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Q Bank & Answer - Electrical Engineer - LHB COACHES

1. What is the rating of distribution transformer used in LHB AC Coaches (c)

a. 50KVA 

b. 26KVA 

c. 60KVA 

d. 30KVA

Answer - c. 60KVA 


2. What is the integrated panel control supply in LHB AC Coach (b)

 a. 110V AC 

b. 110V DC 

c. 415V 3Ø AC 

d. 750V 3Ø AC

Answer - b. 110V DC 


3. What is the rating of Battery used in LHB AC Coach (b)

 a. 800Ah 

b, 70Ah 

c. 1100Ah 

d. 90Ah

Answer - b, 70Ah 


4. What is the rating Battery fuse used in LHB AC Coach (b)

 a. 100A 

b. 32A 

c. 40A 

d. 63A

Answer - b. 32A 


5. What is the rating of LHB AC Coach 750V side fuse (b)

a. 100A 

b. 125A 

c. 63A

d. 250A

Answer - b. 125A 


6. What is abbreviation of RBCR (b)

a. Regulated Booster current 

b. Regulated Battery charger

c. Regulated Battery Current 

d. None.

Answer - b. Regulated Battery charger


7. The Main function of RBCR used in LHB Coach (d)

a. To Charge the battery 

b. To feed control supply

c. To feed supply light and fans 

d. All the above.

Answer - d. All the above.


8. What is input supply to RBCR in LHB coach (d)

a. 110V AC 

b. 110V DC 

C. 230V AC 

d. 415V 3Ø AC

Answer -  d. 415V 3Ø AC


9. What is the capacity of RBCR (c)

a. 2.5 KW 

b. 5KW 

c. 6.5KW 

d. 10KW

Answer - c. 6.5KW 


10.What is the RDSO specification number of RBCR used in LHB coach (a)

a. RDSO/PE/SPEC/AC/0129-2009 (Rev-I)

b. RDSO/PE/SPEC/AC/0056-2014 (Rev-I)

c. EDTS-041-Rev A

d. None

Answer - a. RDSO/PE/SPEC/AC/0129-2009 (Rev-I)


11. What ids the maximum out put current DC Current of RBCR in LHB coach (a)

a. 50A 

b. 220A 

c. 20A

d. None

Answer -  a. 50A 


12. Output Voltage Range of RBCR in LHB Coach (a)

 a. 110V – 135V DC 

b. 110V-135V AC 

c. 415V AC 

d. None

Answer -   a. 110V – 135V DC 


13.What is abrivation of EBCR used in LHB AC Coach (a)

a. Emergency Battery charger 

b. Emergency Boost charger

c. Emergency Back up charger 

d. None

Answer - a. Emergency Battery charger 


14. What is the rating of EBCR in LHB AC Coach (b)

a. 0.5KW 

b. 2.5KW 

c.6.5KW 

d. None

Answer -  b. 2.5KW 


15. What is the input supply of EBCR in LHB coach (c)

a. 110V AC 

b.110V DC 

c.230V AC 

d.415V, 3Ø AC

Answer - c.230V AC 


16. What is the out put supply voltage of EBCR in LHB coach (b)

a. 110V AC 

b.110V DC 

c.230V AC 

d.415V, 3Ø AC

Answer - b.110V DC 


17. What is the maximum current out put of EBCR in LHB coach (b)

a. 220A 

b. 20A 

c. 63A 

d. 35A

Answer - b. 20A 


18. what is the RDSO specification number of EBCR in LHB AC coach (c)

a. RDSO/PE/SPEC/AC/0129-2009(Rev-1) 

b. RDSO/PE/SPEC/AC/0056-2014(Rev-1)

c. EDTS-163, Rev-C 

d. EDTS-041, Rev-A

Answer - c. EDTS-163, Rev-C 


19. What id the purpose of EBCR in LHB AC coach (b)

 a. Give supply to the AC plant 

b. To give control supply to power panel in emergency

c. To give supply to mobile chargers 

d. None

Answer -  b. To give control supply to power panel in emergency


20.When the EBCR in LHB AC coach is starts functioning (b)

