aries answers unit 2 (hardware)
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aries answers unit 2 (hardware)TRANSCRIPT
Aries PC Maintenance and Repair: Hardware V8.0
Preview Exam Unit 2 Master
Upped by FanoBliv
Preview Exam Exam Bank: Aries PC Maintenance and Repair: Hardware V8.0 Exam Name: Unit 2 Master # Questions: 40
1. A computer's power supply converts ___________ current to ____________
current.
A. alternating, direct
B. direct, alternating
C. alternating, indirect
D. indirect, alternate
Objective: 6.1 Define a power supply and its function
2. In general, the 3.3V and 5V DC currents supplied by the computer's power
supply are used to power ____________.
A. various fans and system motors
B. the printer
C. the monitor
D. circuitry such as the motherboard, memory, and CPU
Objective: 6.2 Describe power supply fan features
3. To what are the blue lines in the graphic pointing?
A. expansion cards
B. AC/CD converters
C. dust plates
D. capacitors
Objective: 6.3 Distinguish among the features of power supply types
4. Choose the letter sequence that correctly identifies the labeled power supply
components in this order: voltage switch, power on/off switch, power cord
socket, power supply leads
A. A, C, B, D
B. D, B, C, A
C. B, A, C, D
D. A, B, C, D
Objective: 7.1 Identify power supply connectors, sockets, and switches
5. The arrow in the graphic is pointing to a power supply's ___________.
A. small drive connector
B. large drive connector
C. motherboard connector
D. None of these
Objective: 7.1 Identify power supply connectors, sockets, and switches
6. The term "_______" indicates the dimensions and types of features and
design. This applies to a computer's power supply, case, and motherboard.
A. design type
B. size setup
C. form factor
D. component setup
Objective: 6.2 Describe power supply fan features
7. The graphic depicts a power supply's ___________.
A. small drive connectors only
B. large drive connectors only
C. small and large drive connectors
D. None of these
Objective: 7.1 Identify power supply connectors, sockets, and switches
8. The arrow in the graphic is pointing to a power supply's
____________________.
A. optional female socket
B. required female socket
C. optional male socket
D. required male socket
Objective: 7.1 Identify power supply connectors, sockets, and switches
9. The arrow is pointing to the power supply's ___________________.
A. voltage switch
B. remote button switch
C. external lever switch
D. None of these
Objective: 7.1 Identify power supply connectors, sockets, and switches
10. When the rocker-type power on/off switch on the back of the computer is
off, which of the following is true?
A. Only DC power is getting to the power supply
B. No AC power is getting to the power supply
C. The power supply, but not other computer components, receives AC power
D. None of these
Objective: 7.2 Describe the function and features of power supply connectors, sockets, and switches
11. Which form factor type has been the dominant form factor for the last 10+
years?
A. ATX
B. NLXF
C. AT
D. Baby AT
E. Slimline
Objective: 6.2 Describe power supply fan features
12. Which of the following may be attributed to an insufficient or unstable
power supply?
A. booting lock-up
B. spontaneous re-boots
C. long boot-ups
D. All of these
Objective: 8.2 Identify power supply specifications and their features
13. The range of voltage that a computer's power supply can accept from an AC
power source is called the power supply's________________ specification.
A. frequency
B. current
C. total power
D. operating range
Objective: 8.2 Identify power supply specifications and their features
14. Which power supply specification refers to the Hertz (Hz) range within
which a power supply operates?
A. operating range
B. frequency
C. current
D. EMI
Objective: 8.2 Identify power supply specifications and their features
15. All electrically powered computer components generate heat. In order to
keep a computer at safe operating temperatures, ___________ are necessary.
A. AC coolers
B. cooling racks
C. cooling fans
D. temperature modulators
Objective: 8.2 Identify power supply specifications and their features
16. Which specification identifies the power supply's percentage ratio of input
power to output power?
A. Operating range
B. Efficiency
C. Current
D. EMI
Objective: 8.2 Identify power supply specifications and their features
17. To assure that your power supply provides enough power to run every
device on your computer, you need to check the power supply's ________
specification.
A. load regulation
B. line regulation
C. total power
D. output
Objective: 8.1 Explain the importance of power supply specifications
18. Which power supply specification indicates the amps available for each type
of DC voltage?
A. output
B. total power
C. Power_Good Delay
D. operating range
Objective: 8.2 Identify power supply specifications and their features
19. What conductive substance is used to promote improved heat conductivity
between the CPU and heat sink?
A. WD40
B. Heat Dissipator
C. Thermal Compound
D. No conductive substance is needed between the CPU and heat sink.
Objective: 6.3 Distinguish among the features of power supply types
20. Choose the group(s) responsible for assuring power supply compliance with
United States power specification standards.
A. Critical Specifications Association
B. Technical Standards Commission
C. Underwriters Laboratories
D. All of these
Objective: 8.3 Identify agencies responsible for power supply certification
21. A motherboard with the PCI Express interface will require a _______
motherboard power connector.
