading of 160°. The vertical bar of the FD:Correct answer : is centered if the aircraft is on optimum path to join heading 180°
The "Bourdon tube" is used to measure :Correct answer : pressure.
TAS is:Correct answer : the aircraft's true airspeed which is EAS corrected for altitude and temperature
Static dischargers : 1. are used to set all the parts of the airframe to the same electrical potential 2. are placed on wing and tail tips to facilitate electrical discharge 3. are used to reset the electrostatic potential of the aircraft to a value approximating 0 volts 4. are located on wing and tail tips to reduce intererence with the on-board radiocommunication systems to a minimum 5. limit the risks of transfer of electrical charges between the aircraft and the electrified clouds The combination regrouping all the correct statements is :Correct answer : 2,4,5.
Sound propagates through the air at a speed which only depends on :Correct answer : temperature.
Skip distance is the:Correct answer : range from the transmitter to the first sky wave
Rigidity in a gyroscope isCorrect answer : the tendency it has to remain in its plane of rotation and resist attempts to alter its position
Regarding Electronic Instrument System (EFIS) : 1- the Navigation Display (ND) displays Flight Director Bars. 2- the altimeter setting is displayed on the PFD (Primary Flight Display). 3- the PFD is the main flying instrument. 4- the FMA (Flight Mode Annunciator) is part of the ND. The combination regrouping all the correct statements is :Correct answer : 2, 3.
Refer to the following TAF extract: BECMG 1821 2000 BKN004 PROB30 BECMG 2124 0500 FG VV001 What does the abbreviation "VV001" mean?Correct answer : Vertical visibility 100 FT.
Real load sharing in a parallel AC system is achieved by :Correct answer : adjusting the torque on each generator rotor via the CSD unit.
Real load sharing in a parallel AC system is achieved by :Correct answer : automatic adjustment of the torque on each generator rotor via the CSD unit.
R1 and R2 resistances are connected in parallel. The value of the equivalent resistance (Req) so obtained is given by the following formula:Correct answer : 1/Req = 1/R1 + 1/R2
Pulling the fire shutoff handle causes a number of devices to disconnect. In respect of the AC generator it can be said that the:Correct answer : exciter control relay and the generator breaker open.
Precession in a gyroscope isCorrect answer : the reaction at 90 degrees in direction of rotation caused by a applied force to the spinning wheel
One of the main functions of the airline battery is to:Correct answer : Be an emergency source of electric power.
One essensial law of magnetism is:Correct answer : A permanent magnet bar will always have a north and a south pole.
One advantage of a movable-stabilizer system compared with a fixed stabilizer system is that:Correct answer : it is a more powerful means of trimming
On the ground, during a right turn, the turn indicator indicates :Correct answer : needle to the right, ball to left
On the ground, during a left turn, the turn indicator indicates :Correct answer : needle to the left, ball to the right
On the flight deck, an oil operated CSD unit is normally provided with means of monitoring the:Correct answer : oil over-temperature and low oil pressure.
On board present aircraft, the batteries used are mainly Cadmium-Nickel. Their advantages are: 1. low risk of thermal runaway 2. high internal resistance, hence higher power 3. good charging and discharging capability at high rating 4. wider permissible temperature range 5. good storage capability 6. sturdiness owing to its metal casing 7. the electrolyte density remains unchanged during charging. The combination of correct statement is:Correct answer : 3, 4, 5, 6
On board an aircraft the altitude is measured from the:Correct answer : pressure altitude
On an autopilot coupled approach, GO AROUND mode is engaged:Correct answer : by the pilot pushing a button located on the throttles.
On an aeroplane utilising AC as primary power supplies, the batteries are charged in flight from :Correct answer : a Transformer Rectifier Unit.
On an aeroplane equipped with a constant speed propeller, the RPM indicator enables :Correct answer : control of the propeller regulator and the display of propeller RPM.
On a TCAS2 (Traffic Collision Avoidance System), a corrective "resolution advisory" (RA) is a "resolution advisory":Correct answer : asking the pilot to modify effectively the vertical speed of his aircraft.
On a TCAS 2 (Traffic Collision Avoidance System) the preventive "resolution advisory" (RA) is a "resolution advisory":Correct answer : that advises the pilot to avoid certain deviations from the current vertical rate but does not require any change to be made to that rate.
On a modern aircraft, the flight director modes are displayed on the:Correct answer : upper strip of the PFD (Primary Flight Display).
Non-electrical temperature measurements may be done byCorrect answer : all of the above
Modern low altitude radioaltimeters emit waves in the following frequency band:Correct answer : SHF (Super High Frequency).
Modern aircraft can have many different types of circuit breakers (CB). Generally speaking a CB is an electric component that:Correct answer : When excessive current flows through it, it will open the circuit, but a closed circuit is regained when it is reset.
Mode "Localizer ARM" active on Flight Director means:Correct answer : System is armed for localizer approach and coupling will occur upon capturing center line
Match true airspeed (TAS) with the associated definition:Correct answer : Calibrated airspeed corrected for altitude and non-standard temperature.
Match indicated airspeed (IAS) with the associated definition:Correct answer : The airspeed you read directly from the airspeed indicator.
Match groundspeed (GS) with the associated definition:Correct answer : Actual speed of an aircraft over ground.
Match calibrated airspeed (CAS) with the associated definition:Correct answer : Indicated airspeed corrected for installation and instrument errors.
Magnetic compass swinging is carried out to reduce as much as possible :Correct answer : deviation.
Machmeter readings are subject to:Correct answer : position pressure error
Mach Trim is a device to compensate for :Correct answer : backing of the aerodynamic center at high Mach numbers by moving the elevator to nose-up
Landing shall be considered as having been carried out automatically when the autopilot and the auto-throttle of an aircraft are disengaged by flight crew :Correct answer : during ground roll.
It may be determined that an aircraft is not properly bonded if :Correct answer : static noises can be heard on the radio.
Iron and brass are commonly used in bimetallic thermometers, becauseCorrect answer : they have two different coefficients of linear expansion.
Indication of Mach number is obtained from:Correct answer : Indicated speed and altitude using a speed indicator equipped with an altimeter type aneroid
Indicated airspeed corrected for position error is:Correct answer : Calibrated airspeed.
Indicated airspeed (as read on the airspeed indicator] will:Correct answer : Remain unchanged in headwind and tailwind.
In transport airplanes, the temperatures are generally measured with : 1- resistance thermometers 2- thermocouple thermometers 3- reactance thermometers 4- capacitance thermometers 5- mercury thermometers The combination regrouping all the correct statements is :Correct answer : 1, 2
In the vicinity of the magnetic North Pole the magnetic compass is useless because:Correct answer : The horizontal component of the magnetic field is too weak.
In the Southern hemisphere, during deceleration following a landing in an Easterly direction, the magnetic compass will indicate :Correct answer : an apparent turn to the North.
In the Southern hemisphere, during deceleration following a landing in a Westerly direction, the magnetic compass will indicate :Correct answer : an apparent turn to the North.
In the northern hemisphere, during deceleration following a landing in an Easterly direction, the magnetic compass will indicate :Correct answer : an apparent turn to the South.
