1. Flasher light modification
in diesel locos is done for?
Better illumination of
flasher light
Modified flasher light
Safety in case of train
parting
None of the above
2. When emergency brake
application is done through A-9 in locos with
flasher light modification. Condition of loco comes
to?
LOCO comes to Idle and
nothing else happens
Loco comes to Idle and
flasher light is on
Loco comes to Idle, flasher
light is on & buzzer blows
Loco does not come to Idle,
flasher light is on & buzzer blows
3. How many braking position of
A-9 valve?
05 braking position
04 braking positions
03 braking positions
01 braking position
4. Permissible blockage of
vacuum train pipe in cm is?
0 cm
Up to 8 cm
Up to12cm
Up to 20 cm
5.Duplex check valve operates
when MR pressure reaches pressure (kg/cm2) ?
5 kg/cm2
6 kg/cm2
Always open 10
kg/cm2
6. Twin pipe system in locos
has what advantage?
Better acceleration
Loco to bring to Idle
Achieving less braking
distance
Maintaining MR
7. When H-5 or HB-5 valve
operates which air supply goes to PCS?
MR Pressure
HS-4 Pressure
FP Pressure
BP Pressure
8. When big diaphragm of VA-1 B
control valve gets punctured, what action will
happen?
Vacuum will drop to zero
Vacuum will not drop down
Vacuum will drop partially
None
9. R-6 relay valve is fitted in
loco for?
Quick MR charging
Quick working of AFM valve
Quick vacuum building
By-passing AFMV
10. The standard colour of
humidity indicator in air dryer is ?
Orange
Purple
Blue
White
11. Purge valve in air dryer is
for?
Maintaining supply of MR
pressure
Removing moisture
Creating vacuum in air dryer
Charging air dryer
12. When 7.5 mm dia hole palm
end is fitted, the change in BP pressure is?
Should remain same in one
minute
Should fall below 4.0 kg/cm2
in one minute
Should not fall below 4.0
kg/cm2 in one minute
Should come down to 3 cm in
one minute
13. In dual brake loco, if
combined strainer cock is kept in close position,
action will be noticed?
Vacuum will not be shown in
gauge
MR pressure will drop
Synchronisation in loco
will be cut off
BP will drop
14. Auto Drain valve blows
during?
Loading period of compressor
Unloading period of
compressor
Alongwith ‘J' safety valve
When unloading is not working
and pressure increases above 10.5 kg/cm2
15. GD 80E filter is fitted
between which valve?
Between V A-1 B control valve
and VA-1 release valve
Between train pipe and VA
1 release valve
Between VA-1 B control valve
and other end open to atmosphere
Between A-9 valve and SA-9
valve
16. Add C-2 is used in air brake
system for?
MR pipe charging
BP pipe charging
Vacuum train pipe charging
Feed pipe charging
17. No. of positions in MU2B
valve is (are) ?
One position
Two positions
Three positions
Four positions
18. How many 'O' rings are
fitted in spool valves of VA1 B control valve?
02
03
04
05
19. In Mail/ Express train, how
much vacuum is prescribed by RDSO in engine (in cm)
?
47 cms.
50 cms.
53 cms.
55 cms
20. In WDP2 locos, how many
horns are fitted on its hood?
02 nos
04 nos
06 nos
08 nos
21. Vacuum test plate hole dia
is (in MM) ?
6.5mm
7.0 mm
7.5mm
8.0 mm
22. Exhaust Choke size of Add
C-2 relay valve is (in MM)?
5.0mm
5.5mm
6.0 mm
6.5mm
23. Wheel dia of Hasler
(upgraded) recording & indicating system is set
through?
Recorder
Indicator
Pulse generator
Signal convertor
24. How many sensors are
required to run both Recorder & Indication in Laxven
System of Pulse Generator?
One
Two
Three
No sensor is required
25. Which of these you will not
find in Medha Recording & Indicating system?
Recorder
Pulse Generator
Indicator
Signal Convertor
26. Clock key winding is
required (in Medha Recording System) in?
Every 24 hours
Every 12 hours
Once in a week
Not required at all
27. During service, speed sensor
to junction box cable of Medha System is broken,
graph obtained after this will have the marking of?
Time only
Speed only
Both time & speed
Neither time nor speed
28. Which type of engine WDM2 is
?
One stroke
Two stroke
Three stroke
Four stroke
29. In four stroke engine,
exhaust gases come out through?
Exhaust valve
Ports
Inlet valves
Delivery pipe
30. In suction stroke piston
travels in which direction?
Down ward
Upward
Clock wise
Anti clock wise
31. What is the piston
arrangement in engine block of WDM2c ?
Vertical
Horizontal
'V' shape
Round
32. In WDP2 locos, how many Main
Bearing journals are in one crank shaft ?
7
6
8
9
33. After one completed round of
split gear, how many rounds of cam gear takes?
