I.R.I.S.E.T:: SECUNDERABADINITIAL COURSE FOR IRSSE PROBATIONERS, PHASE-1 OBJECTIVE TYPESYLLABUS::- S11, S12 and S13DATE OF EXAMINATION: 10.02.2014 MARKS: 40x 1 = 40 marks

State Clearly- True / False.

Writing of Symbols or usage of T Or F is not allowed. Pl note that Such answers will not be evaluated.

1 ASWR is separate for each point

2 In RRI`s, after a route is set making a point normal , it`s NCR continues in Pick Up condition

3 WWR of a Pt picks up even if it is not required to be operated

4 NCR picks up even when manual operation of a point is done to make it normal in route setting typeckts.

5 When any of the back lock track circuit of a Home signal fails, it`s ASR can be picked up by doingroute cancellation (i.e using JSLR, NJPR relay contacts)

6 In HR pick up path of in route setting type, GNR`s front contact is proved

7 In point NLR / RLR ckt (in route setting type ckts), conflicting route`s NNR Front contact is proved.

8 In route setting type, as soon as a Point`s NCR picks up, it`s NWLR drops.

9 NNR relay once dropped, it can pick up through NRR back contact and ASR front contacts.

Fill Up blanks

10 WWFR relays _____ contact is used in the pick up path of AS1WR

11 _________No of repeaters can be picked up with one front contact

12 ____ Contacts of JSLR & ___contacts of UYRs are used in HR ckts

13 In case of electro mechanical yards, _______________ band is used in UYR circuits.

14 _____ relay`s _____ contact De-energises all UYR relays

15 (B)L coil is equivalent to ______________relay in electrical signaling circuits.

16 CHLR relay`s _____ contact & CHFR relay`s ________ contacts are used in HR Pick up path

17 In case of dead approach locking, route will be released after ______________ min.

18 _______relay`s _______ contact first breaks the path of WNKR relay

19 In case LC GATE is closed and locked against road traffic _____________ front, _________ backRELAY CONTACTS are used.

20, Give example for heavy duty relays in point operation ____________

21 HR Relay has ____relay`s _____contact for cross protection

22 In case of non route settting panel point indication locking is given through WNKR front contact atsite and ____________front contact at relay room.

23 Calling on `s UCR has it`s home Signal`s _____ relay`s _____ contact in it`s pick up path.

24 In future installations we have to use ______________(route setting/non route setting)interlocking.

25 On completion of point operation to normal, WLR relay _______ due to ______ contact

,26 JSLR picks up when route is _______________(free/locked)

27 In case of UYR circuit ______________ last repeater relays back contact

28 Overlap is released for a stopping train after 2 minutes time is lapsed after berthing track isoccupied and _______

29 To ensure the signal ahead is not blank in the HR circuit of home, only Main linestarter HECR & DECR in parallel are proved (True/False) ____________

30 The points in isolation must be proved in HR circuit of calling on signal. (True/False)____________

31 For approach locking of loop line starter, the berthing track alone is proved.(True/False) ____________

32 It shall not be possible to insert the crank handle extracted from one group of points in the point machineof any other group of points. (True/False) ____________

33 On complete arrival of the train, SM normalized the signal knob but route not released due to one of theback lock track failed, but SM reversed the gate control knob and slot was sent to gate lodge with a time

delay 120 seconds to open the gate (True/False) ____________

34 For home signal DR to pick up, it is sufficient that main line starter DR is in pick up condition.(True/False) ____________

35 When economizer pushbutton is pressed to extract the crank handle, the lock coil is energized only afterdropping of CHLR. (True/False) ____________

36 When SMs key is taken out, still it is possible to take off a signal from the panel. . (True/False)____________

37 WNR back contact in parallel with NWWNR back contact in RWLR ckt is required for_____________

38 In route setting panel interlocking with domino type panel with all buttons, two common point groupbuttons are provided i.e. one for normal and other for reverse. . (True/False)____________

39 OVSR relay picks up automatically when run through signals are given and train cleared berthing track. .(True/False) ____________

