(For official use only)

(Govt. of India)
(Ministry of Railways)

Question Bank on HHP Locos

(WDP4/WDG4/WDP4D)

IRCAMTECH/M/GWL/HHPQB/1.0
December - 2014

MAHARAJPUR, GWALIOR 474005

egkjktiqj, Xokfy;j & 474005

474005

Question Bank on HHP Locos

(WDP4/WDG4/WDP4D)

FOREWORD
HHP locomotive was introduced in Indian Railways
services in the year 1999-2000. Due to new version
of locomotive, there are various differences from
conventional locomotives hence proper knowledge of
this

technologically

upgraded

locomotive

is

necessary to Loco staff involved in operation and

maintenance of these locomotives. This Question
bank on WDP4/WDG4/WDP4D locomotives has
been prepared by CAMTECH with the objectives that
loco

running

staff

involved

in

operation

and

maintenance of diesel electric locomotives get

sufficient knowledge of HHP locomotives.

This

Questions

bank

describes

Objectives

Questions, true/false & Fill in the blanks questions of

WDP4/WDG4/WDP4D locomotives. I am sure that
the Question bank be highly useful to the concerned
staff,

to

ensure

trouble

free

service

of

the

WDP4/WDG4/WDP4D locomotives.
December, 2014
CAMTECH, GWALIOR

(A R Tupe)
Executive Director

PREFACE
WDG4/WDP4WDP4D class of locomotives are high
speed, high adhesion, computer controlled and Loco
Pilot

friendly

Locomotives

using

state-of-the-art

technology.

Proper knowledge of WDP4/WDG4/WDP4D locomotives

is necessary to ensure reliability and availability of
locomotives.

This

Questions

bank

on

WDP4/WDG4/WDP4D locomotives has been prepared

by

CAMTECH

maintenance

with

staff

the

objectives

involved

in

that

operation

those,
and

maintenance of Diesel electric locomotives, must be

aware of sufficient knowledge of HHP locomotive
Technological Up gradation and learning is a continuous
process. Hence feel free to write to us for any addition /
modifications or in case you have any suggestion to
improve the Questions bank. Your contribution in this
direction shall be highly appreciated.

December, 2014
CAMTECH GWALIOR

(K.P.Yadav)
Director/Mech

CORRECTION SLIPS
The correction slips to be issued in future for this
handbook will be numbered as follows:
IRCAMTECH/M/GWL/HHP/QB/1.0 LOCO/C.S. # XX date
------------Where XX is the serial number of the concerned
correction slip (starting from 01 onwards).
CORRECTION SLIPS ISSUED
Sr. No. of
C.Slip

Date of
issue

Page No. and Item

no. modified

Remarks

CONTENTS
SN

Description

Page
No

1.0

Objective Questions on HHP Locomotives

1- 40

2.0

True/False Questions on HHP Locomotives

41-47

3.0

Fill in the blanks - Questions on HHP

Locomotives

48-54

4.0

Match the following - HHP Locomotives

55-60

5.0

What happens when- HHP Locomotives

61-63

6.0

Choose the odd- HHP Locomotives

64

7.0

Answer sheets for Objective Questions on

HHP Locomotives

65-67

CAMTECH/GWL/M/HHP/QB/2014.

HHP LOCOMOTIVES

1. What is the Horse power of WDP4 D & WDP4 B

locomotives
A.
B.
C.
D.

3000 HP
3500 HP
4000 HP
4500 HP

2. What is the compression ratio of WDP4 D & WDP4 B

locomotives
A.
B.
C.
D.

16:1
14:1
13:1
15:1

3. Which type of diesel engine is fitted in HHP locomotive

A.
B.
C.
D.

Four stroke
Three stroke
One stroke
Two stroke

4. TM pinion and bull gear ratio in WDP4 D & WDP4 B loco

is
A.
B.
C.
D.

17:90
17:77
65:18
90:35

5. Maximum speed of WDP4 D & WDP4 B locomotive is

Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

A.
B.
C.
D.

130 Kmph
160 Kmph
150 Kmph
180 Kmph

6. What is the fuel tank capacity in WDP4 D & WDP4 B

locomotive
A.
B.
C.
D.

5000 Litter
6000 Litter
4000 Litter
None of these

7. Transmission in WDP4 D & WDP4 B locomotive is

A. AC-DC
B. AC-AC
C. DC-DC
D. DC-AC
8. Total weight of WDP4 D loco is
A.
B.
C.
D.

115.8 Tones
119.8 Tones
121.8 Tones
123.0 Tones

9. Total weight of WDP4 B loco is

A.
B.
C.
D.

115.8 Tones
119.8 Tones
121.2 Tones
123.0 Tones

Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

10. What is the maximum speed of the WDG 4 locomotive

A.
B.
C.
D.

150 Kmph
140 Kmph
120 Kmph
100 Kmph

11. What is the fuel tank capacity of WDG4 Locomotive

A.
B.
C.
D.

5000 Liters
6000 Liters
4000 Liters
7000 Liters

12. Length of WDG4/WDP4B loco over buffer is

A.
B.
C.
D.

19964 mm
23000mm
20000mm
21000mm

13. Length of WDP4D loco over buffer is

A.
B.
C.
D.

19964 mm
23000mm
20000mm
21000mm

14. Maximum Tractive effort of WDG4 loco is

A. 41 Tones
B. 53Tones
C. 50 Tones

Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

D.123.0 Tones
15. MaximumTractive effort of WDP4B/WDP4D loco is
A.
B.
C.
D.

41 Tones
53Tones
50 Tones
123.0 Tones

16. Which type of diesel engine model is fitted in HHP

locomotive
A.
B.
C.
D.

ALCO-251
GT46
710 G3B
GT 46MAC

17. How many cylinders are used in HHP Loco Engine

A.
B.
C.
D.

16 Nos
08 Nos
12 Nos
14 Nos

18. Which type of Traction Motors fitted in HHP LOCO?

A. 3-Phase AC Motors
B. DC Sries Motors
C. Both A & B
D. None of these

Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

19. Which type of Main Generator fitted in HHP LOCO?

A. DC Generator
B. 3 phase Alternator
C. Both A & B
D. None of these

20. Main role of Traction Inverters in HHP LOCO?

A. To control 3-Phase AC Induction Motors
B. To control 3 phase Alternator
C. Both A & B
D. None of thse

21. Traction Inverters converts in HHP Loco?

A. DC power into 3 phase AC power for variabl
frequency
B. AC power into 3 phase AC power
C. Both A & B
D. None of thse

22. How much Traction Inverters in HHP LOCO (In

Medha make Traction System)
A. 6
B. 5
C. 4

Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

D. 3
23. How much Traction Inverters in HHP LOCO (In
EMD make Traction System)
A. 6
B. 2
C. 4
D. 3
24. How much Traction Inverters in HHP LOCO (In
SIEMENS make Traction System)
A. 6
B. 2
C. 4
D. 3
25. In HHP Loco LCC, Traction Computer, DCL in house
of (In EMD make Traction System:).
A.ECC1
B. ECC2
C. TCC
D. ECC3
26. In HHP Loco LCC, Traction Computer, DCL in
house of ( In SIEMENS make Traction System:).
A.ECC1
B. ECC2
C. TCC
D. ECC3
27. In HHP Loco , Traction Computer, DCL in house of (
In Medha make Traction System:).
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CAMTECH/GWL/M/HHP/QB/2014.