In the Northern hemisphere, during deceleration following a landing in a Westerly direction, the magnetic compass will indicate :Correct answer : an apparent turn to the South.
In the Northern Hemisphere, a magnetic compass will normally indicate a turn towards North if:Correct answer : An aircraft is accelerated while on an east or west heading.
In the Northern Hemisphere, a magnetic compass will normally indicate a turn towards North ifCorrect answer : an aircraft is accelerated while on an east or west heading.
In the event of a conflict, the TCAS (Traffic Collision Avoidance System) will give information such as :Correct answer : climb/descent
In the building principle of a gyroscope, the best efficiency is obtained through the concentration of the mass :Correct answer : on the periphery and with a high rotation speed.
In the automatic trim control system of an autopilot, automatic trimming is normally effected about the :Correct answer : pitch axis only.
In the air-tight instrument case of the airspeed indicator we will find:Correct answer : Static pressure.
In some configurations, modern aircraft do not respect the regulatory margins between stall and natural buffet. The warning system supplies the corresponding alarm. The required margin related to the stall speed is:Correct answer : 5%
In order to measure temperature the cylinder head temperature gauge utilises a:Correct answer : thermocouple consisting of dissimilar metals.
In order to measure temperature the cylinder head temperature (CHT) gauge utilises a :Correct answer : thermocouple consisting of two dissimilar metals.
In order to know in which mode the autothrottles are engaged, the crew will check the:Correct answer : PFD (primary flight display).
In order to know in which mode the autothrottles are engaged, the crew will check the :Correct answer : PFD (Primary Flight Display)
In order to align a strapdown inertial unit, it is required to insert the local geographical coordinates. This is necessary to:Correct answer : Position the computing trihedron with reference to earth.
In order that DC generators will achieve equal load sharing when operating in parallel, it is necessary to ensure that :Correct answer : their voltages are almost equal.
In low altitude radio altimeters, the reading is zero when main landing gear wheels are on the ground. For this, it is necessary to:Correct answer : account for signal processing time in the unit and apply a correction factor to the reading.
In low altitude radio altimeters, the height measurement (above the ground) is based upon:Correct answer : a frequency modulation wave, for which the frequency variation between the transmitted wave and the received wave after ground reflection is measured.
In computer technology, an output peripheral is a:Correct answer : screen unit
In computer technology, an input peripheral is a:Correct answer : keyboard
In computer technology, a storage peripheral is a:Correct answer : hard disk drive
In case of accidental closing of an aircraft's left static pressure port (rain, birds), the altimeter:Correct answer : overreads the altitude in case of a sideslip to the left and displays the correct information during symmetric flight.
In automatic landing mode, when the 2 autopilots are used, the system is considered:Correct answer : "fail passive" or without failure effect but with disconnection.
In automatic landing mode, in case of failure of one of the two autopilots, the system is considered:Correct answer : "fail passive" or without failure effect but with disconnection.
In an Inertial Navigation System (INS), the main causes of Cumulative Track errors areCorrect answer : initial azimuth misalignment of the platform and wander of the azimuth gyro.
In an Inertial Navigation System (INS), the main causes of Cumulative Distance errors areCorrect answer : wander in the levelling gyros and integrator errors in the second stage of integration.
In an engine vibration monitoring system for a turbojet any vibration produced by the engine is :Correct answer : amplified and filtered before being fed to the cockpit indicator.
In an average or heavy weight transport airplane, generally, the fuel quantity is measured by "capacitor" gauges because these give : 1- indications partly independent of fuel temperature variations 2- indications almost independent of the airplane's attitude and accelerations 3- indications expressed in density The combination regrouping all the correct statements is:Correct answer : 1, 2
In an auto-pilot slaved powered control circuit, the system which ensures synchronisation :Correct answer : can itself, when it fails, prevent the automatic pilot from being engaged.
In an alternator rotor coil you can find :Correct answer : DC.
In An Air Data Computer (ADC), aeroplane altitude is calculated from:Correct answer : Measurement of absolute barometric pressure from a static source on the fuselage
In aeronautics, the most commonly used batteries are NiCd because...Correct answer : they weigh less than lead-acid batteries.
In accordance with (ICAO) Annex 6 part I, the flight data recorder is to be located in the aircraft :Correct answer : as far to the rear as practicable
In a vacuum operated attitude indicator, automatic erection of the gyro is performed byCorrect answer : the pendulous unit
In a Turn-indicator, the measurement of rate-of-turn consists for :Correct answer : low bank angles, in measuring the yaw rate
In a turn indicator, the measurement of rate of turn consists for:Correct answer : low bank angle, in measuring the yaw rate
In a turn at constant rate, the turn indicator reading is:Correct answer : inversely proportional to the aircraft true airspeed
In a transport airplane, an autopilot comprises, in addition to the mode display devices, the following fundamental elements : 1- Airflow valve 2- Sensors 3- Comparators 4- Computers 5- Amplifiers 6- Servo-actuators The combination regrouping all the correct statements is:Correct answer : 2, 3, 4, 5, 6
In a steep turn, the northerly turning error on a magnetic compass on the northern hemisphere is:Correct answer : equal to 180° on a 090° heading in a right turn.
In a standard atmosphere and at the sea level, the calibrated airspeed (CAS) is :Correct answer : equal to the true airspeed (TAS).
In a Slaved Gyro Compass System the output of the flux-valve is fed to:Correct answer : the stator in the slaved gyro control.
In a selected axis capture mode, the autopilot gives a bank attitude input :Correct answer : proportional to the deviation between the selected heading and the current heading but not exceeding a given value.
In a non-pressurized aircraft, if one or several static pressure ports are damaged, there is an ultimate emergency means for restoring a practically correct static pressure intake :Correct answer : breaking the rate-of-climb indicator glass window
In a modern airplane equipped with an ECAM (Electronic centralized aircraft monitor), when a failure occurs in a circuit, the centralized flight management system: 1- releases an aural warning 2- lights up the appropriate push-buttons on the overhead panel 3- displays the relevant circuit on the system display 4- processes the failure automatically The combination regrouping all the correct statements is:Correct answer : 1, 2, 3.
In a mechanical oil pressure gauge the sensing element isCorrect answer : a bourdon tube
In a 3-phase synchronous motor type tachometer indicator : 1- the transmitter is a direct current generator 2- the voltage is proportional to the transmitter drive speed 3- the frequency is proportional to the transmitter drive speed 4- the speed indicating element is a galvanometer 5. the speed indicating element is an asynchronous motor driving a magnetic tachometer The combination regrouping all the correct statements is:Correct answer : 3, 5
Immediately after starting engine(s) with no other electrical services switched on, an ammeter showing a high charge rate to the battery :Correct answer : would be normal and is only cause for concern if the high charge rate persists.
If, when correcting an EAS value of 150 Kt, a TAS value of 146 Kt is obtained:Correct answer : the density of the atmosphere must be greater than the ISA mean sea level air density.
If two constant frequency AC generators are operating independently, then the phase relationship of each generator:Correct answer : is unimportant.
If the tanks of your airplane only contain water, the capacitor gauges indicate:Correct answer : a mass of water different from zero, but inaccurate.