40 One signal one train movement is achieved through TSR circuit(True/False) ____________

S11 State true or false (16 Marks) 1. Selection table contains information of track locking. T / F 2. ASR is not required for electromechanical systems as B lock exist. T / F 3. TSR relay ensures signal is not re-cleared once the replacement track is occupied. T / F 4. In a mechanical system route lever helps in route locking and holding T/ F 5. With sectional route release ASR picks up with first two track circuits cleared by train. T / F 6. Overlap point locking is not required for clearing calling on signal. T / F

7. Isolation is optional for shunt signal clearance. T / F 8. GECR front contact of signal ahead in HR circuit. T / F 9. Cross protection of HR relay is given through NA-band of signal lever. T / F 10.B and D band contacts are used for track locking in point lever. T / F 11. For shunt signal overlap locking is not necessary T / F 2. Fill in the blanks. 1. AE lock on point lever proves------------------ locking of point.

2. B lock proves --------------locking in signal lever.

3. Junction type route indicator----------relay drops when--------- lamps removed and then home

signal cannot be cleared to loop line.

4. In sequential route release three tracks to be taken of which two in ----------- condition.

5. For route locking the track circuits from ________ to the last _________ track circuit in the route.

S11 State true or false (24 Marks)

1. Selection table contains information of route locking. T / F

2. ASR is not required for electromechanical systems as B lock exists. T / F

3. TSR relay ensures signal is re-cleared once the replacement track is occupied. T / F

4. In a mechanical system route lever helps in route locking and holding T/ F

5. With sectional route release ASR picks up with first two point track circuits cleared by train. T / F

6. Overlap point detection is not required for clearing calling on signal. T / F

7. Isolation is compulsory for shunt signal clearance. T / F

8. GECR front contact of signal ahead in HR circuit. T / F

9. Cross protection of HR relay is given through NA -band of signal lever. T / F

10.A and E band contacts are used for track locking in point lever. T / F

2. Fill in the blanks.

1. AE lock on point lever proves------------------ locking of point.

2. _______position lock proves Approach locking in signal lever.

3. Junction type route indicator----------relay drops when--------- lamps removed and then home signal cannot be

cleared to loop line.

4. In sequential route release three tracks to be taken of which one in ----------- condition.

5. For route locking the track circuits from ________ to the last _________ track circuit in the route.

6. ________ lever control is required for converting manual to Automatic signal.

7._______ relay f/c is to be proved in HR cct for Siding control.

8. Crank handles to be grouped to improve the _____________ in the yard .

9. Indication locking is provided where there is no rigid connection between __________ and _________ .

3. Match the following. 1. Sectional route release (A) for stop & start trains 2. Stencil type route indicator (B) to protect operation from false feed 3. Cross protection arrangement (C) UYR cct 4. RB band (D) applicable to major yards to enhance flexiblity 5. Stencil type route indicator (E) to be used in UYR initiation circuit

S11 State true or false (20 Marks) 1. Selection table contains information of route locking. T / F 2. ASR is not required for electromechanical systems as B lock exists. T / F 3. TSR relay doesnot ensures signal is re-cleared once the replacement track is occupied. T / F 4. In a mechanical system route lever helps in route locking and holding T/ F 5. With sectional route release ASR picks up with first two point track circuits cleared by train. T / F 6. Overlap point locking is not required for clearing calling on signal. T / F

7. Isolation is optional for shunt signal clearance. T / F 8. GECR front contact of signal ahead in HR circuit. T / F 9. Cross protection of HR relay is given through RE-band of signal lever. T / F 10.Aand E band contacts are used for track locking in point lever. T / F 2. Fill in the blanks. 1. AE lock on point lever proves------------------ locking of point.

2. B lock proves --------------locking in signal lever.

3. Junction type route indicator----------relay drops when--------- lamps removed and then home signal cannot be

cleared to loop line.