A.ECC1
B. ECC2
C. TCC
D. ECC3
28. In HHP Loco, LCC in house of ( In Medha make
Traction System:).
A.ECC1
B. ECC2
C. TCC
D. ECC3
29. How much phase module in HHP Loco (In Medha
make Traction System)
A. 18
B. 6
C.12
D. None of these
30. How much phase module in HHP Loco (In EMD
make Traction System)
A. 18
B. 6
C. 12
D. None of these
31. How much phase module in HHP Loco (In Siemens
make Traction System)
A. 18
B. 6
C. 12
D. None of these

Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

32. Which type of IGBT Device used in HHP loco (In

Medha make Traction System)
A. ABB make,V =6.5 KV, I=600Amps. 2 devices/phase
module
B. Siemens make, V =6.5 KV, I=600Amps. 6 devices
/phase module
C. Mitsubishi make, V =4.5 KV, I=1200Amps, 4
devices /phase module
D. None of these
33. Which type of IGBT Device used in HHP loco (In
SIEMENS make Traction System)
A. ABB make,V =6.5 KV, I=600Amps. 2 devices/phase
module
B. Siemens make, V =6.5 KV, I=600Amps. 6 devices
/phase moduleC. Mitsubishi make, V =4.5 KV, I=1200Amps, 4
devices /phase module
D. None of these
34. Which type of IGBT Device used in HHP loco (In
EMD make Traction System)
A. ABB make,V =6.5 KV, I=600Amps. 2 devices/phase
module
B. Siemens make, V =6.5 KV, I=600Amps. 6 devices
/phase module
C. Mitsubishi make, V =4.5 KV, I=1200Amps, 4 devices
/phase module
D. None of these
35. Input voltage & current of TCC is.
A. 620 -2600 V DC, max 1200 A DC
B. 0 V AC--- 2000 V, max 1100 A AC

Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

C. 520 -2600 V DC, max 1100 A DC

D. None of these
36. Output voltage & current of TCC is.
A. 620 -2600 V DC, max 1200 A DC
B. 0 V AC- 2000 V, max 1100 A AC
C. 520 -2600 V DC, max 1100 A DC
D. None of these
37. Weight of TCC is.
A.
B.
C.
D.

2400Kg
2000Kg
1500Kg
None of these

38. Outer Dimension (lxbxh) of TCC is.

A.
B.
C.
D.

1833x2140x1450mm
1530x2140x1450mm
2133x2140x1450mm
None of these

39. Current rating of COMPUTER CONTROL, AC

CONTROL, AIR DRYER, Circuit breaker in HHP loco is
A. 10 Amp
B. 15 Amp
C. 20 Amp
D. 25 Amp
40. Current rating of FUEL PUMP, TURBO, LIGHT,
GOV. BOOSTER PUMP, LOCAL CONTROL, TCC
BLOWER, FILTER BLOWER circuit breaker in HHP
loco is
A. 30 Amp
B. 15 Amp
C. 20 Amp
D. 25 Amp
Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

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41. Current rating of Head Light circuit breaker in HHP

loco is
A. 10 Amp
B. 15 Amp
C. 20 Amp
D. 35 Amp
42. Current rating of CONTROL circuit breaker in HHP
loco is
A. 40 Amp
B. 50 Amp
C. 90 Amp
D. 35 Amp
43. Current rating of GEN FIELD circuit breaker in HHP
loco is
A. 40 Amp
B. 50 Amp
C. 90 Amp
D. 35 Amp
44. Current rating of TCC1 Computer, TCC2 Computer,
AUX.GEN FEEDBACK, AUX.GEN FIELD circuit
breaker in HHP loco is
A. 10 Amp
B. 20 Amp
C. 30 Amp
D. 35 Amp
45. Current rating of TCC1-TCC2 BLOWER circuit
breaker in HHP loco is
A. 10 Amp
B. 50 Amp
C. 30 Amp
D. 35 Amp
Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

46. Current rating of DCL Control,

RECORDER circuit breaker in HHP loco is
A.
B.
C.
D.

11

EVENT

03 Amp
5 Amp
10 Amp
15 Amp

47. How much DC LINK switch gears in HHP LOCO?

A. 6
B. 5
C. 4
D. 3
48. Traction Control Cabinet (TCC) consists of
A. Six Traction Computers, 6 DCL switch gears
B. 6 IGBT based Inverters, DC link Capacitors and
Crow bar circuit
C. Both A & B
D. None of thse
49. TCC converts during dynamic brake. In HHP Loco?
A. DC power into 3 phase AC power
B. 3 phase AC power into DC power
C. Both A & B
D. None of thse
50. In HHP Locos ECC-2 are located in
A. Driver cabin
B. Under Truck
C. Near Radiator room
D. None of thse
51. In HHP Locos STA & ST Contactors are located in
A. ECC-1
Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

12

B. ECC-2
C. ECC-3
D. ECC-4
52. In HHP Locos AGAI &AGAV Sensors are located in
A. ECC-1
B. ECC-2
C. ECC-3
D. ECC-4
53. In HHP Locos Battery charger & Aux Gen CB are
located in
A. ECC-1
B. ECC-2
C. ECC-3
D. ECC-4
54. WDP4D Locos, ECC2 same as
A. WDP4
B. WDG4
C. WDP4B
D. All of above
55. In WDP4/WDP4B Locos ECC-1 are located in
A. Driver cabin
B. Near Radiator room
C. Under Truck
D. None of thse
56. In WDP4/WDP4B Locos ECC-3 are located in
A. Driver cabin
B. Near Radiator room
C. Under Truck
D. None of thse

Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

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57. ..type of speedometer is available

onWDG4.
A. Mechanical
B. Electrical
C. radar sensor
D. Electronic
58. How many Power Contactors are available in WDG4
Locomotive?
A.8
B.9
C.0
D.6
59. In WDG4 loco compressor is cooled by
A. Nature
B. Air
C. Oil
D. Water
60. In WDG4 turbo is cooled by
A. Nature
B. Air
C. Oil
D. Water
61. In WDG4 power contactors are replaced with
A. FS contactor
B. only relays
C. BKT/REV
D. DC Link

Question Bank on HHP Diesel Locomotives

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62. In WDG4 when driver fails to acknowledge the alerter

it gives audio warning for .sec.
A. 10
B. 17
C. 25
D. 8
63. For quick charging of BP in WDG4 ..is used.
A. Foot pedal
B. A9 release
C. SP1/SP2
D .None of these
64. In WDG4 hot oil detector is set at.degrees centigrade
A.126
B. 100
C.150
D .200
65. Blended brake is mixture of
A. Vacuum +Air
B. Dynamic +Loco
C. Formation +Dynamic+ loco
D. Formation +Loco
66. In WDP4 when the loco is moving in opposite direction
to the reverser position.will happen soon the speed
increases to 5 kmph
A. Dynamic brake come into action
B. alerter will come into function
C. power ground will take place
D. Loco will shutdown
67. The only loco provided with two dipstick gauges to
measure lube oil is

Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

A. WDM2
B. WDP4
C. WDG4
D .WDG3A
68. WDG4 engine cylinders are cooled by
A. Water
B. oil and water
C. super charged air and water
D. air conditioning
69. What is the lube oil SUMP capacity of WDP4 loco?
A.
B.
C.
D.