 a. It starts when coach is dark 

b. It starts when RBCR is fails to work

c. It starts on Pre-cooling supply 

d. None

Answer -  b. It starts when RBCR is fails to work


21. What is the supply of end on generation system in LHB (a)

a. 150V, 50Hz, 3Ø, AC 

b. 230V, AC 

c. 415V, 3Ø, 50Hz 

d. None

Answer - a. 150V, 50Hz, 3Ø, AC 


22. How many distribution transformer per coach in LHB AC coach (a)

a. One 

b. Two 

c. Three 

d. None

Answer - a. One 


23. How many vane relays are available in LHB AC coach (d)

 a. One 

b. Two 

c. Four 

d. None

Answer -  d. None


24. EOG power car supply Is feeded to coaches by LHB coaches (b)

a. IV coupler 

b. ZS coupler 

c. CBC coupler 

d. None

Answer -  b. ZS coupler 


25. EOG power car supply Is feeded to AC coaches in Garibrath AC coaches by (a)

 a. IV coupler 

b. ZS coupler 

c. CBC coupler 

d. None

Answer -  a. IV coupler 


26. How many ZS couplers having per coach (a)

a. Two male and Two female 

b. Four male and four female

c. Three male and Three female 

d. None

Answer - a. Two male and Two female 


27. What is capacity of the fuse provided in 415 voltage side of LHB AC (a)

a. 100A 

b. 125A 

c. 80A 

d. 63A

Answer - a. 100A 


28. What is capacity of the fuse provided in local main supply of LHB AC (c)

a. 100A 

b. 125A 

c. 80A 

d. 63A

Answer - c. 80A 


29. How many fuses of 32A are provided in positive fuse box of LHB AC coach (a)

 a. One 

b. Two 

c. Three 

d. Nil

Answer - a. One 


30. How many fuses of 32A are provided in negative fuse box of LHB AC coach (b)

 a. One 

b. Two 

c. Three

 d. Nil

Answer -b. Two 


31. What is input supply of microprocessor in LHB AC coach (b)

 a. 110V Ac 

b. 110V DC 

c. 230V AC 

d. 415V AC

Answer - b. 110V DC 


32. Contactor K1 and K2, are for what purpose in LHB AC coach (a)

 a. for feeeder selection 

b. for local supply 

c. Transformer 

d. None

Answer -   a. for feeeder selection 


33. Contactor K41 and K42 are for what purpose in LHB AC coach (b)

a. for feeeder selection 

b. for local supply 

c. Transformer 

d. All the above

Answer - b. for local supply 


34. Contactor K43 is for what purpose in LHB AC coach (c)

 a. for DC supply 

b. Feed supply selection

c. for local main supply 

d. Transformer supply

Answer - c. for local main supply 


35. What is the abbreviation form of D and ED in LHB AC coach (a)

a. Disconnection and Earthing device 

b. Disconnecting and Energing device

c. Dead and Energing device 

d. None

Answer - a. Disconnection and Earthing device 


36. What is the purpose of Disconnecting and Earth in Device in LHB coach (a)

a. Disconnecting the circuit and Earthing in Off position 

b. Connecting and Earthing

c. Disconnecting and Earthing in On position 

d. None

Answer -  a. Disconnecting the circuit and Earthing in Off position 


37. What is the abbreviation of MMR used in LHB coach (c)

a. Measuring and Minimising Relay 

b. Measuring and Maximising

c. Measuring and Monitoring Relay 

d. All the above

Answer - c. Measuring and Monitoring Relay 


38. How many MMR are available in 750V side in LHB AC coach (c)

a. 1 

b. 3 

c. 2 

d. 4

Answer - c. 2 


39. How many MMR are available in 415V side in LHB AC coach (a)

a. 1 

b. 3 

c. 2 

d. 4

Answer - a. 1 


40. What purpose K05 contactor using in LHB coach (c)

a. for lighting circuit 

b. for RMPU 

c. for WSP 

d. for WRA

Answer - c. for WSP 


41. How many centrifugal double inlet exhaust fans are available in LHB AC coach (b)

a. 1 

b. 2 

c. 3 

d. 4

Answer - b. 2 


42. How many fans are available in LHB coaches in which are manufactured after 2015 in passenger area (d)

a. 18 

b. 20 

c. 16 

d. None

Answer -  d. None


43. What is the contactor number of WRA in LHB AC coach (c)

a. K1, K2 

b. K28, K29 

c. K24, K25 

d. K30, K31

Answer - c. K24, K25 


44. What is the indicating MPCB number of WRA (b)

a. F85, F86 

b. F21, F22 

c. F30, F31

d. None

Answer - b. F21, F22 

 