4. In sequential route release three tracks to be taken of which two in ----------- condition.

5. For route locking the track circuits from ________ to the last _________ track circuit in the route. 3. Match the following. 1. Sectional route release (A) for stop & start trains 2. Junction type route indicator (B) to protect from false feed 3. Cross protection arrangement (C) maximum 7 routes 4. RB band (D) applicable to major yards to enhance flexiblity 5. Stencil type route indicator (E) to be used in UYR initiation circuit

S11 Answer any Three (24 Marks) 3. Write conditions of signal clearance. 4. Write short notes a) Route locking and holding b) Sectional route release 5. Explain with circuits a) B- locks on signal lever b) Combined Track locking and indication locking on point lever 6. Explain- a) TSR circuit b) Cross protection and double cutting c) UYR circuit S11 (1. Write true or false-) (16 Marks) 1. Selection table contains information of track locking. T / F

2. ASR is not required for electromechanical systems as B lock exist. T / F

3. TSR relay ensures signal is not recleared once the replacement track is occupied. T / F

4. In a mechanical system route lever helps in route locking and holding T/ F

5. With sectional route release ASR picks up with first three track cleared by train. T / F

6. Overlap point locking is not required for clearing calling on signal. T / F

7. Isolation is not required for shunt signal clearance. T / F

8. GECR front contact of signal ahead in HR circuit. T / F

9. Cross protection of HR relay is given through NA-band of signal lever. T / F

10.B and D band contacts are used for track lock in point lever. T / F

11. For shunt signal overlap locking is not necessary T / F

2. Fill in the blanks. 1. AE lock on point lever proves------------------ locking of point.

2. B lock proves --------------lockings in signal lever.

3. Junction type route indicator----------relay drops when--------- lamps removed and then home signal cannot be cleared to loop line.

4. In sequential route release three tracks to be taken of which two in ----------- condition.

5. For route locking and holding ---------,----------- and ----------------- can be used depending on type of installation in end cabin electromechanical installations. S 11 (30 Marks) Question number 5 is compulsory and attempts any two question . 5. Prepare selection table for signal Nob. 23 & 21 15 marks 6. Write short notes on any THREE. 3x5 = 15 marks

i) Track locking. ii) Indication locking. iii) Approach locking. iv) Back locking.

7. Write down the point to be considered in designing (HR) signal control circuit 15 marks S11 State TRUE or FALSE (20 Marks) 1. Points in isolation are compulsory to proved in shunt signal.

(T / F)

2. Calling on signal provided with approach OR dead approach locking.

(T / F)

3. When key is locked in condition CHLR picks up.

(T / F)

4. Track locking is effective on A &E position of signal lever

(T / F)

5. The approach locking is provided to prevent manipulation of the route when train cross the signal. (T / F) 6. All the track circuit in the route shall be proved in the back locking. (T / F) 7. Points in isolation are desirable to proved in calling ON signal. (T / F) 8. Indication locking on signal lever is effective on B position of signal lever while lever going from normal to reverse (T / F) 9. Indication locking on signal lever is effective on B &D position.

(T / F)

10. TSR circuit achieves one slot one-train principle.

(T / F)

11. Point in isolation must be prove in shunt signal control.

(T / F)

12. In relay interlocking back locking and approach locking is achieved through ASR relay. (T / F) 13. Where there is no rigid connection between lever and function control by that lever then track locking is provided. (T / F) 14. When signal with dead approach locking is reversed and train has not crossed the signal then signal lever can be normalised without time delay. (T / F) 15. Aspect of signal ahead is provided in selection table to provide red lamp protection.

(T / F)

16. Back lock track circuit for loop line starter are berthing track only.

(T / F)

17. Approach locking Time delay for main line starter and home signal is 120 seconds.

(T / F)

18. Normal position of ULSR relay is drop.

(T / F)

19. Track locking performs the function of lock bar.

(T / F)

20. UYR relays provided to prevent premature route release.

(T / F)

*****

S5H (30 Marks) Answer any TWO questions. 1. Enumerate all the conditions before ensuring Signal controlling Relay (HR). 2. Draw and explain briefly the combined track and indication locking for a point lever. 3. With a suitable diagrams & circuits explain briefly the sectional route release.

S5H Fill in the Blanks (20 Marks)

1. Track locking is made effective _______________________ positions on point lever.

2. _______ to be provided where the sufficient length of Approach Track circuit cannot be

provided.