1073 Liters
1100 Liters
950 Liters
910 Liters

70. What is the full speed RPM of the HHP locomotive

engine
A. 1000 RPM
B. 904 RPM
C. 900 RPM
D. 950 RPM
71. What is the IDLE speed RPM of the HHP locomotive
engine
A. 300 RPM
B. 200 RPM
C. 269 RPM
D. 904 RPM
72. What is the low IDLE speed RPM of the HHP
locomotive engine

Question Bank on HHP Diesel Locomotives

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CAMTECH/GWL/M/HHP/QB/2014.

A.
B.
C.
D

300 RPM
200 RPM
269 RPM
904 RPM

73. What is the lube oil SUMP capacity of WDG4 loco?

A. 1000 Liters
B. 1100 Liters
C. 1457 Liters
D. 910 Liters
74. What is the coolent water capacity in the HHP
locomotive
A. 1200 Liters
B. 1100 Liters
C. 1045 Liters
D. 1145 Liters
75. Capacity of sand box in the WDG 4 locomotive
A.1 Ft3/ box
B. 2 Ft3/ box
C.1.5 Ft3/ box
D.3 Ft3/ box
76. Capacity of sand box in the WDP 4 locomotive
A.
B.
C.
D.

1.5 Ft3/ box

02 Ft3/ box
01 Ft3/ box
3 Ft3/ box

77. What is the minimum continues speed of the WDG4

locomotive
A. 21.5 Kmph
B. 22.5 Kmph

Question Bank on HHP Diesel Locomotives

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C.20.5 Kmph
D.23.5 Kmph
78. Which type of bogie fitted in the HHP locomotive
A.
B.
C.
D.

Single suspension
Double suspension
Triple suspension
None of these

79. In the fuel oil system which type of injectors provided in

HHP locomotive
A.
B.
C.
D.

Unit injectors
Injectors with HP line
Injector with cam
None of these

80. In the two stroke engine the cylinder head of the engine
equipped with
A.
B.
C.
D.

Inlet & Exhaust valves

Only Inlet valves
Only Exhaust valves
None of these

81. In the HHP locomotive the Turbo charger is driven by

A.
B.
C.
D.

Exhaust Gas
Gear Train
Gear Train & Exhaust gas
None of these

82. In the WDP 4 & WDG4 locomotive engine how many

lube oil pumps used

Question Bank on HHP Diesel Locomotives

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18

A. One
B. Two
C. Three
D. Four
83. In the HHP locomotive, the air compressor is........
A.
B.
C.
D.

Air cooled
Water cooled
Oil cooled
None of these

84. In the WDP 4 & WDG 4 locomotive the coolant used in

compressor is
A.
B.
C.
D.

Engine coolant
Compressor coolant
Raw water
None of these

85. Air compressor lube oil sump capacity is

A.10 Liters
B.12 Liters
C.15 Liters
D.23 Liters
86. Air compressor in the HHP locomotive is
A.Single stage
B.Two stage
C.Three stage
D.Four stage
87. How many brake cylinders are used per bogie

Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

A.
B.
C.
D.

06 Nos
04 Nos
02 Nos
05 Nos

88. Which type of bogie is used in HHP locomotive

A. Fabricated bogie
B.Cast steel
C.High tensile cast steel
D.None of these
89. In HHP locomotive Air brake is controlled by
A.
B.
C.
D.

Mechanically
Electrically
Computer
None of these

90. Brake system in WDP4 &WDG4 loco is

A.
B.
C.
D.

28LAV-1
28LV-1
CCB-KNORR
None of these

91. In HHP locomotive the first schedule carried out after

A.
B.
C.
D.

One month
Three month
Four month
15 Days

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92. In WDP4/WDG4 when continuous wheel slip is experienced

due to locked axle
A. Isolate the defective TM
B. Isolate the defective speed sensor
C. Fail the loco immediately
D. Isolate the defective truck
93. In WDP4/WDG4 loco if water pressure is less
A. LLOB trips
B. Low water pressure button will trip
C. Crank case pressure button will trip
D. Both A and B
94. In WDP4/WDG4 loco while conducting air brake self test on
working control stand.
A. A9 handle should be kept in run position
B. SA handle should be kept in release position
C. LT switch in trail position
D. Both A and B
95. In WDP4/WDG4 loco while conducting air brake self test in
working control stand
A. A9 handle should be kept in FS
B. SA9 should be kept in release
C. Both a and b
D. LT switch in Trail
96. In WDP4/WDG4 loco while conducting BP leakage test L/T
switch should be kept in
A. Lead position
B. Trail position
C. TEST position
D. Helper

Question Bank on HHP Diesel Locomotives

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CAMTECH/GWL/M/HHP/QB/2014.

97. In WDP4/WDG4 loco Loadmeter will not respond if

A. GFB trips
B. AGFB trips
C. Both A & B
D. MAB trips
98. In WDP4/WDG4 loco when PCS is knocked out
A. MAB breaker should be recycled
B. TCC breaker should be recycled
C. Air drier breaker
D. Both A and B
99. In WDP4/WDG4 loco while conducting BP leakage test. L/T
switch should be kept in
A. Lead
B. Trail
C. Helper
D. Test
100. In WDP4/WDG4 loco speed sensor should be isolated when
A. False locked axle indication
B.Traction motor is burnt experienced
C. Axle locked condition
D. Both A and B
101. In WDP4/WDG4 loco if LLOB is in tripped position during
cranking engine will
A. Crank
B. Not Fire
C. Not hold
D. Not crank

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102. In WDP4 /WDG4 loco before conducting air brake self test
A. Recycle MAB
B. Recycle TCC1 and TCC2
C. Recycle Air drier breaker.
D. Both A & B
103. Location of EST in WDG4 loco is in
A. Control stand
B. control panel
C. Generator room
D. Accessories room
104. In WDG4 loco LLOB is located in
A. Accessories room
B. Compressor room
C. Engine power take off end
D. ECC3
105 In WDP4/WDG4 loco during false locked axle indication
A. Isolate the defective truck
B. Isolate the defective speed sensor
C. Isolate the defective TM
D. Fail the loco
106. In WDP4/WDG4 dead loco for quick release of loco brakes
open one side
A. MR equalising cock
B. BC equalising cock
C. BP equalising pipe
D. Both A & B