Half round
3/4 round
Full round
1-1/2" round
34. Teeth of split gear meshes
with?
Water pump gear
Main generate gear
Cam gear
Tacho Generator gear
35. How many cam segments are
fitted in WDM2c loco?
6
7
8
10
36. How many crank case covers
are fitted on WDP2 locos?
16
14
15
13
37. In WDM2c loco, how many
counter weights are on one crank shaft ?
2
3
4
1
38. In WDP2 loco, which type of
lubrication system in used?
Splash
Forced
Self
None of these
39. Main crank shaft vibration
damper is fitted near main bearing (in WDM2) locos?
5
7
9
1
40. If you are watching inlet
cam lob on any engine, which cam lob you are
watching?
Left one
Right one
Centre
None of these
41. Cam shafts are joints with
the help of ?
Nuts and bolts
Studs & nut
With the help of key
Slot & Cotter
42. What is the condemning size
of liner?
228.68 mm
228.70 mm
228.72 mm
228.74 mm
43. How many cylinder head studs
are fitted in WDP1 loco?
72
76
80
84
44. What is the final torquing
value of Cyl. Head stud nut?
450 ft. lb.
500 ft. lb.
550 ft. lb.
600 ft. lb.
45. What is the OST RPM of WDP2
locos?
1100 RPM
1150 RPM
1160 RPM
1200 ± 20 RPM
46. What should be minimum run
out of extension shaft?
.005"
.003"
.001"
.0000"
47. Water pump gets drive from?
Split gear
Cam gear
Extension shaft gear
Main generator gear
48. Booster pressure is pressure
of air in ?
Crank case
Exhaust gas pressure
Inlet gallery air pressure
Compresses air pressure
between Cyl. Head & Piston
49. In WDM2c loco, how many 'S'
pipes are fitted for lubrication of crank shaft?
6
7
8
9
50. What is the lube oil sump
capacity of WDP1 locos having low sump?
600 Ltrs.
650 Ltrs.
800 Ltrs.
760 Ltrs
51. In WDM2C loco thrust bearing
is fitted at location?
No.1 Upper
No.4 Upper
No.5 Lower
No. 9 Upper
52. Honey combing is related
with?
Cyl. Head
Piston
Liner
Connecting Rod
53.What is the maximum allowed
main generator deflection?
± .0005"
± .001"
± .0007"
±.0008"
54. Expressor efficiency needle
valve not lifting up indicate?
Less lube oil pressure
Excess lube oil pressure
Proper loading unloading
Improper loading unloading
55. TSC surging on higher
notches is due to ?
Excess fuel rack
Chocked air maize filter
Less area of nozzle ring
Any of the above
56. Hammering sound coming from
engine is due to ?
Exhaust Valve bend
Fuel cam worn out
X-Head roller worn out
Any of the above
57. Smoke coming from 'P' hole
of Cyl. Head indicates?
Injector not seated on
seat
Over torquing
Injector crack
Injector not fitted
58. Milky water coming from leak
off pipe of Cyl. Head indicate?
External crack
Stud sleeve crack
Injector sleeve crack
Exhaust port crack
59. TSP treatment is done to ?
To remove scaling
To decrease the cooling
efficiency
To avoid any chemical
reaction
To improve chloride value
60. The temperature difference
between the two consecutive main bearing should not
exceed by?
5°
2°
10°
20°
61. Which item increases the
sodium (Na) contents in lube oil?
Fuel leakage in lube oil
Water leakage in lube oil
Lube oil leakage in fuel oil
None of these.
62. Which item increases the
copper content in lube oil ?
Piston wear
Liner wear
X-Head floating bush wear
Silicon
63. Engine crank case vacuum is
not building up due to ?
Liner chrome plating worn
out
Fuel motor not working
Dust blower not working
Engine RPM less
64. Which of the following is
the reason for hot engine?
ETS setting defective
Radiator fan not working
Radiator fins choked
Any of above
65. When engine is hunting, RPM
of engine?
Decreasing
Increasing
Increasing & decreasing
None of above
66. Which of the following is
not the safety item of locomotive?
OST
LWS
Governor
ACP
67. What instrument is used to
measure the liner bore?
Out side micrometer
Vernier calipers
Liner bore gauge
Height gauge
68. What are the possible cause
of Injector not responding?
Injector nozzle all hole
chocked
Phasing on up Position
Fuel cam lob damage
Any of above
69. High viscosity indicates?
Mixing of water in lube oil
Mixing of fuel in lube oil
Mixing of carbon contents
None of these
70. Firing order of WDP2
locomotive is ?
14768523
14263578
14352678
None of these
71. In FIP, meaning of "No Fuel
Position" is ?
Helix of plunger is to be
in front of spill port
Helix of plunger is to be
separated from spill port
Either or above
None of these
72. Fuel dilution means?
Mixing of lube oil in fuel
Mixing of water in fuel
Mixing of fuel in lube oil
Mixing of lube oil in water
73. According to loading
condition, which type of bogie WDM2 loco has?