45.What id the abbreviation of MPCB (b)

a. Motor pump case breaker 

b. Motor protection circuit breaker

c. Monitoring protecting circuit breaker 

d. None

Answer - b. Motor protection circuit breaker


46. What is the rating range of MPCB of WRA pump in LHB (a)

a. 1.0A to 1.6A 

b. 1.5A to 2.5A 

c. 2.5 to 3.0A 

d. 3.0A to 3.5A

Answer - a. 1.0A to 1.6A 


47. What is the Rating range of MPCB for exhaust fan in LHB AC coach (b)

a. 1.0A to 1.6A 

b. 0.1A to 2.5A 

c. 2.5A to 3.0A 

d. None

Answer - b. 0.1A to 2.5A 


48. What is the contactor number of fresh air flap motor in LHB AC coach (c)

a. K8 

b. K9 

c. K21 

d. K44

Answer - c. K21 


49. What is the input supply for flap motors in LHB AC coach (c)

a. 110V AC 

b. 110V DC 

c. 24V DC 

d. 230V AC

Answer - c. 24V DC 

 

50.What is the blower contactor number is in LHB AC coach PP side (a)

a. K28 

b. K26 

c. K31 

d. K32

Answer - a. K28 


51. What is the blower contactor number of NPP side RMPU in LHB AC coach (b)

 a. K28 

b. K26 

c. K31 

d. K32

Answer - b. K26 


52. What is condenser motors contactor number PP side of LHB AC coach (a)

a. K36, K37 

b. K38, K39 

c. K28, K26 

d. None

Answer - a. K36, K37 


53. What is condenser motors contactor number NPP side RMPU in LHB AC coach (b)

a. K36, K37 

b. K31, K32 

c. K28, K26 

d. None

Answer - a. K36, K37 


54. What is compressor contactors of PP side of LHB AC coach (d)

a. K36, K37 

b. K31, K32

c. K28, K26 

d. K38, K39

Answer - d. K38, K39


55. What is compressor motors contactor number NPP side RMPU in LHB AC coach (d)

a. K36, K37 

b. K31, K32 

c. K38, K39 

d. K33, K34

Answer -  d. K33, K34


56. What is Heater contactor number of PP side RMPU in LHB Ac coach (c)

a. K33 

b. K35 

c. K40 

d. K39

Answer - c. K40 


57. What is Heater contactor number of NPP side RMPU in LHB Ac coach (b)

 a. K33 

b. K35 

c. K40 

d. K39

Answer - b. K35 


58. What is the input supply voltage for pump controller in AC coach (d)

 a. 110V AC 

b. 110V DC 

c. 24V DC 

d. All the above

Answer - d. All the above


59. How many Insulation control relays available in LHB AC Coach (b)

a. One 

b. Two 

c. Three 

d. Four

Answer - b. Two 


60. What is the function of Insulation control relays in LHB AC coach (b)

 a. Gives indication of higher insulation in panel

 b. Gives indication of lower insulation in panel

 c. Not indicate any thing

 d. Indicate supply position

Answer -  b. Gives indication of lower insulation in panel


61. K05 timer belongs for which device in LHB coach (c)

 a. Timer for AC compressor 

b. Timer for AC plant

 c. Timer for Anti skid device 

d. None of the above

Answer -  c. Timer for Anti skid device 


62. Contactor K06 belongs to which circuit in LHB AC coach (b)

a. Anti skid device 

b. Electro pneumatic break application

c. AC plant 

d. None of the above

Answer -  b. Electro pneumatic break application


63. Contactor K07 belongs to which circuit in LHB AC coach (c)

a. Anti skid device 

b. Electro pneumatic break application

c. Electro pneumatic break release 

d. None

Answer -  c. Electro pneumatic break release 


64. Contactor K08 belongs to which circuit in LHB AC coach (a)

a. MVR of level 1 

b. MVR of level 2 

c. MVR of level 3 

d. None

Answer - a. MVR of level 1 


65. What ids the abbreviation of MVR in LHB Ac coach (a)

a. Minimal voltage relay 

b. maximum voltage relay

c. Maximum value relay 

d. None

Answer - a. Minimal voltage relay 


66. Contactor K-23 indicates which supply availability in LHB AC coach (c)

a. 110V DC 

b. 110V AC 