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107. Location of BS in WDG4 Loco is

A. On foot plate
B. In Accessories room
C. In LP's cab
D. In ECC 3
108. In WDP4/WDG4 Loco when lube oil temperature exceeds 124
degree centigrade.
A. Hot oil detector operates
B. LLOB operates
C. OSTA trips
D. Both A and B
109. In WDP4/WDG4 banker loco working control stand A9 should
be kept in
A. FS position
B. Run position
C. Release position
D. Emergency position
110. In WDP4/WDG4 loco engine should not be cranked when
A. Low water button is tripped
B. crank case pressure button is tripped
C. LLOB is in tripped
D. OSTA is tripped
111. In WDP4/WDG4 banker loco working CS, L/T switch should
be kept in
A. Lead
B. Trail
C. HLPR
D. Test

Question Bank on HHP Diesel Locomotives

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112. In WDP4/WDG4 loco defective speed sensor should be

isolated if
A. False locked axle indication
B. GR trips more than 3 times within
experienced 10 minutes
C. Any one TM is defective
D. Crow bar fires
113. Oil visibilty in bye pass sight glass indicates that
A. Primary filter is choked.
B. Spin on filter choked.
C. Lube oil filter choked.
D. Lube oil strainer choked.
114. In WDP4/WDG4 loco choking of fuel oil primary filter is
indicated by
A. Filter condition guage.
B. Oil visibility in bye pass sight glass.
C. Both A & B
D. Oil visibility in sight glass near to engine block
115. WDP4/WDG4 MU trailing loco L/T switches in both control
stand should be kept in
A. Lead
B. Trail
C. test
D. Helper
116. Oil lubricated TM gear case is provided in
A. WDM 2
B. WDM 3D
C. WDG 3A
D. WDP4

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117. If AGFB tripped in WDP4/WDG4 locos

A. Battery will discharge
B. Load meter will not respond
C. Both A and B
D Engine will shut down
118. Firing order of HHP Loco
A.1,8,9,16,3,6,11,14,4,5,12,13,2,7,10,15
B. 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
C. 1,3,5,7,9,11,13,15,16,2,4,6,8,10,12,14
D None of these
119. Model of Main Generator assembly in WDG4 Loco
A.TA17-CA6B
B. 5A-8147
C. Both A & B
D None of these
120. Model of AC AUX. Generator in WDG4 Loco
A.TA17-CA6B
B. 5A-8147
C. Both A & B
D None of these
121. Model of Traction Motor in WDG4 Loco
A.TA17-CA6B
B. 5A-8147
C. TB26221
D None of these
122. Speed of Traction Motor in WDG4 Loco
A. 3220 RPM
B. 2000 RPM
C. 904 RPM
D None of these
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123. Horse Power of Traction Motor in WDG4 Loco

A. 500KW
B. 600KW
C. 1430KW
D None of these
124. In WDG4 Loco Traction Motor is
A. Force air ventilated cooled
B. Oil cooled
C. Water cooled
D None of these
125. Nominal AC Aux. Generator Voltage in WDG4 Loco
A. 64VDC
B. 55V AC
C. 74VDC
D None of these
126. Rectified Voltage of AC Aux. Generator in WDG4 Loco
A. 64VDC
B. 55V AC
C. 74VDC
D None of these
127. Max Power output of AC Aux. Generator in WDG4 Loco
A. 18KW
B. 25KW
C. 20KW
D None of these
128. Total nos. of Batteries in WDG4 Loco Lead acid type
A. 10
B. 02
C. 08
D None of these
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129. Total nos of cell of Batteries in WDG4 Loco (Lead acid type)
A. 32
B. 50
C. 64
D None of these
130. Total nos of cell of Batteries in WDP4 Loco (Ni-Cadmium
type)
A. 32
B. 50
C. 64
D None of these
131. Voltage of Battery Cell in WDP4 Loco (Ni-Cadmium type)
A. 1.5V
B. 2.1V
C. 2.5V
D None of these
132. Voltage of Battery Cell in WDG4 Loco (Lead acid type)
A. 1.5V
B. 2.1V
C. 2.5V
D None of these
133. Total Voltage of Batteries in WDG4 Loco (Lead acid type)
A. 68V
B. 75V
C. 72V
D None of these
134. Total Voltage of Batteries in WDP4 Loco (Ni-Cadmium type)
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A. 68V
B. 75V
C. 72V
D None of these
135. Total nos of Batteries in WDP4 Loco (Ni-Cadmium type)
A. 10
B. 02
C. 08
D None of these
136. Total nos of Cylinder of Air Compressor in WDG4 Loco
A. 06
B. 03
C. 04
D None of these
137. Capacity of lube oil of Air Compressor in WDG4 Loco
A. 9.98Litter
B.12 Litter
C.06 Litter
D None of these
138. Model of WDG4. Loco
A.GT46MAC
B.GT46PAC
C.Both A & B
D None of these
139. Model of WDP4. Loco
A.GT46MAC
B.GT46PAC
C. Both A & B
D None of these
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140. Nos of Axles in WDP4 &WDG4 Locos

A.06
B.04
C.08
D None of these
141. How many Traction Motors in WDP4 Locos
A.06
B.04
C.08
D None of these
142. In WDP4 Locos Traction Motor fitted on
A. Axles no.1, 2 & 5, 6
B. All Axles
C. Axles no.1, 2 & 3, 4
D None of these
143. In WDP4 Locos Engine starting switch is located
A. ECP
B. Engine room
C. Control stand
D None of these
144. In WDG4 Locos Engine starting switch is located
A. ECP
B. Engine room
C. Control stand
D None of these
145. In WDG4 Locos RADAR is located
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A. Between Rear bogie & Fuel tank

B. Engine room
C. Between Front bogie & Fuel tankD None of these
146. In WDP4 Locos RADAR is located
A. Between Rear bogie & Fuel tank
B. Engine room
C. Between Front bogie & Fuel tank
D None of these
147. Blended brake, Low water level switch, Temperature gauge &
color code are provided in
A. WDP4
B. WDG4
C. Both A & B
D None of these
148. Starting Tractive effort of WDG4 Loco is
A. 540KN
B. 270KN
C. 400KN
D. 200KN
149. Starting Tractive effort of WDP4 Loco is
A. 540KN
B. 270KN
C. 400KN
D. 200KN
150. Max. Continuous Tractive effort of WDP4 Loco is

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A. 540KN
B. 270KN
C. 400KN
D. 200KN
151. Max. Continuous Tractive effort of WDG4 Loco is
A. 540KN
B. 270KN
C. 400KN
D. 200KN
152. Max. Dynamic Tractive effort (Speed 40 KMPH to 0) of
WDG4 Loco is
A. 540KN
B. 270KN
C. 400KN
D. 200KN
153. Max. Dynamic Tractive effort (Speed 68 KMPH to 1) of
WDP4 Loco is
A. 540KN
B. 270KN
C. 160KN
D. 200KN
154. Dead engine cut-off cock & C3W Distributor valve in
WDP4/WDG4 Locos are located in
A. Nose compartment
B. Driver Cabin
C. Engine compartment
D. Radiator compartment

