1.Rating of EMU transformer is
(a) 1200KVA
(b) 1000KVA
(c) 800 KVA
(d) 1100KVA
Answer - (b) 1000KVA
(a) 500 V
(b) 580 V
(c) 535 V
(d) 550 V
Answer - (c) 535 V
3.New wheel diameter of EMU Motor Coach/Trailer coach
(a) 900 mm
(b) 950 mm
(c) 850 mm
(d) 952 mm
Answer - (d) 952 mm
4.Total auxiliary motors in EMU motor coach are
(a) 5
(b) 4
(c) 3
(d) 2
Answer - (a) 5
5. Total No. of traction motors in a EMU Motor Coach is
(a) 2
(b) 3
(c) 4
(d) 5
Answer - (c) 4
6. The Safety device provided in EMU for detecting gassing and the protection of Transformer is:
(a) OLP
(b) TTR
(c) BUD
(d) PRV
Answer - (b) TTR
7. The Safety device fitted in the EMU Transformer for its protection against explosion:
(a) PRV
(b) OLP
(c) BUD
(d) TTR
Answer - (a) PRV
8. The Ampere hour capacity of EMU battery is :
(a) 80 Ah
(b) 90 Ah
(c) 100 Ah
(d) 75 Ah
Answer - (b) 90 Ah
9. The type of Traction Motor used in EMU is :
(a) 4001 BX
(b) 4601 BX
(c) 6040 BX
(d) None of the above
Answer - (b) 4601 BX
10. The No of teeth in EMU traction motor pinion is :
(a) 19
(b) 20
(c) 55
(d) 91
Answer - (b) 20
11. The gear ratio in EMU is ;
(a) 1 : 4
(b) 1 : 5
(c) 1 : 4.55
(d) 1 : 5.55
Answer - (c) 1 : 4.55
12.The control voltage in EMU is ;
(a) 110 V AC
(b) 230 V AC
(c) 110 V DC
(d) 230 V DC
Answer - (c) 110 V DC
13. The rating of EMU traction motor is :
(a) 150 KW
(b) 535 KW
(c) 230 KW
(d) 167 KW
Answer - (d) 167 KW
14. The type of cooling of transformer oil is :
(a) OFAF
(b) OF
(c) AF
(d) None of the above
Answer - (a) OFAF
15. The voltage of primary winding of EMU transformer is :
(a) 25 KV
(b) 266 V
(c) 782 V
(d) None of the above
Answer - (a) 25 KV
16. The voltage of Secondary winding of EMU transformer is :
(a) 25 KV
(b) 266 V
(c) 782 V
(d) None of the above
Answer - (a) 25 KV
17.The voltage of Auxiliary I winding of EMU transformer is :
(a) 25 KV
(b) 266 V
(c) 782 V
(d) None of the above
Answer - (a) 25 KV
18. The voltage of Auxiliary II winding of EMU transformer is :
(a) 141 V
(b) 266 V
(c) 782 V
(d) None of the above
Answer - (a) 141 V
19. The No of main poles in EMU traction motor is :
(a) 2
(b) 4
(c) 6
(d) None of the above
Answer - (a) 2
20. The BDV stands for :
(a) Break down value
(b) Break down voltage
(c) Break drop voltage
(d) None of the above
Answer - (b) Break down voltage
21. The BDV for new filtered oil for transformer is :
(a) 40 KV
(b) 60 KV
(c) 30 KV
(d) None of the above
Answer - (a) 40 KV
22. The capacity of main compressor in EMU is:
(a) 900 lpm
(b) 1000 lpm
(c) 500 lpm
(d) None of the above
Answer - (b) 1000 lpm
23. The rating of MCP in EMU is:
(a) 12 HP
(b) 10 HP
(c) 20 HP
(d) None of the above
Answer - (a) 12 HP
24. The No of carbon brushes in TM are :
(a) 2
(b) 4
(c) 6
(d) 8
Answer - (d) 8
25. The condemning size of TM carbon brush is :
(a) 32 mm
(b) 40 mm
(c) 35 mm
(d) None of the above
Answer - (a) 32 mm
26. The type of TM suspension in EMU is ;
(a) Fixed
(b) Axle hung nose suspended
(c) Mounting pad
(d) None of the above
Answer - (b) Axle hung nose suspended
27. The function of Aux rectifier is to feed :
(a) Aux I circuit
(b) Battery charger
(c)Main Compressor
(d) None of the above
Answer - (c)Main Compressor
28. The function of DC-DC converter is to feed :
(a) Flasher light
(b) Head light
(c) Tail lamp
(d) None of the above
Answer - (b) Head light
29. The number of batteries available in EMU are :
(a) 5
(b) 8
(c) 10
(d) None of the above
Answer - (c) 10
30.If Traction motor No 4 is grounded, which of the following relay will act?