3. _______ locking is to be provided where there is no rigid connection between the lever 4. The purpose of N band contact across HR relay is ___________.and its function 5.. When a stop signal is taken off, the crank handle must be ________ &__________ condition 6.. In junction type route indicator, to energize UECR ______________ no. of minimum

route lamps must be in lit condition.

7.. Indication locking on signals will be effective at _________ position of signal lever.

8. To take off a starter signal ,______________________ points will be considered. 9.Indication locking on signals will be effective at _________ position of signal lever. 10.--------------------- & ---------------------- is provided to prevent energisation of HR by a foreign feed. STATE TRUE OR FALSE (1X10=10 Marks) 1) For a calling signal, overlap points position is proved in signal controlling relay. ( ) 2) A common TSR can be provided for the signals of conflicting nature & having ( ) common controlling track. 3) Cross protection & double cutting is necessary for TPR. ( ) 4) Combined track & indication locking is provided on a signal lever. ( )

- 5) When a point zone track is occupied by train, it is possible to operate the point due ( )

to track locking 6) Back locking is released only when the last point zone track circuit in the route is ( ) cleared by the train 7) Sectional route release is provided at Major yards to facilitate more parallel ( ) movement. 8) Junction type route indicator is used at high speed junctions and way side stations. ( ) 9) In a calling signal controlling relay circuit no track circuit is proved . ( ) 10) In approach locking of M/L starter, all the tracks in rear of M/L starter up to home ( ) are proved.

S 11 (30 Marks) Question number 5 is compulsory and attempts any two question . 5. Prepare selection table for signal Nob. 23 & 21 15 marks 6. Write short notes on any THREE. 3x5 = 15 marks

i) Track locking. ii) Indication locking. iii) Approach locking. iv) Back locking.

7. Write down the point to be considered in designing (HR) signal control circuit 15 marks

S11 State TRUE or FALSE (20 Marks) 1. Points in isolation are compulsory to proved in shunt signal.

(T / F)

2. Calling on signal provided with approach OR dead approach locking.

(T / F)

3. When key is locked in condition CHLR picks up.

(T / F)

4. Track locking is effective on A &E position of signal lever

(T / F)

5. The approach locking is provided to prevent manipulation of the route when train cross the signal. (T / F) 6. All the track circuit in the route shall be proved in the back locking. (T / F) 7. Points in isolation are desirable to proved in calling ON signal. (T / F) 8. Indication locking on signal lever is effective on B position of signal lever while lever going from normal to reverse (T / F) 9. Indication locking on signal lever is effective on B &D position.

(T / F)

10. TSR circuit achieves one slot one-train principle.

(T / F)

11. Point in isolation must be prove in shunt signal control.

(T / F)

12. In relay interlocking back locking and approach locking is achieved through ASR relay. (T / F) 13. Where there is no rigid connection between lever and function control by that lever then track locking is provided. (T / F)

14. When signal with dead approach locking is reversed and train has not crossed the signal then signal lever can be normalised without time delay. (T / F) 15. Aspect of signal ahead is provided in selection table to provide red lamp protection.

(T / F)

16. Back lock track circuit for loop line starter are berthing track only.

(T / F)

17. Approach locking Time delay for main line starter and home signal is 120 seconds.

(T / F)

18. Normal position of ULSR relay is drop.

(T / F)

19. Track locking performs the function of lock bar.

(T / F)

20. UYR relays provided to prevent premature route release.

(T / F)

********************************************************************

S5H Answer any two questions only 2x15 = 30 Marks 1. Explain briefly the sectional route release with neat sketches and circuit diagrams. 2. Explain the approach locking with circuit diagrams and sketches 3. Explain the indication locking and track locking. Draw combined indication and track locking for a point lever.

S5H Fill in the Blanks 14 marks

1. Indication locking is made effective _______________________ positions on point

lever when lever is going from N to R.

2. _______ to be provided where the sufficient length of Approach Track circuit cannot

be provided.

3. _______ locking is to be provided where there is no rigid connection between the lever .and its function 4. The purpose of R band contacts in HR relay circuit is ___________ 5.. When a stop signal is taken off, the crank handle must be ________ &__________ condition 6.. In junction type route indicator, to energize UECR ______________ no. of minimum

route lamps must be in lit condition.