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155. Lead/Trail Air Brake Set-up Switch mounts on

A. the lower right corner of the air brake controller
B. Nose compartment
C. Engine compartment
D Radiator compartment
156. How many braking position of A-9 valve have.
A. 05 breaking position
B. 04 breaking position
C. 03 breaking position
D. 01 breaking position
157. How many braking position of SA-9 valve have..
A. 03 position
B. 02 position
C. 05 position
D. 01 position
158. In minimum reduction position of A-9 brake valve BP should
drop up to (PSI)...
A. 0 to3 PSI
B. 4 to 7 PSI
C. 8 to 11 PSI
D. 12 to 15 PSI
159. In WDG 4 if false locked wheel indication is experienced
A. Isolate defective sensor
B. Isolate defective truck
C. Isolate defective TM
D. Fail the loco

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160. In WDP4/WDG4 if GR (power) trips continuously three times

within 10 minutes
A. Truck isolation is to be done
B. Defective TM is to be isolated
C. Defective speed sensor is to be isolated
D. Fail the Loco
161. In WDP4/WDG4 engine cranking but not starting due to
A. EPD Tripped
B. Governor not advancing fuel racks
C. No fuel reaching in the cylinders
D. Any one of above
162. In WDP4/WDG4 thick black smoke and poor hauling due to
A. Low fuel oil pressure & Low booster air pressure
B. Faulty turbo
C. Faulty injectors.
D. Any one of above
163. Temperatures of Engine exhaust gas reach up to
A. 538C
B. 438C
C. 338C
D. None of these
164. Main parts of KNORR/NYAB CCB 1.5 Brake system are
A. VCU & CRU
B. PCU & KE Valve
C. BVC
D. All of above
165. Total no. of Keys on EM2000 Display Panel are
A. 8
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B. 16
C.10
D.12
166. No. of Radiator fan in WDP4 &WDG4 Locos
A.02
B.01
C.03
D.None of these
167. No. of Grid Blower Motors in WDP4 &WDG4 Locos
A.04
B.02
C.03
D.None of these
168. No. of Brake blocks in HHP Locos
A.24
B.12
C.08
D.None of these
169. When Computer controlled Breaker is recycled the disabled
speed sensor.
A. Remain Disabled
B. Gets enabled but not to be disabled again
C. Remain disabled but to be enabled
D. Get enabled automatically & has to be disabled
170. Brake warning Indication
A. Excessive Main Alternator

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B. Excessive Breaking current in DB

C. Excessive Air Breaking
D. Excessive Main Generator Current
171. When Reversor is thrown in forward direction, Sanders of
A. No (3) & (6) only work
B. All sanders work
C. sanders works irrespective of Reversor
D. No (1) & (4) wheels only work
172. Battery charger rectifies AC to DC of
A. Aux gen output
B. Companion Alternator output
C. Main Alternator output
D. None of the above
173. B.P continuity not getting to train from a working WDG4 Loco
due to
A. Additional BP COC closed in train end
B. BP angle cock defective
C. In train end no BP pressure in loco
D. All of the above
174. On run GR Trip then the engine
A. Will shut - down
B. Comes to idle
C. No effect on engine
D. No effect on loco
175. What is the type of lubrication system being used in diesel loco

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A. Gravity lubrication
B. Force Feed lubrication
C. Force Feed & splash lubrication
D. Capillary lubrication
176. To check engine sump level, engine should be in condition
A. Shout down
B. 4th Notch
C. Idle
D. 2nd Notch
177. Each Traction Motor provided with
A. One speed sensor
B. One speed sensor & one temp sensor
C. One temp sensor
D. Two speed sensor
178. Diameter of new wheels in WDP4 locos is
A. 1090mm
B. 1092mm
C. 1100mm
D. 1080mm
179. When there is communication link failure and micro air
breaker is active, the loco will work
A. As lead in
B. Only in trail mode
C. In both modes
D. In helper mode
180. To recover PCS, it is compulsory to keep

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A. Both throttle handle in idle

B. Any one throttle handles in idle
C. Leading control stand throttle handle in idle
D. Leading throttle handle in idle & reversor in neutral
181. The companion alternator runs at the same speed as
A. Engine rpm
B. Aux gen rpm
C. Turbo rpm
D. Locomotive rpm
182. MR Pressure dropping on run due to
A. Air dryer defective
B. Auto drain valve malfunctioning
C. Break cylinder pipe damaged
D. All of above
183. WDP4/WDG4 Hand break applies on wheels
A. R4, R5
B. R4, L4
C. R4, R6
D. L4, L5
184. Break cylinder pressure in WDP4/WDG4
A. 5.2 kg /sq.cm
B. 4.8 kg /sq.cm
C. 3.8 kg /sq.cm
D. 3.5 kg /sq.cm
185. MR pressure not building up due to
A. MR EQ COC in open condition
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B. Pipe link chocked in MRPT system

C. Defective MVCC
D. All of above
186. What is the effect of auto flasher operation
A. Engine comes to idle
B. auto flasher indication
C. Buzzer
D. All of above
187. ER/BP not creating
A. LT switch defective
B. Air break failure
C. Penalty not reset
D. All of above
188. Lube oil pumps provided In HHP
A. Scavenging pump
B. Piston cooling pump & main lube oil pump
C. Turbo lube pump
D. All of above
189. Radiator fan controlled by
A. EM2000
B. TCC
C. EM2000 & TCC
D. None of these
190. Load demand of the traction motor is met by
A. EM2000
B. TCC
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C. EM2000 & TCC

D. None of these
191. Total No. of After coolers inWDP4/WDG4
A.4
B.3
C.2
D.5
192. Total no. of Water expansion tanks inWDP4/WDG4
A.1
B.2
C.3
D.4
193. In WDP4/WDG4 BA consists of two zones
A. Green zone & red zone
B. Green zone & yellow zone
C. yellow zone & red zone
D. None of these
194. In WDP4/WDG4 slipped pinion will be indicates clearly by
A. Loco not moving
B. Train not hauling loads
C. High motor rpm in computer feedback
D. None of these
195. Head light rating in WDP4/WDG4 loco is
A. 100W 32V
B. 200W 30V
C. 250W 32V
D.250W 34V

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196. Governor is used in HHP Loco

A. GE Governor
B. WW Governor
C. Both (A) & (B)
D. None of these
197. Type of cooling water pump used in WDP4/WDG4
Locomotives
A. Centrifugal
B. Reciprocating
C. Positive displacement
D. None of these
198. OSTA in WDP4/WDG4 trip at minimum
A.960RPM
B. 1000RPM
C. 1020
D. None of these
199. Flasher light working voltage
A. 72V
B. 12V
C. 24V
D. None of these
200. Nos of Main bearings available in WDP4 Locomotives
A. 12
B. 14
C. 10
D. None of these