If the static source to an altimeter becomes blocked during a climb, the instrument will:Correct answer : continue to indicate the reading at which the blockage occured
If the static source to an airspeed indicator (ASI) becomes blocked during a descent the instrument will:Correct answer : over-read
If the static source of an altimeter becomes blocked during a descent the instrument will:Correct answer : continue to display the reading at which the blockage occurred.
If the static source of an altimeter becomes blocked during a descent the instrument will:Correct answer : continue to display the reading at which the blockage occured
If the pitot tube is clogged, which instrument(s) is/are affected?Correct answer : Airspeed indicator only.
If the outside temperature at 35 000 feet is -40°C, the local speed of sound is :Correct answer : 596 kt.
If the GPWS (Ground Proximity Warning System) activates, and alerts the pilot with an aural warning "DON'T SINK" (twice times), it is because :Correct answer : during take-off or missed approach manoeuvre, the aircraft has started to loose altitude.
If the frequency of the supply in a series capacitive circuit is increased, the current flowing in the circuit will :Correct answer : increase.
If the CH = 220°, var. = E12, dev. = W2, what is the corresponding TH?Correct answer : TH = 230°
If the ambient temperature decreases, the TAS of an aircraft cruising at a constant Mach number will:Correct answer : decrease because local speed of sound decreases
If the alternate static source is used, the resulting reading will be:Correct answer : Too high reading of altitude.
If one of the 12 cells of a lead-acid battery is dead, the battery:Correct answer : is unserviceable.
If indicated airspeed is corrected for a positive error, the resulting calibrated airspeed will be:Correct answer : Lower.
If an aircraft is flying (with flaps and landing gear retracted) in proximity to terrain and its GPWS (Ground Proximity Warning System) get activated, because it is detecting that the aeroplane has an excessive rate of descent, the system provides the following aural warning signals :Correct answer : ...SINK RATE, SINK RATE ... followed by ... WHOOP WHOOP PULL UP ... (twice)
If an aircraft is equipped with one altimeter which is compensated for position error and another altimeter which is not, and all other factors being equal:Correct answer : at high speed, the non compensated altimeter will indicate a higher altitude.
If a pilot cannot comply with a holding pattern the aircraft Commander should:Correct answer : inform ATC and request an alternative clearance
If a manifold pressure gauge consistently registers atmospheric pressure, the cause is probablyCorrect answer : leak in pressure gauge line.
If a current is passed through a conductor which is positioned in a magnetic field :Correct answer : a force will be exerted on the conductor.
If a 180º steep turn is made to the right and the aircraft is rolled out to straight and level flight by visual reference, the miniature aircraft on the Attitude Indicator will ...Correct answer : show a slight climb and turn to the left
How many hours or days would you have to spend in a clinic or hospital before you would have to inform the authorities ?Correct answer : 12 hours
How many diaphragms are present in a basic Mach meter?Correct answer : Two.
How is vacuum provided for the air-driven gyro instruments?Correct answer : By an engine-driven pump
How does lag error in an Instantaneous VSI (IVSI) compare to that in a normal VSI?Correct answer : It is virtually eliminated by using an acceleration pump.
How can spatial disorientation in IMC be avoided? ByCorrect answer : maintaining a good instrument cross check.
High intensity obstacle lights should be:Correct answer : Flashing white.
Heading information given by a gyro platform, is given by a gyro at:Correct answer : 2 degrees of freedom in the horizontal axis.
Heading information given by a gyro platform, is given by a gyro at :Correct answer : 2 degrees-of-freedom in the horizontal axis
Heading information from the gyromagnetic compass flux gate is transmitted to the :Correct answer : error detector.
Given : M is the Mach number Ts is the static temperature Tt is the total temperatureCorrect answer : Ts = Tt /(1+0.2. M²)
Given : - Ts the static temperature (SAT) - Tt the total temperature (TAT) - Kr the recovery coefficient - M the Mach number The total temperature can be expressed approximately by the formula :Correct answer : Tt = Ts(1+0.2 M²)
Generator paralleling through busbars is done to assure thatCorrect answer : different consumers can be fed from different sources.
Fuses are rated to a value by :Correct answer : the number of amperes they will carry.
From a flight mechanics point of view, the "guidance" functions of a transport airplane autopilot consist in:Correct answer : monitoring the movements of the centre of gravity in the three dimensions of space (path).
For weather radar, the frequency 9375 MHz in X Band is preferable to C Band because:Correct answer : It better detects clouds contour and range is greater with the same transmission power.
For this question use chart AT(H/L) 1: What are the average magnetic course and distance between position N6000 W02000 and Sumburg VOR (N5955 W 00115)?Correct answer : 105° - 562 NM
For most radio altimeters, when a system error occurs during approach the ..Correct answer : Height indication is removed
For capturing and keeping a preselected magnetic heading, the flight director computer takes into account: 1- track deviation 2- rate of track closure 3- rate of change of track closure 4- wind velocity given by the inertial reference unit The combination regrouping all the correct statements is :Correct answer : 1,2,3
For an aircraft flying a true track of 360° between the 005°S and 005°N parallels, the precession error of the directional gyro due to apparent drift is equal to:Correct answer : 0°/hour
For a constant Calibrated Airspeed (CAS) and a level flight, a fall in ambient temperature will result in a:Correct answer : lower True Airspeed (TAS) due to an increase in air density
Following 180° stabilized turn with a constant attitude and bank, the artificial horizon indicates :Correct answer : attitude and banking correct
Flight recorder duration must be such that flight data, cockpit voice and sound warnings may respectively be recorded during at least:Correct answer : 25 hours for flight data, 30 minutes for cockpit voices and warnings horns.
Flight Director Information supplied by an FD computer is presented in the form of command bars on the following instrument:Correct answer : ADI Attitude Display Indicator.
Failure of the electrical supply to an electrically driven direction indicator may be indicated by:Correct answer : A red warning flag.
Except for airplanes under 5.7T (airworthiness certificate of which is subsequent to 31 march 1998), a flight data recording system must be able to store the recorded data for at least:Correct answer : 25 hours.
Except for airplanes under 5,7 t airworthiness certificate of which is subsequent to 31 march 1998, a flight data recording system must be able to store the recorded data for a minimum of the last :Correct answer : 25 hours.
Erection systems are provided for the purpose of:Correct answer : Erecting and maintaining the gyro in its vertical position.
Electrical bonding of an aircraft is used to: 1. protect the aircraft against lightning effects. 2. reset the electrostatic potential of the aircraft to a value approximating 0 volt 3. reduce radio interference on radiocommunication systems 4. set the aircraft to a single potential The combination regrouping all the correct statements is:Correct answer : 1, 3, 4
During the approach, a crew reads on the radio altimeter the value of 650ft. This is an indication of the true:Correct answer : height of the lowest wheels with regard to the ground at any time.
During the approach, a crew reads on the radio altimeter the value of 650 ft. This is an indication of the true:Correct answer : height of the lowest wheels with regard to the ground at any time.
During deceleration following a landing in northerly direction, the magnetic compass will indicate:Correct answer : no apparent turn.
During deceleration following a landing in Northerly direction, the magnetic compass will indicate :Correct answer : no apparent turn.
During deceleration following a landing in a Southerly direction, the magnetic compass will indicate :Correct answer : no apparent turn.