c. 415V AC 

d. None

Answer - c. 415V AC 


67. F-01 MCB (triple pole) 10A belongs to which motor in LHB AC coach (a)

a. Blower motor of unit 1 

b. Condenser motor of unit 1

c. Condenser motor of unit 2 

d. Blower motor of unit 2

Answer - a. Blower motor of unit 1 


68. F-02 MCB (Triple pole) 10A belong to which motor in LHB AC coach (b)

a. Blower motor of unit 1 

b. Blower motor of unit 2

c. Condenser motor of unit 1 

d. Condenser motor of unit 2

Answer - b. Blower motor of unit 2


69. F-03 MCB (Triple pole) 20A belong to which motor in LHB AC coach (c)

a. Blower motor of unit 1 

b. Blower motor of unit 2

c. Condenser motor of unit 1 

d. Condenser motor of unit 2

Answer - c. Condenser motor of unit 1 


70. F-05 MCB (Triple pole) 20A belong to which motor in LHB AC coach (b)

a. Compressor motor of unit 1 

b. Compressor motor of unit 2

c. Blower motor of unit 1 

d. Blower motor of unit 2

Answer - b. Compressor motor of unit 2


71. F-04 MCB (Double pole) 10A belong to which motor in LHB AC coach (c)

a. Compressor motor of unit 1.1 

b. Compressor motor of unit 1.2

c. Crank case heaters for CP 1.1 and CP 1.2 

d. None

Answer - c. Crank case heaters for CP 1.1 and CP 1.2 


72. F-06 MCB (Triple pole) 10A belong to which motor in LHB AC coach (a)

 a. Condenser motor of unit 1.1 

b. Condenser motor of unit 1.2

 c. Condenser motor of unit 2.1 

d. Condenser motor of unit 2.1

Answer -   a. Condenser motor of unit 1.1 


73. F-07 MCB (Triple pole) 10A belong to which motor in LHB AC coach (b)

 a. Condenser motor of unit 1.1 

b. Condenser motor of unit 1.2

 c. Condenser motor of unit 2.1 

d. Condenser motor of unit 2.1

Answer - b. Condenser motor of unit 1.2


74. F-08 MCB (Triple pole) 6A belong to which motor in LHB AC coach (a)

 a. Heater of unit-1 

b. Heater of unit-2

c. Blower motor unit-1 

d. None

Answer -  a. Heater of unit-1 


75. F-09 MCB (Triple pole) 20A belong to which motor in LHB AC coach (d)

 a. Blower motor-1 

b. Blower motor-2

c. Compressor motor 2.2 

d. Compressor motor 2.1

Answer -  d. Compressor motor 2.1


76. F-10 MCB (Double pole) 10A belong to which circuit in LHB AC coach (d)

a. Heater of unit-1 

b. Heater of unit-2

c. Crank case heaters for CP 1.1 and CP 1.2 

d. Crank case heaters for CP 2.1 and CP 2.2

Answer - d. Crank case heaters for CP 2.1 and CP 2.2


77. F-11 MCB (Triple pole) 20A belong to which motor in LHB AC coach (a)

a Compressor motor of unit 2.1 

d. Compressor motor of unit 2.2

c. Compressor motor of unit 1.1 

d. Compressor motor of unit 1.2

Answer - a Compressor motor of unit 2.1 


78. Net 1 and Net 2 of LHB AC can be selected at a time (a)

a. No 

b. Yes 

c. Both working at time 

d. None

Answer - a. No 


79. Why the Net 1 and Net 2 can not be selected at a time in LHB coach (c)

 a. Since there is a different supply 

b. Since there is no supply

 c. Since there is a different supply 

d. All of the above

Answer -  c. Since there is a different supply 


80. Contactor K- 44 for which supply feed to coach in LHB type AC coach (c)

a. 110V AC supply 

b. 110V AC supply

c. 60 KVA transformer out put supply 

d. None of the above

Answer - c. 60 KVA transformer out put supply 


81. In LHB type RMPU, what type of over heat protection available (c)

a. OHP 

b. ESTI 

c, Both (a) and (b) 

d. None of the above

Answer -  c, Both (a) and (b) 


82. When ESTI fuse link protection comes in circuit in LHB RMPU (c)

 a. If OHP fail to operate 

b. If heating temperature

c. Both (a) and (b) 

d. None

Answer - c. Both (a) and (b) 