A. 20 pin
B. P8 & P9
C. 20+4 pin
D. 6 pin PCIe
Objective: 7.2 Describe the function and features of power supply connectors, sockets, and switches
22. Choose the letter sequence that correctly identifies the outlet components
in this order: neutral wire connection, hot wire connection, safety ground
connection
A. A, B, C
B. A, C, B
C. B, A, C
D. C, A, B
Objective: 9.2 Describe electrostatic discharge
23. A large, unexpected increase in electrical current lasting several seconds is
called a ______________.
A. blackout
B. high oscillation
C. power spike
D. power surge
Objective: 9.1 List and define common external power problems
24. An brief, high-powered electrical impulse that produces a sudden voltage
overload, typically lasting between .5 and 100 microseconds, is called a
______________.
A. harmonic distortion
B. high oscillation
C. power spike
D. power surge
Objective: 9.2 Describe electrostatic discharge
25. When electrical voltage falls 80 percent below normal capacity, you are
experiencing a ___________.
A. power sag
B. power outage
C. shallow oscillation
D. None of these
Objective: 9.1 List and define common external power problems
26. A technician is working on a computer that is giving a display error after
bootup. This started happening after a new high power PCIe gaming video card
was installed. What is the most likely cause of this problem?
A. An extra fan needs to be installed due to the heat given off by the new video card.
B. The CPU is too old to work with the video card.
C. The card requires a lithium ion battery that needs to be installed into the
card.
D. The card requires more power from a 6 pin PCIe power connector.
Objective: 7.2 Describe the function and features of power supply connectors, sockets, and switches
27. The small power connector that supplies power to devices such as floppy
drives and logic boards is also known as a __________ connector.
A. Molex
B. 4-hole
C. Berg
D. Standard
Objective: 7.1 Identify power supply connectors, sockets, and switches
28. The large power connector that supplies power to devices such as CD and
DVD drives is also known as a ____________ connector.
A. Berg
B. Plus-size
C. Standard
D. Molex
Objective: 7.1 Identify power supply connectors, sockets, and switches
29. High end motherboards used by servers and powerful workstations will
require an ________ power connector in order power a second processor or
dual processor.
A. 8 pin PCIe
B. 8 pin EPS12V
C. 20+4 pin ATX12V v2.0
D. 4 pin P4 ATX12V
Objective: 7.2 Describe the function and features of power supply connectors, sockets, and switches
30. A ____________ is installed into some PC power supplies to draw power
when no actual device is connected to the power supply. This device allows the
power supply to function during tests when not installed in a computer.
A. multimeter
B. load resistor
C. load stator
D. resistance band
Objective: 6.3 Distinguish among the features of power supply types
31. The remote computer activation feature of an ATX power supply is called
___________.
A. Remote Power
B. Tele Power
C. Power Go
D. Soft Power
Objective: 6.3 Distinguish among the features of power supply types
32. Not all of the electrical power delivered to the power supply (from the wall
outlet)is converted into useable electricity. The electricity that is not converted
into power is __________________.
A. sent back to the wall socket
B. stored in the power supply for later use
C. converted into electrons
D. converted into heat
Objective: 6.3 Distinguish among the features of power supply types
33. What type of computer generated interference can interfere with devices
such as televisions and cordless phones?
A. Radio Fluctuation Interference
B. Electro-Stasis Development
C. Radio Frequency Interference
D. Electro-Static Discharge
Objective: 9.3 Define line noise and explain the problems that this can cause
34. What power event is characterized by a buildup of electrons on a material,
leading to a sudden transfer of those electrons to another material?
A. EMI
B. RFI
C. power surge
D. ESD
Objective: 9.2 Describe electrostatic discharge
35. What is the potential danger when a computer is connected to an
improperly grounded circuit?
A. An electromagnetic discharge may occur
B. A severe electrical shock
C. Too much RFI may be generated
D. Too much EMI may be generated
Objective: 9.2 Describe electrostatic discharge
36. What device protects against power surges?
A. robust hard drive
B. surge protector
C. harmonic dampener
D. Power surges are unstoppable and an unavoidable risk of computing
Objective: 9.3 Define line noise and explain the problems that this can cause
37. A customer that runs a radio station is complaining of intermittent page not
found errors when using the Internet, and occasional problems sending and
receiving data across the network. Which of the following could be causing a
problem?
A. ESD
B. RMI
C. EMI
D. RFI
E. ABS
Objective: 6.2 Describe power supply fan features
38. What is the most likely problem that causes a CPU fan to make noise?
A. Faulty thermostat
B. Bad power supply
C. Worn ball bearings
D. Faulty thermal sensor
Objective: 6.2 Describe power supply fan features
39. What are the advantages to a liquid cooling system?
A. Much more efficient system, higher clock speeds, and increased noise from fan
B. CPU temperature maintained at ambient temperature, normal system
and clock speeds, and reduction of noise
C. More efficient system, higher clock speeds, noise reduction, and maintains CPU temperature at ambient temperature
D. There are no advantages to a liquid cooling system.
Objective: 6.2 Describe power supply fan features
40. What are the disadvantages to a liquid cooling system?
A. Needs a large space in the case, must be custom installed, can cause leaks if improperly installed and injury to installer
B. Needs little to no space, tubes must be precisely cut and installed, and
no damage to system no matter who does the installing
C. Needs the same amount of space as a regular fan, contains no tubes,
and still needs custom installation
D. None of the above
Objective: 6.2 Describe power supply fan features