During an automatic landing, from a height of about 50 ft the:Correct answer : autopilot maintains an angle of attack depending on the radio altimeter height.
During an automatic landing, from a height of about 50 ft the:Correct answer : autopilot maintains a vertical speed depending on the radio altimeter height.
During an acceleration phase at constant attitude, the resetting principle of the artificial horizon results in the horizon bar indicating a :Correct answer : nose-up attitude
During a straight and uniform climb, the pilot maintains a constant calibrated airspeed (CAS) :Correct answer : The Mach number increases and the true airspeed (TAS) increases.
During a climb after take-off from a contaminated runway, if the total pressure probe of the airspeed indicator is blocked, the pilot finds that indicated airspeed :Correct answer : increases steadily
During a Category II automatic approach, the height information is supplied by the :Correct answer : radio altimeter.
Different pressure sensors are used according to the intensity of the pressure measured (low, medium or high) Classify the following sensors by order of increasing pressure for which they are suitable : 1- bellows type 2- Bourdon tube type 3- aneroid capsule typeCorrect answer : 3,1,2
Deviation compensation in a flux gate compass is done:Correct answer : Mechanically
Considering the maximum operational Mach number (MMO) and the maximum operational speed (VMO), the captain of a pressurized aircraft begins his descent from a high flight level. In order to meet his scheduled time of arrival, he decides to use the maximum ground speed at any time of the descent. He will be limited :
Correct answer : initially by the MMO, then by the VMO below a certain flight level
Connecting two 12 volt 40 ampere-hour capacity batteries in series will result in a total voltage and capacity respectively of :Correct answer : 24 volts, 40 ampere-hours.
Concerning the TCAS (Traffic Collision Avoidance System) :Correct answer : No protection is available against aircraft not equipped with a serviceable SSR transponder
Concerning magnetic compasses, deviation is:Correct answer : The angular difference between magnetic North and compass North.
Complete the following statement: .... radio signals have a .... range by ..... wave over.... than over .....Correct answer : MF, greater, ground, sea, land.
Compared with a conventional gyro, a laser gyro :Correct answer : has a longer life cycle
Cockpit voice recorders shall record the following:Correct answer : All speech and sound in cockpit, signals from radionavigation aids and radio communication.
Circuit breakers protecting circuits may be :Correct answer : used in AC and DC circuits.
Before transmitting the pilot should...:Correct answer : Listen out on the frequency to ensure no interference with another station already transmitting will occur.
Because of the input/output relationship of an OR gate, it is often referred to as the :Correct answer : "any or all" gate.
Because of the input/output relationship of an AND gate, it is often referred to as the :Correct answer : "all or nothing" gate.
Batteries are rated in :Correct answer : Amperes.hours.
At sea level, on a typical servo altimeter, the tolerance in feet from indicated must not exceed :Correct answer : +/-60 feet
At a low bank angle, the measurement of rate-of-turn actually consists in measuring the :Correct answer : yaw rate of the aircraft
At a constant Mach number, the calibrated air speed (CAS) :Correct answer : decreases when the altitude increases
At a constant calibrated airspeed (CAS), the Mach number :Correct answer : increases when the altitude increases
As regards three-phase AC generators, the following conditions must be met for paralleling AC generators: 1. Equal voltage 2. Equal current 3. Equal frequencies 4. Same phase rotation 5. Voltages of same phase The combination regrouping all the correct statements is :Correct answer : 1, 3, 4, 5
As regards the Generator Contol Unit (GCU) of an AC generator, it can be said that: 1. The GCU controls the AC generator voltage 2. Modern GCUs are provided with a permanent indication to record the failure 3. All the commands originating from the control panel are applied via the GCU, except dog clutch release 4. The Auxiliary Power Unit (APU) provides the excitation of the AC generator as soon as the APU starts up The combination regrouping all the correct statements is :Correct answer : 2, 3
As an airplane climbs higher, the true airspeed for a given indicated airspeed will:Correct answer : Increase.
Apparent drift in a direction indicator isCorrect answer : 7 1/2°/hour at 30°N and 30°S, and zero at the equator
An autopilot is selected "ON" in mode "altitude hold," the pilot alters the barometric pressure set on the sub-scale of his altimeter the:Correct answer : aircraft will remain at the same altitude, the autopilot takes its pressure information from the static source
An autopilot capable of holding at least altitude and heading mode is compulsory:Correct answer : for IFR or night flights with only one pilot.
An automatic pilot is a system which can ensure the functions of:Correct answer : piloting and guidance of an aircraft in both the horizontal and vertical planes.
An automatic landing system which can keep on operating without deterioration of its performances following the failure of one of the autopilots is called:Correct answer : Fail OPERATIONAL.
An automatic landing system necessitating that the landing be continued manually in the case of a system failure during an automatic approach is called:Correct answer : Fail PASSIVE.
An automatic landing system necessitating that the landing be continued manually in the case of a system failure during an automatic approach is called FAIL ....Correct answer : PASSIVE
An automatic landing is carried out when the automatic pilot :Correct answer : and the autothrottle ensure a correct final approach, at least up to ground roll
An airplane is in steady descent. The autothrottle maintains a constant Mach number. If the total temperature remains constant, the calibrated airspeed:Correct answer : increases.
An airplane is in steady descent while the autothrottle maintains a constant calibrated airspeed. If the total temperature remains constant, the Mach-number:Correct answer : decreases.
An airplane is in steady cruise at flight level 290. The autothrottle maintains a constant Mach number. If the total temperature increases, the calibrated airspeed:Correct answer : remains constant.
An airplane is in steady cruise at flight level 290. The autothrottle maintains a constant Mach number. If the total temperature decreases, the calibrated airspeed:Correct answer : remains constant.
An aircraft takes-off on a runway with an alignment of 045°. The isogonic line on the area chart indicates 0°. The compass deviation is O°. On a take-off with zero wind, the northerly turning error:Correct answer : is such that the compass will indicate a value noticeably below 045°.
An aircraft is in level flight at FL100 over a mountain range, which extends up to 2.400 metres AMSL. If the regional QNH is 998 hPa (use 30 ft/hPa), what is the approximate terrain clearance?Correct answer : 1.681 feet
An aircraft is flying at an TASof 310 Kt at FL290, temperature deviation is -6º C. The local speed of sound is:Correct answer : 583 Kt
An aircraft is flying at a 120 kt true airspeed (VV), in order to achieve a rate 1 turn, the pilot will have to bank the aircraft at an angle of:Correct answer : 18°.
An aircraft electrical circuit which uses the aircraft structure as a return path to earth, may be defined as aCorrect answer : single pole circuit.
An airborne instrument, equipped with a gyro with 2 degrees of freedom and a horizontal spin axis is:Correct answer : a directional gyro
An airborne instrument, equipped with a gyro with 2 degrees of freedom and a horizontal spin axis is :Correct answer : a directional gyro
An Air Data Computer (ADC) :Correct answer : Transforms air data measurements into electric impulses driving servo motors in instruments
An aeroplane is in steady descent. The autothrottle maintains a constant calibrated airspeed. If the total temperature remains constant, the Mach number:Correct answer : decreases.