83. ESTI self destroying type fusible link of heater circuit in LHB RMPU in series with which supply (d)

a. 110V AC 

b. 230V AC 

c. 110V DC 

d. 415V AC, 3Ø

Answer - d. 415V AC, 3Ø


84. How many sensors are available in LHB AC coach for sensing the temperature parameters (d)

a. 3 

b. 4 

c. 5 

d. 6

Answer - d. 6


85. Humidity control is facility is available in which type coach (c)

a. Under slung type AC 

b. SG type RMPU

c. LHB type RMPU 

d. None of the above

Answer - c. LHB type RMPU 


86. Why LHB RMPU motor are in built with OTP (a)

 a. To sense and protect against over temperature

 b. To sense and protect against lower temperature

 c. To sense and protect against lower temperature

 d. To sense and protect against low IR value

Answer -  a. To sense and protect against over temperature


87. What are the under gear safety items to be checked in LHB AC coach (e)

 a. Junction boxes 

b. 60 KVA transformer 

c. WRA pumps 

d. Battery box 

e. all of the above

Answer -  e. all of the above


88. What is abbreviation of (c)

a. Like Half man bush 

b. Link Half man Bosh

c. Link Half man bush 

d. None

Answer -  c. Link Half man bush 


89. LHB Technology was imported from which (d)

a. Japan 

b. USA 

c. Italy 

d. Germany

Answer -  d. Germany


90. Ist Alstam LHB coach designed and manufactured and commissioned on (a)

a. 23 june 2003 

b. 23 june2004 

c. 23 june 2005 

d. None

Answer -  a. 23 june 2003 


91.Length of LHB Coach is (b)

a. 22.54M 

b. 23.54M 

c. 24.54M 

d, 25,54M

Answer -  b. 23.54M 


92.Passenger capacity of 2-AC LHB coach (d)

a. 46 

b. 48 

c. 52 

d. 54

Answer - d. 54


93.Passenger capacity of 3-AC LHB coach (d)

a. 46 

b. 56 

c.64 

d. 72

Answer -  d. 72


94.Which AC coaches are designed with Moisture control (c)

a. Under slung type 

b. RMPU type 

c. LHB type 

d. All the above

Answer -  c. LHB type 


95.750V Circuit insulation test to be done by with………….Volts megger (c)

a. 230V 

b. 500V 

c. 1000V 

d. None

Answer - c. 1000V 


96.415V circuit cables insulation test to be done by with………..Volts megger (c)

 a. 230V 

b. 500V 

c. 1000V 

d. None

Answer - c. 1000V 


97.230//190Vcircuit cables insulation test to be done by with………..Volts megger (b)

a. 230V 

b. 500V 

c. 1000V 

d. None

Answer - b. 500V 


98.110V circuit cables insulation test to be done by with………..Volts megger (b)

a. 230V 

b. 500V 

c. 1000V 

d. None

Answer - b. 500V 


99. 24V circuit cables insulation test to be done by with………..Volts megger (a)

a. 230V 

b. 500V 

c. 1000V 

d. None

Answer - a. 230V 


100. 750V circuit cables insulation test done with 1000V megger the value should not be less than…ohms (c)

a. Not less than 2 ohms 

b.Not less then 3 ohms

c. Not less then 5 Ohms 

d. Not less then 10 ohms

Answer -  c. Not less then 5 Ohms 


101. 415 Volts circuit cable insulation test done by 1000V megger the value should not less than…..ohms (b)

a. 2 Ohms 

b. 3 ohms 

c. 5 ohms 

d. 10 ohms

Answer -   b. 3 ohms 


102. 230/190V circuit cable insulation test done by with 500 megger the value should not less then…ohms (a)

a. 2 ohms 

b. 3 ohms 

C. 5 ohms 

d. 10 ohms

Answer - a. 2 ohms 


103. 110V circuit cable insulation test done by with 500 megger the value should not less then…ohms (a)

a. 2 ohms 

b. 3 ohms 

C. 5 ohms 

d. 10 ohms

Answer - a. 2 ohms 


104. LHB type one RMPU cooling capacity (c)

a. 5Ton 

b. 6ton 

c. 7ton 

d. None

Answer - c. 7ton 


105. LHB type one RMPU power consumption capacity………..KW (d)

a. 10.6KW 

b. 12.6KW 

c. 13.0KW 

d. 13.6KW

Answer - d. 13.6KW


106. LHB type one compressor motor power consumption capacity………..KW (a)

a. 5.25KW 

b.6.25KW 

c. 7.25KW 

d. None

Answer - a. 5.25KW 


107.LHB type RMPU Manufacturing firms are (d)

 a. M/S Sidwal 

b. M/S LLOYD 

c. M/S Stesalit 

d. All the above

Answer - d. All the above


108.Refrigerents used in LHB RMPU are (d)

a. R134a 

b. R22 

c. 407C 

d. (b) & (c)

Answer - d. (b) & (c)

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