7.. Indication locking on signals will be effective at _________ position of signal lever. 8. To take off a home signal points in the ---------------, ----------------, ----------------- will be considered. 9.Indication locking on signals will be effective at _________ position of signal lever. 10.--------------------- & ---------------------- is provided to prevent energisation of HR by a foreign feed. STATE TRUE OR FALSE (1X6 = 6 Marks) 1) For a calling signal, points in the route and isolation are proved in signal controlling relay. ( ) 2) A common TSR can be provided for the signals of conflicting nature & having ( ) common controlling track.

-2- 3) Cross protection & double cutting is not necessary for TPR. ( ) 4) Combined track & indication locking is provided on a point lever. ( ) 5) When a point zone track is occupied by train, it is not possible to operate the point due to track locking ( ) 6) Back locking is released only when the last point zone track circuit in the route is ( ) cleared by the train

S11 Answer any Three (24 Marks) 3. Write conditions of signal clearance. 4. Write short notes a) Route locking and holding b) Sectional route release 5. Explain with circuits a) B- locks on signal lever b) Combined Track locking and indication locking on point lever 6. Explain- a) TSR circuit b) Cross protection and double cutting c) UYR circuit S11 ( Write true or false-) (16 Marks) 1. Selection table contains information of track locking.

T / F

2. ASR is not required for electromechanical systems as B lock exist.

T / F

3. TSR relay ensures signal is not recleared once the replacement track is occupied.

T / F

4. In a mechanical system route lever helps in route locking and holding

T/ F

5. With sectional route release ASR picks up with first three track cleared by train.

T / F

6. Overlap point locking is not required for clearing calling on signal.

T / F

7. Isolation is not required for shunt signal clearance.

T / F

8. GECR front contact of signal ahead in HR circuit.

T / F

9. Cross protection of HR relay is given through NA-band of signal lever.

T / F

10.B and D band contacts are used for track lock in point lever.

T / F

11. For shunt signal overlap locking is not necessary

T / F

2. Fill in the blanks. 1. AE lock on point lever proves------------------ locking of point.

2. B lock proves --------------lockings in signal lever.

3. Junction type route indicator----------relay drops when--------- lamps removed and then

home signal cannot be cleared to loop line.

4. In sequential route release three tracks to be taken of which two in ----------- condition.

5. For route locking and holding ---------,----------- and ----------------- can be used depending on type of installation in end cabin electromechanical installations.

IRISET-SECUNDERABAD INTEGRATION COURSE FOR GROUP B OFFICERS( T-S) PHASE-1 SYLLABUS NO. ICS11,S12,S13 DATE OF EXAMINATION: 16.07.2009 TIME: 30 MTS. MARKS: 32 OBJECTIVE ICS11____________________________________________________________________________ ICS12______________________________________________________________________________ TOTAL NAME:__________________________DESIG_________RLY_______ROLLNO____ SIGNATURE OF CANDIDATE SIGNATURE OF INVIGILATOR S11 STATE TRUE OR FALSE 1x16 = 16 Marks 1. Normal position of UYRs is pick up. ( ) 2.All tracks in the route shall be proved in back locking. ( ) 3. The indication locking on signal lever is effective on B & D positions of signal lever . ( ) 4.The junction type route indicator is lit for all lines. ( ) 5.The berthing track circuit shall be proved as a controlling track for a shunt signal. ( ) 6. UYR1 and UYR2 relay are used to avoid premature route release. ( ) 7. It is possible to use the crank handle of one crank handle zone to operate the point in other crank handle zone. ( ) 8. By using 49 lamps route indicator, it is possible to display all alphabets and any Numeral upto 19. ( ) 9. When a signal is taken off condition, it is possible to extract the crank handle pertaining to the point in the route. ( ) 10. When the home signal is taken off for L/L, the HR relay picks up only when the route

controlling relay & route lamp checking relay are in the pick up condition ( ) 11. The indication locking on a point lever is provided at D position when the lever is pulled from N to R. ( ) 12. The route lamp checking relay(UECR) picks up when ever all 5 nos of route lamps are glowing. ( ) 13. The approach track circuit is not provided generally for a way side station to provide Approach locking on home signal lever. ( ) 14. The physical isolation is not required to be provided between a home signal and shunt signal ( ) 15.The sectional route release facility is provided at major junction stations to facilitate more parallel movements. ( ) 16. A calling signal detects all the points, which the main signal above it detects excluding the overlap points. ( ) S 12 Fill in the Blanks 1 X 16 = 16

1.Overlap points are locked by _______________relay in drop condition. 2._______________relay in drop condition proves no cancellation is in progress.