An aeroplane is in steady cruise at flight level 270. The autothrottle maintains a constant calibrated airspeed. If the total temperature increases, the Mach number :Correct answer : remains constant.
An aeroplane is in steady cruise at flight level 270. The autothrottle maintains a constant calibrated airspeed. If the total temperature decreases, the Mach number:Correct answer : remains constant.
An aeroplane is in steady climb. The autothrottle maintains a constant calibrated airspeed. If the total temperature remains constant, the Mach number :Correct answer : increases.
An aeroplane is in a steady climb. The autothrottle maintains a constant Mach number. If the total temperature remains constant, the calibrated airspeed :Correct answer : decreases.
An aeroplane is equipped with a Flight Director (with crosshair trend bars), heading 270°, in HDG mode (heading hold). A new heading, of 360°, is selected the vertical trend bar :Correct answer : deviates to the right and will be centred as soon as you roll the aircraft to the bank angle calculated by the flight director.
An "intruding traffic advisory" is represented on the display system of the TCAS 2 (Traffic Collision Avoidance System) by displaying :Correct answer : a yellow full circle.
An "altitude warning system" must at least warn the crew : 1- when approaching the pre-selected altitude 2- when the airplane is approaching the ground too fast 3- in case of a given deviation above or below the pre-selected altitude (at least by an aural warning) 4- in case of excessive vertical speed 5- when approaching the ground with the gear retracted The combination regrouping all the correct statements is :Correct answer : 1, 3
Among the systematic errors of the "directional gyro", the error due to the earth rotation make the north reference turn in the horizontal plane. At a mean latitude of 45°N, this reference turns by...Correct answer : 10.5°/hour to the right.
Among the following functions of an autopilot, those related to the airplane stabilization are: 1- pitch attitude holding 2- horizontal wing holding 3- displayed heading or inertial track holding 4- indicated airspeed or Mach number holding 5- yaw damping 6- VOR axis holding The combination regrouping all the correct statements is:Correct answer : 1, 2 and 5.
Among the following functions of an autopilot, those related to the airplane guidance are: 1- pitch attitude holding 2- horizontal wing holding 3- indicated airspeed or Mach number holding 4- altitude holding 5- VOR axis holding 6- yaw damping The combination regrouping all the correct statements is:Correct answer : 3, 4 and 5.
Among the following engine instruments, the one operating with an aneroid pressure diaphragm is the :Correct answer : manifold pressure gauge.
Among the flight control instruments, the artificial horizon plays an essential part. It uses a gyroscope with: (Note : in this question, the degrees of freedom of a gyro are determined by the number of gimbal rings it comprises.)Correct answer : two degrees of freedom, whose axis is oriented and continously maintained to local vertical by an automatic erecting system.
Among the errors of a magnetic compass, are errors:Correct answer : in North seeking, due to bank angle and magnetic heading
All the last generation aircraft use flight control systems. The flight management system (FMS) is the most advanced system. It can be defined as a:Correct answer : global 3D FMS.
All the last generation aircraft use flight control systems. The Flight Management System (FMS) is the most advanced system ; it can be defined as a:Correct answer : global 3-D Flight Management System
All the anemometers are calibrated according to:Correct answer : St-Venant' formula which takes into account the air compressibility.
Alarms are standardised and follow a code of colours. Those requiring action but not immediately, are signalled by the colour:Correct answer : amber
Air-driven gyro rotors are prevented from spinning too fast by theCorrect answer : vacuum relief valve
Aircraft with pressurized cabine in flight: When switching to the alternate static pressure source, the pointer of the Vertical Speed Indicator :Correct answer : indicates a climb, then settles down and reads incorrectly.
After an aircraft has passed through a volcanic cloud which has blocked the total pressure probe inlet of the airspeed indicator, the pilot begins a stabilized descent and finds that the indicated airspeed :Correct answer : decreases steadily
According to the JAR-OPS regulations, the Cockpit Voice Recorder of a 50 seat multi-engined aircraft, having been granted an airworthiness certificate after 1st April 1998, shall start recording :Correct answer : Automatically prior to the aircraft moving under its own power until flight completion when the aircraft is no longer able to move under its own power.
According to the JAR-OPS regulations, the Cockpit Voice Recorder of a 50 seat multi-engined aircraft having been granted the airworthiness certificate after 1st April 1998 will record: 1- the radiotelephonic communications transmitted or received by the cockpit crew 2- the audio environment of the cockpit 3- the cabin attendants communications in the cabin via the interphone 4- the flight crew members communications in the cockpit via the interphone 5- the flight crew members communications in the cockpit via the public address system 6- the audio signals identifiying the navigation or approach aids The combination regrouping the correct statements is:Correct answer : 1,2,4,5,6
Absolute pressure isCorrect answer : measured from zero pressure (vacuum)
A VMO-MMO warning device consists of an alarm connected to :
Correct answer : a barometric aneroid capsule subjected to a static pressure and an airspeed sensor subjected to a dynamic pressure.
A vibration indicator receives a signal from different sensors (accelerometers). It indicates the :Correct answer : vibration amplitude at a given frequency
A unit that converts electrical DC into AC is :Correct answer : an inverter.
A turn indicator is built around a gyroscope with:Correct answer : 1 degree of freedom.
A turn indicator is an instrument which indicates rate of turn. Rate of turn depends upon : 1 : bank angle 2 : aeroplane speed 3 : aeroplane weight The combination regrouping the correct statements is :Correct answer : 1 and 2.
A transport airplane is compelled to carry on board a Ground Proximity Warning System (GPWS). This system will warn the crew in case of : 1 - keeping the altitude at a lower level than the one shown in the flight plan entered in the FMS. 2 - dangerous ground proximity. 3 - loss of altitude during take-off or missed approach. 4 - wrong landing configuration. 5 - descent below glidepath, within limits. The combination regrouping all the correct statements is :Correct answer : 2,3,4,5
A transport airplane has to be equipped with an altitude warning device. This system will warn the crew about : 1 - getting close to the preselected altitude, during both climb and descent. 2 - getting close to the preselected altitude, during climb only. 3 - the loss of altitude during take-off or missed approach. 4 - a wrong landing configuration. 5 - a variation higher or lower than a preselected altitude. The combination regrouping the correct statements is:Correct answer : 1,5
A transformer with 2400 windings on the primary coil shall give 28 VAC output from the secondary coil when 115 VAC is connected to the primary coil. How many windings are needed on the secondary coil ?Correct answer : 585 windings.
A thermocouple type thermometer consists of:Correct answer : two metal conductors of different type connected at one point.
A thermocouple can be made of:Correct answer : two metal conductors of different nature fixed together at two points.
A temperature sensor having a recovery factor of 0.75 indicates 30° C. Static Air Temperature (SAT) is 25° C. How high is the Ram-rise?Correct answer : 5° C.
A synchroscope is used on aircraft to:Correct answer : set several engines to the same speed.
A static inverter is a:Correct answer : transistorized unit used to convert DC into AC.
A Stand-by-horizon or emergency attitude indicator:Correct answer : Contains its own separate gyro
A stall warning system is based on a measure of :Correct answer : aerodynamic incidence.
A slaved directional gyro derives it's directional signal from :Correct answer : the flux valve.