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HHP LOCO True/False Questions

1. In WDP4/WDG4 loco if LLOB is in tripped position during
cranking, engine will crank but not fire.
Answer: False
2. In WDP4/WDG4 loco if low water button trips engine should not
be cranked.
Answer: False
3. InWDP4/WDG4 loco if hot oil detector operates LLOB will trip
and engine will shut down
Answer: True
4. In WDP4/WDG4 loco if power ground is experienced during
dynamic brake disable the truck and work
Answer: False
5. In WDP4/WDG4 locos during locked axle isolate the defective
traction motor and work further
Answer: False
6. In WDP4/WDG4 loco during cranking if low water pressure
button is tripped engine should not be cranked
Answer: False
7. In WDP4/WDG4 loco inter cooler is cooled by water.
Answer: True
8. In WDP4/WDG4 loco if engine is shutting down due to hot oil
detector operated fail the loco immediately.
Answer: True
9. In WDP4/WDG4 banker loco working control stand L/T switch
should be kept in LEAD position.

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Answer: False
10. In WDP4/WDG4 loco MAB breaker should be recycled when
MR pressure is not creating.
Answer: False
11. In WDP4/WDG4 loco if fuel oil pressure across primary filter
exceeds 30 psi bye pass valve will open to bypass primary filter.
Answer: TRUE
12. In WDP4/WDG4 during air brake self test, working control
stand -A9 handle should be kept in emergency position
Answer: False
13. In WDP4/WDG4 loco during cranking if OSTA is in tripped
position engine will not crank.
Answer: False
14. In WDP4/WDG4 if loco shut down due to low crank case
button operation loco should be failed immediately.
Answer: True
15. In WDP4/WDG4 loco while conducting BP leakage test L/T
switch should be kept in lead position.
Answer: False
16. In WDP4/WDG4 loco banker loco L/T switch should be kept in
LEAD position in working control stand
Answer: False
17. In WDP4/WDG4 loco if low crank case button is in tripped
position engine should not be cranked.
Answer: True

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18. In WDP4/WDG4 loco if GR trips more than 3 times within 10

minutes defective truck should be disabled
Answer: True
19. In WDP4/WDG4 loco dont touch any high voltage equipment
and Danger marked components without discharging the D.C. link
voltage
Answer: True
20. The turbo charger is primarily used to increase engine horse
power and provide better fuel economy through the utilization of
exhaust gases.
Answer: True
21. In WDP4/WDG4 the starting of the engine is established
through two starting motors.
Answer: True
22. In HHP Locos Engine should be Pre-Lubricated, If it has been
shut down more than 48 hrs.
Answer: True
23. The Companion Alternator is coupled directly to the Turbo
Super Charger
Answer: False
24. The Auxiliary Generator is driven by the Diesel Engine gear
train at three times of engine speed
Answer: True
25. MAS 696 system designed and developed by SIEMENS.
Answer: False
26. In WDP4/WDG4BAP from idle to 8th notch
Answer: True

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27. Units injector are consisting of fuel injector and Nozzle with the
same body
Answer: True
28. Turbo provided in free end in HHP locos
Answer: False
29. IN WDP4/WDG4 Locos EM2000 indicates MR-1 Pressure
Answer: True
30. IN WDP4/WDG4 Locos the gauge indicates MR-2 Pressure
Answer: True
31. IN WDP4/WDG4 Locos for any reasons if the PCS opens auto
flasher light starts flashing
Answer: True
32. OST operates when locomotive speed becomes more than 100
kmph.
Answer: False
33. BC indicator of GM locomotive is fitted in ECC-1 panel
Answer: True
34. Dead engine COC of GM loco should be closed for dead
attached Locomotive.
Answer: False
35. Recycling for Circuit breaker is done when any circuit breaker
does not response.
Answer: True
36. Fuel oil tank capacity of WDG-4 loco is 5000 Lts.
Answer: False

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37. L/oil cooler of WDP-4 loco is fitted in engine accessories

compartment.
Answer: True
38. Air flow Indicator indicates the leakages of MR pressure.
Answer: True
39. Loading-unloading of compressor is controlled by MVCC in
GM Locomotive.
Answer: True
40. Idle rpm of WDG-4 loco is 400.
Answer: False
41. Governor circuit breaker is provided in white labeled circuit
breaker row.
Answer: True
42. Traction Rod is a component of under truck.

Answer: True
43. Radar gives the speed feedback to computer.

Answer: True
44. Radiator fan motors of GM Loco are DC motors

Answer: False
45. When locked wheel detection message displays on computer, engine shuts
down

Answer: False
46. In GM loco there is one turbo after cooler.

Answer: False
47. Never switch off computer CB while locomotive is moving.

Answer: True

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48. Engine temperature sensing probe (ETP) provided in water pump outlet
always act as per computer request

Answer: True
49. GM loco compressor is motor driven.

Answer: False
50. Auxiliary Generator of GM Loco is driven through a motor.

Answer: False
51. Dead engine cut-out cock of GM loco is in nose compartment.

Answer: True
52. In GM loco has a V-type 16 Cylinder engine.

Answer: True
53. Maximum Loco brake cylinder pressure of GM loco is 5.2 Kg/Cm2

Answer: True
54. WDP-4 locomotive has 4 nos. of traction motors.

Answer: True
55. In the compressor of GM Loco, there are 02 nos. of air intake filter.

Answer: True
56. Over charging feature is in GM loco works when auto brake handle is kept in
Release position.

Answer: True
57. GM loco is an AC-AC transmission type locomotive.

Answer: True
58. Blended brake cut off switch is provided in WDP-4 locomotive.

Answer: True
59. Rectifier converts AC current to DC current.

Answer: True
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60. In GM Locomotive L/T switch has 03 positions

Answer: False
61. Water expansion Tank Capacity of WDP4 Loco is 510 lts

Answer: False
62. Dead engine cut-out cock should be closed in dead attach Locomotive.

Answer: False
63. Air intake filter of GM loco is fitted in Compressor Compartment.

Answer: False
64. WDG4 is a AC/AC transmission locomotive

Answer: True
65. TLPR is a black label circuit breaker.