a) OL 1&2
(b) OL 3&4
(c) EFRP
(d) EFRA-II
Answer - (c) EFRP
31. Fans in EMU are working with
a) 110 V AC
(b) 110 V DC
(c) 141 V AC
(d) 266 V AC
Answer - (d) 266 V AC
32. Battery used in EMU is
a) Ni-Cd Cell
(b) Lead acid cell
(c) Dry cell
(d) Edison cell
Answer - (b) Lead acid cell
33. Number of interpoles used in TM 4601 BX is
a) 4
b) 2
c) 6
d) 8
Answer - a) 4
34. HRC fuses for protecting the battery is rated at
a) 100 A
b) 120A
c) 70 A
d) 80A
Answer - d) 80A
35. HRC fuse rating of static battery charger
a) 16 A
b) 5 A
c) 32 A
d) 10 A
Answer - c) 32 A
36. MCB rating for radiator fan
a) 10 A
b) 5 A
c) 15 A
d) 10 A
Answer - b) 5 A
37. MCB rating for rectifier fan
a) 10 A
b) 5 A
c) 15 A
d) 10 A
Answer - a) 10 A
38. Oil pump has a capacity of
a) 1 H.P
b) 1.5 HP
c) 0.5 H.P
d) 2 H.P
Answer - b) 1.5 HP
39. Rectifier fan has a capacity of
a) 1 H.P
b) 1.5 HP
c) 0.5 H.P
d) 2 H.P
Answer - a) 1 H.P
40. Radiator fan has a capacity of
a) 1 H.P
b) 1.5 HP
c) 0.5 H.P
d) 2 H.P
Answer - c) 0.5 H.P
41. Forward and Reverse direction of TM is controlled through which wires?
a) 1&2
b) 1&3
c) 3&4
d) 5&6
Answer - d) 5&6
42. Traction Ammeter is connected to which TMs?
a) 1&2
b) 1&3
c) 3&4
d) 5&6
Answer - b) 1&3
43. Rated Voltage of Motor Contactors is
a) 1300 V
b) 1500 V
c) 500 V
d) 1000 V
Answer - b) 1500 V
44. Which of these relays cause motor contactors to open?
a) EFRA - II
b) OLP
c) PRV
d) RFAR
Answer - b) OLP
45. Static battery Charger output is
a) 90 V DC
b) 266 V AC
c) 110 V DC
d) 266 V DC
Answer - c) 110 V DC
46. Battery Charger failure will result in the glowing of Lamp
a) MSTWL
b) PFD
c) VCB OFF
d) BCFR
Answer - c) VCB OFF
47. Fans power circuit is protected by HRC fuse of
a) 16 A
b) 32 A
c) 63 A
d) 20 A
Answer - c) 63 A
48. Lights Power circuit is protected by HRC fuse of
a) 16 A
b) 32 A
c) 63 A
d) 20 A
Answer - c) 63 A
49. Type of motor used in Auxiliary compressor is
a) DC Shunt
b) Squirrel cage
c) Synchrounous
d) DC series
Answer - c) Synchrounous
50. EMU Motor coach tare weight is approx
a) 31.04 tonnes
b) 48.31 mm
c) 63.77 tonnes
d) 56.52 tonnes
Answer - c) 63.77 tonnes
51. EMU trailer coach tare weight is approx
a) 31.04 tonnes
b) 48.31 mm
c) 63.77 tonnes
d) 56.52 tonnes
Answer - a) 31.04 tonnes
52. Working voltage for head light is
a) 50 V DC
b) 24 V DC
c) 110 V DC
d) 100 V DC
Answer - b) 24 V DC
53. Maximum OHE voltage is
a) 25 KV
b) 27.5 KV
c) 30 kV
d) none of these
Answer - b) 27.5 KV
a) 25 KV
b) 10KV
c) 17.5 kV
d) none of these
Answer - b) 10KV
55. Vendor coach in EMU can be found in coach type
a) B
b) C
c) D
d) none of these
Answer - b) C
56. First Class coach in EMU can be found in coach type
a) B
b) C
c) D
d) none of these
Answer - b) C
57. Which of the following TM is only used in EMU?
a) 4601 BX
b) 4303 BY
c) C1005 TM
d) None of these
Answer - b) 4303 BY
58. In a 3 Phase EMU rake the leading coach is
MC
TC
DTC
ND
TC
Answer - DTC
a) Both end coaches
b) Middle coach
c) All coaches
d) End Coach
Answer - c) All coaches
60. The conversion method from single phase (25KV) to 3 phase is using
a) Rotary Converter
b) Phase converters
c) Digital phase converters
d) Rectifier - Inverter
Answer - c) Digital phase converters
61. Which of the following equipments is NOT found in motor coach of a 3 phase EMU unit?
a) Line voltage transformer
b)Auxilliary Converter
c) Main Compressor
d) Line Filter
Answer - c) Main Compressor
62. in a 3 phase EMU unit , TCMS stands for
a) Traction Control Management System
b) Traction cable management System
c) Train cable management System
d) Train Control Managem ent System
Answer - c) Train cable management System
63. Communication between different components in train is facilitated by
a) TCMS
b) GDU
c) BECU
d) IGBT
Answer - c) BECU
64. Rated Voltage of 3 Phase motor used is
a) 535 V
b) 1500 V
c) 940 V
d) 745 V
Answer - c) 940 V
65. Rated power of 3 phase motor used in 3 phase EMU is
a) 535 kW
b) 150 kW
c) 268 kW
d) 745 kW
Answer - c) 268 kW
66. In 3- Phase EMU the battery box is located in
a) MC
b) DTC
c) TC
d) None
Answer - c) TC
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