A semi-automatic landing system disconnects itself automatically:Correct answer : at approximately 100 ft.
A resolution advisory is represented on the display system of the TCAS 2 by a:Correct answer : red full square.
A remote indicating compass has usually less deviation error than a panel mounted compass because:Correct answer : it is normally mounted in a part of the airplane where magnetic interference is minimal.
A relay is :Correct answer : a magnetically operated switch.
A relay is :Correct answer : An electromagnetically operated switch.
A rectifier is a unit thatCorrect answer : produces a DC output from AC input.
A rate integrating gyro is a detecting element used in 1. An inertial attitude unit 2. An automatic pilot 3. A stabilizing servo system 4. An inertial navigation system 5. A rate-of-turn indicator The combination of correct statements is :Correct answer : 1,4.
A radio altimeter can be defined as a:Correct answer : self contained on board aid used to measure the true height of the aircraft.
A radio altimeter can be defined as a :Correct answer : self-contained on-board aid used to measure the true height of the aircraft
A pitot tube covered by ice which blocks the ram air inlet will affect the following instrument (s) :Correct answer : airspeed indicator only.
A pitot blockage of both the ram air input and the drain hole with the static port open causes the airspeed indicator to :Correct answer : react like an altimeter.
A pilot wishes to turn right on to a southerly heading with 20° bank at a latitude of 20° North. Using a direct reading compass, in order to achieve this he must stop the turn on an approximate heading of :Correct answer : 210°
A pilot wishes to turn right on to a northerly heading with 20° bank at a latitude of 40° North. Using a direct reading compass, in order to achieve this he must stop the turn on to an approximate heading of :Correct answer : 330°
A pilot wishes to turn left on to a southerly heading with 20° bank at a latitude of 20° North. Using a direct reading compass, in order to achieve this he must stop the turn on an approximate heading of :Correct answer : 160°
A pilot wishes to turn left on to a northerly heading with 10° bank at a latitude of 50° North. Using a direct reading compass, in order to achieve this he must stop the turn on an approximate heading of :Correct answer : 030°
A pilot has to carry out a single-pilot IFR flight on a light twin-engined aircraft for cargo transport. The purpose of the automatic pilot is at least to hold the:Correct answer : heading and to hold the altitude
A pilot has to carry out a single pilot IFR flight on a light twin aircraft for cargo transport. The purpose of the automatic pilot should be at least to hold:Correct answer : heading and altitude.
A pilot engages the control wheel steering (CWS) of a conventional autopilot and carries out a manoeuvre in roll. When the control wheel is released, the autopilot will :Correct answer : maintain the flight attitude obtained at that moment.
A paddle-wheel placed in a the fuel circuit of a gas turbine engine initially measures:Correct answer : volumetric flow by a tally of the impulses
A millivoltmeter measuring the electromotive force between the "hot junction" and the "cold junction" of a thermocouple can be directly graduated in temperature values provided that the temperature of the:Correct answer : cold junction is maintained constant.
A manifold pressure gauge of a piston engine measures :Correct answer : absolute pressure in intake system near the inlet valve.
A magnetic circuit-breaker is:Correct answer : a protection system that has a quick tripping response.
A leak in the pitot total pressure line of a non-pressurized aircraft to an airspeed indicator would cause it to:Correct answer : under-read.
A laser gyro consists of :Correct answer : a laser generating two light waves
A landing will be considered to be performed in the SEMI-AUTOMATIC mode when: 1- the autopilot maintains the airplane on the ILS beam until the decision height is reached then is disengaged automatically. 2- the autothrottle maintains a constant speed until the decision height is reached then is disengaged automatically. 3- the autopilot maintains the airplane on the ILS beam until the flare. 4- the autothrottle decreases the thrust when the height is approximately 30 ft. 5- the flare and the ground roll are performed automatically. The combination regrouping all the correct statements is:Correct answer : 1 and 2.
A landing will be considered to be performed in the AUTOMATIC mode when: 1- the autopilot maintains the airplane on the ILS beam until the decision height is reached then is disengaged automatically. 2- the autothrottle maintains a constant speed until the decision height is reached then is disengaged automatically. 3- the autopilot maintains the airplane on the ILS beam until the flare. 4- the autothrottle decreases the thrust when the height is approximately 30 ft. 5- the flare and the ground roll are performed automatically. The combination regrouping all the correct statements is:Correct answer : 3, 4 and 5.
A landing is performed automatically when the autopilot and auto-throttle ensure good performance from the final approach :Correct answer : during the landing roll and sometimes until the aircraft comes to a complete stop.
A gyromagnetic compass or heading reference unit is an assembly which always consists of : 1- a directional gyro 2- a vertical axis gyro 3- an earth's magnetic field detector 4- an azimuth control 5- a synchronising control The combination of correct statements is :Correct answer : 1,3,5
A ground proximity warning system (GPWS), when mandatorily installed on board an aircraft, must in all cases generate :Correct answer : at least one sound alarm to which a visual alarm can be added
A Ground Proximity Warning System (GPWS) generates automatically a distinct warning to the flight crew with aural and/or light warning signals in the case of: 1- an excessive rate of descent with respect to terrain 2- a dangerous proximity to the ground 3- a loss of altitude following take-off or go-around 4- an abnormal flight attitude 5- an abnormal landing configuration 6- an abnormal deviation below ILS glide slope The combination regrouping all the correct statements is:Correct answer : 1, 2, 3, 5 and 6.
A gravity type erector is used in a vertical gyro device to correct errors on :Correct answer : an artificial horizon
A gravity erector system is used to correct the errors on :Correct answer : an artificial horizon.
A Full Authority Digital Engine Control (FADEC) has the following functions : 1- flow regulation (fuel, decelerations and accelerations monitoring) 2- automatic starting sequence 3- transmissions of engine data to the pilot's instruments 4- thrust management and protection of operation limits 5- monitoring of the thrust reversers The combination regrouping all the correct statements is:Correct answer : 1, 2, 3, 4, 5
A flux valve senses the changes in orientation of the horizontal component of the earth's magnetic field. 1- the flux valve is made of a pair of soft iron bars 2- the primary coils are fed A.C. voltage (usually 487.5 Hz) 3- the information can be used by a "flux gate" compass or a directional gyro 4- the flux gate valve casing is dependent on the aircraft three inertial axis 5- the accuracy on the value of the magnetic field indication is less than 0,5% Which of the following combinations contains all of the correct statements?Correct answer : 2 - 3 - 5
A feeder fault on a direct current circuit results from a flux unbalance between the:Correct answer : voltage coil and the series winding turn.
A failed RMI rose is locked on 090° and the ADF pointer indicates 225°. The relative bearing to the station is :Correct answer : 135°.
A failed RMI rose is locked on 090 degrees and the ADF pointer indicates 225 degrees. In this case the relative bearing to the station is:Correct answer : 135 degrees.
A directional gyro is: 1- a gyroscope free around two axis 2- a gyroscope free around one axis 3- capable of self- orientation around an earth-tied direction 4- incapable of self-orientation around an earth-tied direction The combination which regroups all of the correct statements is:Correct answer : 1 - 4
A current limiter fuse in a DC generation system is used to :Correct answer : allow a short term overload before rupturing.