Answer: False

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HHP Loco Fill in the blank Questions

1. In WDP4/WDG4 MU trailing loco both control stand A9 should be
kept in .. . . . . . . . position.
Answer : Full Service
2. In WDP4/WDG4 loco non-working control stand L/T switch should
be kept
in . . . . . . . . . . . . . . . . position.
Answer: Trail
3. Battery knife switch of WDP4 loco is located at . . . . . . . . . . . . . .
Answer : Foot plate Loco left
4.Capacity of lube oil system in high horse power WDG4 locos is . .. . .
. . . . . . . . . .Ltrs.
Answer : 1457
5. In WDP4/WDG4 locos to create vacuum in engine crank case
instead of CCEM. . . . . . . . . . . . . . . .is provided.
Answer : Eductor tube
6. In WDP4/WDG4 if OSTA is in tripped condition during cranking
engine will not. . . . . . . . . . . . . . . . . . . . . . . .
Answer: Fire
7. In WDG4 banker loco working control stand L/T switch should be
kept in. .. . . . . . . . . . . . . Position
Answer: Helper
8. In WDP4/WDG4 dead loco dead man coc should be kept in . . . . . ..
. . . . .. . . Position
Answer: open
9.In WDP4/WDG4 loco if LLOB is in tripped condition during
cranking engine will not . . . . . . . . . . . . . . . .
Answer: Crank
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10. In WDP4/WDG4 loco if PCS knocks out and BP not creating,

before conducting Air brake self test . . . . . . . . . . . . . . . . has to be
recycled.
Answer: MAB
11. In WDP4/WDG4 loco if AGFB breaker trips . . . . . . . . . . . . . . . .
will not respond
Answer: Loadmeter

12. What is the full form of IGBT

Answer: Insulated gate bipolar transistor.
13. What is the full form of BL Key
Answer: Button Lever Key
14. What is the full form of TFT Display.
Answer: Thin Film Transistor Display
15. LCC Means..

Answer:

Locomotive Control Computer

16. GRNTCO Means..

Answer: Ground Relay Not Cut Out.
17. GFD Means..
Answer: Generator Field Decay Contactor
18. EFCO Means..
Answer: Emergency Fuel Cut Off/Engine Stop Switch
19. MRPT Means..
Answer: Main Reservoir Pressure Transducer
20. MVCC Means..
Answer: Compressor Control Magnet valve

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21. ST Means..
Answer: Starting Contactor
22. STA Means..
Answer: Starting Auxiliary Contactor
23. RAPB Means..
Answer: Restricted Air penalty Break switch
24. In starting Turbo Super Charger is driven by ..
Answer: Gear Train
25. After 6th Notch Turbo Super Charger is driven by
..

Answer: Exhaust Gas

26. The main Generator assembly is directly coupled with the

..of Diesel Engine
Answer: Main Crank Shaft
27. The main Generator assembly has two Alternators
..
Answer: Traction Alternator and Companion Alternator
28. Crow Bar is a ..Which provide safety to TCC1, TCC2
Answer: Safety Device
29 is provided for lubricating the turbo bearing before
cranking and after shut down.
Answer: Turbo lube pump
30. Trace air bubble in fuel by.
Answer: Return sight glass

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31. Capacity of Battery in WDG4 Locomotive is -------------Amp. Hour.

Answer: 500(8Hour)
32. The brake system in WDG4 locomotive is ---------------------Answer: CCB
33. In release position of Auto brake handle (GM Loco), brake
pipe pressure is -------Answer: 5.7 kg/cm
34. In GM loco gear case is used for lubrication.
Answer: Oil RR460
35. To recover penalty, auto brake handle is placed in
emergency position for ---- sec.
Answer: 10 sec
36. Nos. of connecting rod in WDP4 loco engine are --------------------Answer: 8
37. Turbo L/oil pump of GM loco is provided in ---------------compartment
Answer: Engine
38. Hand brake is fitted near -------------------------compartment
Answer: Engine Accessories
39. Auto brake valve has ------------------positions
Answer: 5
40. The oil used in compressor is--------------Answer: SP100RR (M/S-IOC)

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41. AC/AC type transmission provided in -------------------locomotive

Answer: HHP
42. Blended braking is provided in -----------------Locomotive.
Answer: WDG4
43. TLP circuit breaker is fitted on -------------panel.
Answer: Circuit Breaker Panel
44. -------------Oil used in engine sump of WDG4 loco.
Answer: RR520 or MR RR517M
45. EPD is fitted in ------------------compartment.
Answer: Engine
46. Ground relay is a ---------------------device.
Answer: Safety
47. Gear ratio of WDG4 loco is ---------------------Answer: 90:17
48. EFCO is used for -----------------the Locomotive.
Answer: Shuts down
49. EPD is provided in --------compartment. It is a -------------device.
Answer: Engine, Safety Device
50. To recovery the alerter penalty Auto brake handle is kept
in -------------position.
Answer: Emergency
51. The 8th notch RPM of WDG 4 locomotive is---------------Answer: 904
Question Bank on HHP Diesel Locomotives

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53

52. In GM loco -------------and --------------- circuit breakers are

in yellow label
Answer: Turbo, CCB
53. In GM Locomotive Compressor air intake is fitted in --------- compartment.
Answer: Radiator
54. GM loco is provided with ----------nos of radiator fan. ------------nos. of BKBL
Answer: 2, 2
55. Isolation switch has ------------position
Answer: 2
56. Speed feedback of GM loco is received through -----------------------Answer: RADAR
57. The brake system of GM loco is ----------------------Answer: CCB
58. During cranking isolation switch of GM loco should be in -----------------position
Answer: Isolate
59. ----------------- Oil is used as lubricant in T.M gear case of
GM loco.
Answer: RR460
60. In GM Loco turbo is cooled by --------------& initially driven
by--------------Answer: Oil, Gear Train
61. Yaw dumper is provided ------------nos. in each truck
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Answer: 2
62. The type of truck used inWDP4 locomotive ---------------.
Answer: HTSC
63. L/oil cooler of WDP-4 locomotive is in ----------------------------compartment
Answer: Engine Accessories
64. Cranking of WDG4 locomotive is done by -----------------------------.
Answer: Two starting motor

Question Bank on HHP Diesel Locomotives

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55

HHP Loco Match the following

(i)

SN.

Column A

Column B

4000HP

Air brake train

Twin After cooler

Engine Cranking

TLPR

GM Locomotive

Duel starter motor

GM turbo

GM Compressor

Water cooled

LLOP

Turbo bearing cooling

MRPT

Loading Unloading of
compressor

Auto brake Testing

High crankcase pressure

EPD

L/oil system

10

OST

Engine maximum speed

control

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56

(ii)
SN.

Column A

Column B

TCC-1

Air brake train

EM- 2000

Temperature switches

CCB

WDG4/WDP4

BCI

Battery charging circuit

Feed pipe

ETP-1 & ETP-2

Baggi type filter

Dynamic brake grid

TCC-1

Alerter system

EFCO

10

Nose compartment

VFD

Question Bank on HHP Diesel Locomotives

Vigilance control
GM turbo
GM Locomotive

CAMTECH/GWL/M/HHP/QB/2014.

57

(iii)
SN.

Column A

Column B

ECC 3

Braking force

LT switch

Radiator fan circuit breaker

Baggie type filter

Crew message

Tractive effort meter

5.2 kg/cm2

EM- 2000

Engine stop

TM output

Equalizing reservoir
pressure
HOD

Charged air system

ECC-2

4-position

Radar

Auxiliary circuit breaker

10

BP reduction

Loco speed

Question Bank on HHP Diesel Locomotives

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58

(iv)
SN.