3.Authorised operation of panel is ensured by ____________________ relay.

4.Track is clear and the route set, ____________________ light is lit on the panel when signal is taken off.

5.Relays used in British system are _____________________________.

6.Points are electrically locked by _______________________ relay.

7.Energisation of ________________ relay, drops ________________ relay and locks all the points in the route.

8.Cross protection to HR relay is given through _____________ relay front contact.

9.With junction type route indicators circuits ____________ relay is different for different routes but ____________ relay is common.

10.To protect the points in the route after train passes the signal ___________________ locking is used.

11.Occupation of first track, drops _______________ relays and it will not allow signal to be cleared once again automatically.

12.RR dropping is prevented when SM locks the panel by __________________ contact. 13.In electrical circuits the cross protection and double cutting are provided to protect ______________from ____________.

14.Energisation of _________________ relay indicates that crank handle is IN and locked.

15.____________________ relay proves sequential route release.

16. Point knobs used in RRI are of ____________ position.

***

S11 - OBJECTIVE PAPER 1 In home signal HR circuit, one signal one train feature must not be proved. True/False

2 The purpose of `NA' band contact across HR relays is to achieve cross- protection to HR relay.

True/False

3 The berthing track circuit shall be proved in HR circuit of shunt signal. True/False4 In home signal HR circuit, isolation must be proved. True/False5 In home signal HR circuit, siding control operated position must not be proved. True/False

6 In Home Signal HR circuit, crank handle in & locked must be proved. True/False7 TSR can be common for a group of signals. True/False8 Caution aspect lights up first, followed by route indicator lights. True/False9 Conflicting signals are proved at OFF in HR circuit. True/False

10 In a timer circuit, the final relay (JR)) picks up, when hot contact of thermal relay picks up.

True/False

11 TSR relay drops as soon as signal lever is put back to normal. True/False12 Berthing track is required to be proved for releasing backlock on signal lever. True/False

13 In signal back lock release circuit, JR is proved in series with approach track circuits.

True/False

14 In signal back lock release circuit, JR is proved in parallel with UYR1, UYR2 path. True/False

15 In sectional route release, the train will have to pass all track circuits in the route before 1st point can be released.

True/False

16 Calling-on signal can be taken off with point in the route being defective. True/False

17 In main line HR circuit, front contacts of UHRs are proved. True/False18 Before releasing control for operation of sidings, front contacts of relevant

HR relays are proved. True/False

19 Adjacent track circuits are used for picking up UYR1, UYR2 relays. True/False20 TSR picks up immediately after the train clears the first track circuit after the

signal.True/False

21 Track locking performs the function of lock bar. True/False22 TSR Relay is normally drop. True/False23 Isolation is required between two shunt movements. True/False24 Berthing track is proved for back lock release. True/False25 Lock bar is necessary for points in track-circuited zone for route holding. True/False

26 Isolation is not required for run through on main line. True/False27 Isolation is required between main line movement and shunt movement. True/False

28 Signals on the same post are conflicting signals. True/False29 Isolation points are proved for shunt signal movements. True/False30 Overlap points are proved in calling-on signal HR circuit. True/False31 In electro-mechanical signalling, entire interlocking is achieved through relays. True/False

32 There will be only one crank handle for the entire station. True/False33 Phical isolation is not proved between a calling on signal and a shunt signal True/False