A CSD unit which has been disconnected in flight :Correct answer : may be reset on the ground only, after engine shut-down.
A Constant Speed Drive aims at ensuringCorrect answer : that the electric generator produces a constant frequency.
A condenser in parallel with breaker points willCorrect answer : intensify current in secondary winding
A component that provides 115 VAC output after an input of 28 VDC is called:Correct answer : An inverter, static or rotary.
A cockpit voice recorder (CVR) will record : 1. the information exchanged by the cabin crew 2. the conversations between the crew members and voice communications transmitted from or received on the flight deck by radio 3. the announcements made via the public address even if it has not been selected 4. the conversations and alarms audible in the cockpit 5. the captain conversations only The combination regrouping all the correct statements is :Correct answer : 2, 4
A closed loop control system in which a small power input controls a much larger power output in a strictly proportionate manner is known as :Correct answer : a servomechanism.
A circuit breaker :Correct answer : may be reset manually after the fault has been rectified.
A bus-bar is :Correct answer : a distribution point for electrical power.
A 3 phase AC generator has 3 separate stator windings spaced at :Correct answer : 120°.
A "TCAS II" (Traffic Collision Avoidance System) provides:Correct answer : the intruder relative position and possibly an indication of a collision avoidance manoeuvre within the vertical plane only.
A "resolution advisory" (RA) is represented on the display system of the TCAS 2 (Traffic Collision Avoidance System) by a :Correct answer : red full square.
A "close traffic advisory" is displayed on the display device of the TCAS 2 (Traffic Collision Avoidance System) by :Correct answer : a blue or white empty lozenge.
A "Bourdon Tube" is used in:Correct answer : pressure sensors
For a capacitor gauge: 1. the fuel dielectric value is half that of air2. the fuel dielectric value varies proportionally to the temperature of the fuel3. the probes are connected in parallel4. fuel dielectric value varies inversely with the fuel level 5. the gauge accuracy is within 2%Correct answer : 3,5
The Total Air Temperature probe measures total temperature (TAT) by:(SAT = Static Air Temperature)Correct answer : TAT = SAT + heating due to compressibility.
Given the following forecast for EHAM, the most likely conditions for an arrival at 0900Z are:EHAM 231043Z 231812 26009KT 4000 BR -DZ SCT006 BKN012 BECMG 1922 2500 BKN004 BECMG 2201 VRB03KT 0800 BCFG BKN003 PROB40 0308 0300 FG VV001 BECMG 0709 3500 BR SCT004 BKN006 BECMG 0912 10008KT 9999 NSW SCT018 SCT025=Correct answer : 3500m in mist, scattered cloud at 400ft., broken at 600ft
JAR 25 operational requirements for the installation of automatic pilot states that the system must have:a. Automatic synchronisationb. Quick release controls on both control wheels.Correct answer : Only statement b is correct.
Which of the following will effect a direct reading compass?1. ferrous metals2. non-ferrous metals3. electrical equipmentCorrect answer : 1 & 3
If a Go-Around is initiated from an auto-approach:1. the auto-throttle selects GA power as soon as the TOGA switch is pressed2. the auto-pilot carries out the climb3. the auto-pilot retracts flap and landing gear to reduce drag4. the pilot carries out the procedure 5. the pilot cleans upCorrect answer : 1, 2 & 5
The Turn Indicator is a useful gyroscopic instrument. When used in association with an attitude indicator will show:1. angular velocity about the yaw axis2. direction of turn3. angular velocity about true vertical axis4. speed of turnCorrect answer : 2 & 3
The principles used in an electrical RPM indicating system are:1. Tacho probe and phonic wheel2. DC generator producing AC3. 3. phase AC generator driving a 3 phase AC motor4. Single phase AC generator driving a single phase AC motorCorrect answer : 1 and 3
Which of the following are used to measure temperature in a modern passenger aircraft:1. Thermocouple2. Resistance3. Reactance4. MercuryCorrect answer : 1 & 2
What are the components of a CVR1 Microphone2 Crash/Fire resistant construction3 Independent battery4 A Flight data recorderCorrect answer : 1&2
In heading select the auto-pilot delivers roll commands to the controls to bank the aircraft:
1. proportional to TAS, but not beyond a specified maximum.2. Set bank of 27 degrees.3. Set bank of 15 degrees.4. Proportional to the deviation from the selected headingCorrect answer : 4&1
Given:M: Mach numberTs: static temperatureTt: total temperatureWhich of the following statements is correct ?Correct answer : Ts = Tt / (1+0.2M²)
TCAS II obtains information from:1. Pressure encoding from mode S transponder2. Radio altimeter3. Aircraft specific configurations4. Inertial reference unit (IRU)Correct answer : 1, 2, 3, & 4
To measure the fuel quantity on a heavy aircraft we use:1-capacitor gauges2-electric gauges with round floats3-the indication can directly be indicated as a mass4-the indication can not be indicated as a massCorrect answer : 1,3
Which of the following are used to measure temperature in a modern passenger aircraft:1. Thermocouple2. Resistance3. Reactance4. MercuryCorrect answer : 1 & 2
What is the purpose of the synchronisation in an auto-pilot.1. Prevents snatch on disengagement.2. Prevents snatch on engagement.3. Cancels rudder control inputs.4. May not allow the auto-pilot to engage if unserviceable.Correct answer : 2 & 4
For a capacitor gauge:1. the fuel dielectric value is half that of air2. the fuel dielectric value varies proportionally to the temperature of the fuel3. the probes are connected in parallel4. fuel dielectric value varies inversely with the fuel level 5. the gauge accuracy is within 2%Correct answer : 3,5
Regarding auto-pilot and auto-throttle:1. A/P holds IAS/MACH when climbing in LVL CHG and A/T controls thrust.2. A/P holds altitude in cruise with ALT HOLD, A/T controls IAS/Mach No.3. A/P holds pitch in descent in V/S mode, A/T controls thrust.4. A/P holds altitude in climb and A/T holds Mach No.Correct answer : 1 & 2
The advantages of an ADC over a traditional pitot - static system are:1. position and compressibility correction.2. reduced lag3. ability to supply many instruments4. ability to act as an altimeter following failure.Correct answer : 1, 2 & 3
What does a FDR record when combined with a CVR?1. Cockpit voice2. Radio3. Public addresses from the cockpit4. Cabin voiceCorrect answer : 1, 2 & 3
The auto throttle system is:1. able to catch and maintain the N1 RPM.2. able to catch and maintain the N2 RPM.3. able to catch and maintain an airplane indicated airspeed IAS.4. always engaged automatically at the same time as the autopilot.The combination regrouping all the correct statements is:Correct answer : 1 and 3.
At the missed approach point the TOGA switch on the throttles is depressed. Which of the following statements are correct:
1. Pilot selects maximum power2. Auto-throttle selects GA power3. Aircraft automatically cleans up.4. Auto-pilot flies the GA manually5. Pilot flies the GA manoeuvreCorrect answer : 2 & 4
When turning onto a northerly heading the rose of a magnetic compass tends to undershoot. When turning onto a southerly heading it tends to overshoot.Which of the following statements are true ?1. the compass indications are less reliable in the northern hemisphere than in the southern hemisphere2. the compass indications oscillations following a lateral gust are not identical if the aircraft is heading north or south.3. this behavior is due to the mechanical construction of the compass.4. this behavior is a symptom of badly swung compass.Correct answer : 2 and 3
The advantages of an electrical induction tachometer are:1. The display is not sensitive to line resistance.2. The measurement is independent of aircraft power supply.3. The measurement is independent of temperature variations.4. The option to use without restriction several indicators connected in parallel to a single transmitter.The combination regrouping all the correct statements is:Correct answer : 1, 2 and 4.