Column A

Column B

Bail off

Engine Starting

Yellow label circuit

EEC 1

breaker
3

MVCC

Direct brake

Dual motor

Auto brake +Dynamic brake

Blended Brake

Air bake fault code

VFD

Compressor loading /
unloading

Companion Alternator

Engine Governor trouble

Inter cooler safety

MR pressure drops

valves blowing
9

Loco hunting

Three phase AC motor

10

TCC blower

Main alternator excitation

Question Bank on HHP Diesel Locomotives

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(v)
SN.

Column A

Truck 1

Breather valve

PCS

Column B
Enable / Disable
Battery knife switch
Fuel flow seen in relief
valve glass bowl

Fuse 800 Amp

Compressor crankcase
Pressure

Bail-off

T/ Motor

AC motor

Through EM-2000

Auto brake Testing

Auto flasher ON

Indication light
Centralized air filter
Compartment

Dust exhauster blower

PCS open

motor
10

Low hauling

Question Bank on HHP Diesel Locomotives

Direct Brake

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(vi)
SN.

Column A

Column B

CPZ

Radiator Fan drive

Vertical dampers

Nose compartment

IPR

TCC protection

24 D valve

Feed pipe

Throttle limit 6th notch

12 Nos.

Less MR pressure

Hot Engine

Auxiliary Generator

Defect in fuel pump

No fuel in regulating

White colored humidity

glass bowl

indicator

A.C motor

TCC recycle

10

Torque difference

Low voltage circuit power

supply

Question Bank on HHP Diesel Locomotives

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61

HHP Loco - What happens when

1. Brake pipe pressure drops on run.
2. Bell-off button is applied during emergency braking.
3. Trouble in axle rotation when loco is running.
4. Amphenol plug is loose during run.
5. Engine water temperature rises at 97C
6. High crankcase pressure button of EPD trips.
7. L/oil pressure come down below 2.2 kg/cm2 at 8th
notch.
8. MRPT cut out cock is closed.
9. Turbo air intake filter is too dirty.
10. Brake pipe pressure dropped on run.
11. Fuel flows through relief valve.
12. Low L/oil trip plunger comes out during engine run.
13. Engine crankshaft rotation reaches to 1045 r.p.m.
14. BP and FP interchanged.
15. What will be the main indication noticed in Loco in
case of ACP?
16. Air box cover loose during run.

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17. No fuel in regulating valve glass bowl.

18. Low water pressure in engine cooling system
19. Power ground experienced
20. Crow bar firing message in EM-2000.
21. Fuel primary filter is chocked.
22. Fuel Secondary filter is dirty
23. MRPT is malfunctioning.
24. Brake pipe pressure is dropping below 2.5 kg/cm2.
25. No Companion alternator output message
26. Number- 2 truck is in disable condition
27. Defect in MVCC.
28. No Auxiliary generator output
29. Dead engine cutout cock is in open position in lead
Loco
30. LT switches are in lead position in both control stands.
31. In Duel cab loco isolation switch is in isolate position in
Non-working cab.
32. TM speed sensor is loose.

Question Bank on HHP Diesel Locomotives

CAMTECH/GWL/M/HHP/QB/2014.

33. Leakage of oil from TM gear case.

34. TM temperature sensor turned out.
35. LR percentage is less than 100%.
36. Power ground during dynamic brake application
37. Power ground during Auto brake application
38. Radiator fan circuit breaker tripped
39. Auxiliary circuit breaker in ECC -2 is tripped.
40. Crankcase Lube oil level is too low.

Question Bank on HHP Diesel Locomotives

63

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HHP Loco - Choose Odd one

1. Traction motor, Dust bin blower motor, Radiator fan
motor, Braking contact blower motor.
2. HOD, EPD, LLOP, IPR
3. WDP4-D, WDP4-B, WDG4, WDP4
4. Oil used in GM Loco- RR- 520, SHC- 634, SP- 100,
NELCO- 210
5. FCF, FCS, EPD, RFCB,
6. CCB, VFD, CPZ, DVR
7. MVCC, Compressor, T/ Motor, MRPT
8. CBC, Dead engine cut-out cock, Additional transition
rod, Toggle.
9. Locked wheel, T/ Sensor, T/ Motor, TLPM
10. Cylinder liner, Piston, T/M Gear-case, Rocker arm
11. Fuel oil pressure, Penalty, BP Pressure, , PCS
12. Primary fuel filter, Baggi filter, Spin-on filter, Lube oil
strainer
13. Power ground, No power, Engine shutdown, Engine
Idle
14. Engine Idle, AGFB, Gov. Amphenol plug, Penalty
15. Starting contactor, ECC-2, AGFB, MRPT

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ANSWER SHEET
Q. No. ANSWER

Q. No.

ANSWER

Q. No. ANSWER

1.

26.

51.

2.

27.

52.

3.

28.

53.

4.

29.

54.

5.

30.

55.

6.

31.

56.

7.

32.

57.

8.

33.

58.

9.

34.

59.

10.

35.

60.

11.

36.

61.

12.

37.

62.

13.

38.

63.

14.

39.

64.

15.

40.

65.

16.

41.

66.

17.

42.

67.

18.

43.

68.

19.

44.

69.

20.

45.

70.

21.

46.

71.

22.

47.

72.

23.

48.

73.

24.

49.

74.

25.

50.

75.

Question Bank on HHP Diesel Locomotives

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Q. No.
76.

ANSWER Q. No.
C
101.

66

ANSWER
D

Q. No. ANSWER
126.
C

77.

102.

127.

78.

103.

128.

79.

104.

129.

80.

105.

130.

81.

106.

131.

82.

107.

132.

83.

108.

133.

84.

109.

134.

85.

110.

135.

86.

111.

136.

87.

112.

137.

88.

113.

138.

89.

114.

139.

90.

115.

140.

91.

116.

141.

92.

117.

142.

93.

118.

143.

94.

119.

144.

95.

120.

145.

96.

121.

146.

97.

122.

147.

98.

123.

148.

99.

124.

149.

100.

125.

150.

Question Bank on HHP Diesel Locomotives

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Q. No. ANSWER Q. No.

67

ANSWER

Q. No.

ANSWER

151.

174

197

152.

175

198

153.

176

199

154.

177

200

155.

178

156.

179

157.

180

158.

181

159.

182

160.

183

161.

184

162.

185

163.

186

164.

187

165.

188

166.

189

167.

190

168.

191

169.

192

170.

193

171.

194

172.

195

173.

196

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CAMTECH/GWL/M/HHP/QB/2014.

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OUR OBJECTIVE
To
upgrade
maintenance
technologies and methodologies and
achieve improvement in productivity
and performance of all Railway
assets and man power which interalia
would
cover
reliability,
availability, utilization and efficiency.

If you have any suggestions and any specific comments,

Please write to us.

Contact person

: Director (Mech.)

Postal address

: Indian Railways,
Centre for Advanced
Maintenance Technology,
Maharajpur, Gwalior.
Pin code - 474 005

Phone
Fax

0751- 2470890, 0751-2470803

0751- 2470841

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