34 TSR can pick up when the first track circuit after the signal is occupied. True/False35 All external circuits are designed on single-cutting principle. True/False36 Electronic timers can be used in place of thermal timers. True/False37 Blank signal protection is required for subsidiary signals. True/False38 If starter signal is blank, calling on home signal cannot be taken off. True/False39 Crank handles are provided zone-wise to permit movement of trains over

points which are not affected by extracting crank handle of 1 zone. True/False

40 In indication locking, operation of lever to end position is permitted only after points are correctly detected.

True/False

41 In electro-mechanical signalling, all points are operated by point machines. True/False

42 The indication locking is provided for signal lever and point lever. True/False

43 The track locking and indication locking are provided on a signal lever. True/False44 Shunt signals in the same direction in a route lock one another. True/False45 Calling on signal does not lock shunt signals in the route. True/False46 Calling on signal can be taken off, when berthing line is occupied. True/False47 Calling-on signal and shunt signal can be simultaneously taken off without

isolation. True/False

48 Home Signal and opposite direction calling on can be simultaneously taken off without isolation.

True/False

49 The back locking on a signal lever will be effective at `B' position. True/False50 Lever lock coils can remain energised for long durations. True/False51 Overlap for shunt signal is 60 meters. True/False52 The overlap for taking off starter signal is 120 meters. True/False53 UYR relays provided to prevent premature route release. True/False54 UYR1, UYR2 are used for releasing back locking of shunt siganl lever. True/False55 UYR1, UYR2 are used for relasing back locking of starter signal. True/False56 Separate slots are required for each route of calling on signal. True/False57 Same slot will work for main signal and calling on signal for the same route. True/False

58 Conflicting points are proved in shunt signal HR circuit True/FalseFill in the Blanks

59 Which lever band is used for cross protection in `HR' Circuit? ________________

60 Clear aspect (Green) of Home Signal is controlled by clear aspect of _________ signal.

61 The lever contact used in TSR circuit is ___________ a) RE b) BD c) AE d) NA

62 Route release will take place without delay provided apporach track circuits are __________

63 In a timer circuit, JSR stick pass is used to bypass____________ contact of thermal relay.

64 In signal back lock release circuit, UYR1 & UYR2 are proved in series with ____________ contact of TSR relay.

65 In signal back lock release circuit, pick up contact of TSR is proved in series with _______________ contacts of approach track circuits.

66 In 3-aspect signal provided with cascading feature, when green lamp fuses, ________________ aspect will light up.

67 Points in the overlap are not proved for _______________ signal.68 ________________ contacts of relevant HRs are proved for extraction of crank

handle.69 Crank handle remaining in the interlocking is proved through

_______________ relay.70 NPR relay is used for interlocking _________________ with signals.71 To prove sequential operation, front contact of _____________ is proved in

pick up path of UYR2.72

Type of detector used in electro-mechanical signalling ____________________ a) unit detector (b) rotary detector ( c) electrical detector

73 Detection is proved for motor operated points by which means ______________ a) unit detector b) rotary detector ( c) electrical detector (d) contact assemble in the machine

74 What is the relay name for proving one slot one train by SM _____________________

75 Minimum number of lamps to light up for UECR picking up is _____________________

76 For picking up track repeater relay, ________________ and ___________ are used at site (indicate types of protection)

77 Isolation points are required to be proved, when run through speed exceeds _____ kmph.

78 When route is set towards main line, relationship between siding points and advance starter is ________________.

79 Common lamp in the direction type route indicator is known as ________________ lamp.

80 Position of lever for track locking are ______ & ______81 Position of lever for indication locking are ______ & _______82 __________lock is effective when lever is operated from reverse to normal

position.83 Locking is not provided in which level position _________

a) A b) C c) D d) E84 Which lever contact is not used in level lock coil circuit._______

a) NA b) B c) D d) E85

Lever lock is provided for FPL lever at position_________________________86 TKE ( R )______________________________________________87 TKE (W) ______________________________________________88 CHLR ________________________________________________89 JSR __________________________________________________90 DECR ________________________________________________91 NWKR _______________________________________________92 DGK _________________________________________________93 RWKPR ______________________________________________94 HR __________________________________________________95 RWK_________________________________________________96 UYR _________________________________________________97 Time delay for Home signal Dead Approach

_____________________________ 98 `B' Lock is used on _________ level for route release99 In electro-mechanical signalling, overlap points and tracks are proved through

________________________ relays.100 For receiving a train into the station ____________ have to be given by SM and

for end cabin.