A landing is considered to be Automatic when:1. Auto-pilot flies the ILS to Decision Height, and then disengages.2. Auto-throttle maintains speed until Decision Height, and then disengages3. Auto-throttle disengages thrust at 50ft4. Auto-pilot flies the approach and landing5. Auto-pilot flares the aeroplane to touch downCorrect answer : 4 & 5
Given:Ts: the static air temperature (SAT)Tt: the total air temperature (TAT)Kr: the recovery coefficientM: the Mach numberThe total temperature can be expressed by the formula:Correct answer : Tt = Ts(1+0.2 x M²)
The fields affecting a magnetic compass originate from:1. Magnetic masses.2. Ferrous metal masses.3. Non ferrous metal masses.4. electrical currents.The combinations of correct statements is:Correct answer : 1, 2 and 4.
A standby artificial horizon must have the following properties:1. a remote gyro2. its own power supply3. only to be used in emergency4. its own gyro5. one for each certified pilotCorrect answer : 2 & 4
In an auto-pilot system, a/c flight path modes include which of the following:1.Pitch attitude holding.2.Horizontal wing holding.3.VOR axis holding.4.Inertial heading holding.5.ASI & Mach hold. 6.Yaw damper.Correct answer : 3, 4 & 5
In a three phase tachometer installation:1. the transmitter is a DC generator2. we measure an EMF proportional to the driving speed of the transmitter3. we measure a frequency proportional to the driving speed of the transmitter4. the receiver is a galvanometer5. the receiver is a synchronised motor driving a magnetic tachometerCorrect answer : 3 & 5
An altitude alerting system must at least be capable of alerting the crew on:1. Approaching selected altitude.2. Excessive deviation from selected altitude.3. Excessive vertical speed.4. Excessive terrain closure.5. Abnormal gear/flap combination
Correct answer : 1&2.
Which of the following are errors of a DGI:1. earth rate2. transport wander3. banking when pitched up4. annual movement of poles5. mechanical problemsCorrect answer : 1, 2, 3, & 5
A rate integrating gyro is used in which of the following:1. inertial attitude unit2. autopilot system3. stabiliser servo mechanism system4. inertial navigation unit5. rate of turn indicatorCorrect answer : 1 & 4
The properties of a gyro are:1. mass2. rigidity3. inertia4. precession5. rotational speedCorrect answer : 2 & 4
Given:Ts: the static air temperature (SAT)Tt: the total air temperature (TAT)Kr: the recovery coefficientM: the Mach numberThe total temperature can be expressed by the formula:Correct answer : Tt = Ts(1+0.2 x M²)
When turning onto a northerly heading the rose of a magnetic compass tends to undershoot. When turning onto a southerly heading it tends to overshoot.Which of the following statements are true ?1. the compass indications are less reliable in the northern hemisphere than in the southern hemisphere2. the compass indications oscillations following a lateral gust are not identical if the aircraft is heading north or south.3. this behavior is due to the mechanical construction of the compass.4. this behavior is a symptom of badly swung compass.Correct answer : 2 and 3
Auto-throttle can hold which of the following:1. IAS2. Mach No3. Altitude.4. N1/EPR.5. VOR capture.6. Vertical profile.Correct answer : 1, 2 & 4
An altitude warning system must at least warn the crew :1. when approaching the preselected altitude.2. when the airplane is approaching the ground to fast.3. in case of a given deviation above or below the preselected altitude (at least by an aural warning).4. in case of excessive vertical speed.5.when approaching the ground with the gear retracted.The combination regrouping all the correct statements is:Correct answer : 1 and 3.
The properties of a Turn Indicator are:1. One degree of freedom2. two degrees of freedom3. two springs connected to the aircraft frame4. spin axis in the longitudinal plane5. spin axis parallel to the yaw axis6. spin axis in the lateral planeCorrect answer : 1, & 6
A landing will be considered to be performed in the semi automatic mode when:1. the autopilot maintains the airplane on the ILS beam until the decision height is reached then is disengaged automatically.2. the auto throttle maintains a constant speed until the decision height is reached then is disengaged automatically.3. the autopilot maintains the airplane on the ILS beam until the flare.4. the auto throttle decreases the thrust when the height is approximately 30ft.5. the flare and ground roll are performed automatically.the combination regrouping all the correct statements is:Correct answer : 1 and 2
The stall warning system of a large transport airplane includes:1. An angle of attack sensor.2. A computer.3. A transmitter originating from the anemometer.4. An independent pitot probe.5. A transmitter of the flap slat position indicating system.The combination regrouping all the correct statements is:Correct answer : 1, 2 and 5.
Auto-throttle can hold which of the following:1. IAS2. Mach No3. Altitude.4. N1/EPR.5. VOR capture.6. Vertical profile.Correct answer : 1, 2 & 4
What are the inputs to the FMS?1. Radio Aids2. Engine Parameters3. Air Data4. Route Data5. Terminal Data6. Operating DataCorrect answer : All of the above
In an auto-flight system, modes for stabilising the a/c include which of the following:1. Yaw damper.2. Pitch attitude holding.3. VOR axis holding.4. ASI & Mach hold.5. horizontal wing holding.6. Altitude holding.Correct answer : 1, 2 & 5
What are the minimum inputs required by the ADC?1. OAT2. dynamic pressure3. TAT4. static pressure5. electric power6. pitot pressure7. AOACorrect answer : 3, 4, 5 & 6
Which of the following are modes of the GPWS?1. Excessive sink rate.2. Altitude loss after T/O or go-around.3. Excessive Glideslope deviation.4. High climb rate.5. Flaps in incorrect position.6. High altitude descent7. StallCorrect answer : 1, 2, 3, & 5
GPWS may indicate (list):1. Excessive sink rate after T/O.2. Excessive descent rate.3. Excessive closure with terrain.4. Ground proximity not in the landing configuration.5. Excessive glide-slope deviation.6. Altitude call-outs7. Bank Angle alertingCorrect answer : All 7
The inputs to the GPWS are:1. air data computer (mach number and vertical speed).2. radio altimeter.3. nav ILS.4. nav VOR5. flap position6. angle of attack7. landing gear position.The combination of correct statements is:Correct answer : 1, 2, 3, 5 and 7.
From the following parameters:The ones that can be used to monitor a gas turbine thrust setting are:EGTEPRFFN1N2Oil pressureFuel pressureCorrect answer : EGT, N1, FF, EPR
Which of the following sequences shows the correct elements of a position report in the correct order?(i) callsign(ii) reported position(iii) heading (ºM)(iv) level or altitude(v) next position(vi) ETA of the next position(vii) aircraft type(viii) time of reported positionCorrect answer : (i) (ii) (viii) (iv) (v) (vi)