Bi-mount
Trimount
Unimount
None of above
74. How much percentage of load
does centre pivot of WDM2 bogie carry?
40%
50%
60%
70%
75. Which type of suspension
WDM2 bogie has?
Single stage
Double stage
Multi stage
None of above
76. The main advantage of
single stage suspension is ?
To raise the centre of
gravity
To lower the centre of
gravity
To improve bogie speed
To reduce bogie maintenance
77. The device used to transmit
loco speed from wheels to the speedometer is called?
Techogenerator
Auxiliary Generator
Axle Generator
Main Generator
78. Load of Traction Motor is
transferred on bogie frame through?
Main journal
Suspension nose
Axle box
Helical coil spring
79. Height of side buffer
should be maintained between?
1105 mm to 1030 mm
1150 mm to 1088 mm
1150 mm to 1080 mm
1105 mm to 1088 mm
80. Buffer height can be
adjusted by ?
Adding shims to loading pads
& sides bearers
Adding shims to spring seat
Both 'a' & 'b'
None of above
81. The wheel dia variation of
WDM2 on same axle is permitted upto?
2 mm
3 mm
4 mm
0.5 mm
82. Cracks in the axles are
detected by ?
Magnaflux test
Ultrasonic test
Zyglo test
Chemical test
83. Bogie of WDP-1 loco has?
Two axles
Three axles
Four axles
Six axles
84. Expanded form of TBU is ?
Truck brake unit
Tread brake unit
Terminal brake unit
Thread brake unit
85. In WDP2 locomotive output of
Tr/Alt. at 400 rpm is ?
120 HP
160 HP
140 HP
200 HP
86. The Aux. Machine type 3101
AY and 3101 AZ are?
Inter changeable
Non interchangeable
fitted in WDM4
fitted in WDS6
87. Gear ratio of Eddy current
clutch gear unit is ?
1: 1.312
1 :1.321
1 :1.231
1 :1.213
88. The nominal air gap of
inner and outer drum of ECC is ?
0.8 to 1.02 mm
0.7 to 1.02 mm
0.8 to 1.01 mm
0.8 to 1.22 mm
89. Traction Motor - 165 is a ?
D.C. Series motor
A.C. Series motor
D.C. Shut motor
Induction Motor
90. For Bearing NU-330 EM/C4 ;
C4 stands for?
Radial clearance of class
Bearing with extra load
carrying capacity
Machined brass cage with
integral rivet
Angle ring
91. Pinion advance of TM-165 is
?
0.080" to 0.084"
0.085" to 0.090"
0.070" to 0.078"
0.060" to 0.068"
92. Type of oil used in GE
Governor is ?
T-77
RR-407
R-813
SP-150
93. Which coils are fitted in
pilot valve of GE Gov. ?
Coil + clutch coil
Stabilizing coil + clutch
coil
Speed coil + stabilizing
coil
Speed coil only
94. LCR is available on GE
Governor at location?
Seen from upper looking
glass
Seen from lower glass
Both are wrong
Not visible
95. LCR position on Idle
condition in WW Gov. is up 'o' clock?
11 Hours
12 Hours
17 Hours 30 Minutes
15 Hours
96. Full name of LCR is ?
Lever Control Rheostat
Load Connected Rheostat
Load Control Reactor
Load Control Rheostat
97. Schedule Maintenance of a
diesel locomotive is calculated on basis of?
Time
Distance travel by loco
Nature of the service of the
equipment
Any of the above three
98. The vent plug of battery
cells having holes (possibly) for?
Cooling of the battery
Removal of the fumes
Reducing weight of the plugs
No need of the holes
99. The higher temperature of
the battery caused life of battery to?
Increased
No effect on life of battery
Decreased
Excess temp. is must for good
life.
100. If a Techo Generator of WW
Governor have no output, the effect is ?
Loco will over shoot
RPM of the engine become
erratic
Loco will shut down.
Load Meter will come to
zero
101. The load meter became zero
but no effect on its running speed is seen, the most
possible cause is?
Tr Motor No.1
LAR's open
EFR
EP Contactor not lifting up
102. Shutting down of a diesel
engine with hot engine alarms indicates?
Engine temperature raised
above 90°C
Lube oil temperature raised
above 90°C
Water in expansion tank
became less
Any of the above a or b
103. Diesel Engine was shutting
down with hot engine alarm what may be the possible
defect?
Loco was shutting with low
lube oil
ETS operated
LWS float may be punctured
ETS-3 Stuck up
104. Use of high air pressure
for blowing for electrical components may effect?
Dangers to health
Good for cleaning
May cause loosening of
insulation bands
It will not effect to any
insulation
105. The function of slip ring
in Tr Alt works as a ?
Work as commutator
Work as a current
collector
Work for balancing of Tr Alt
rotor
None of the above
106. Colour code of Tr Motors
cables lead "A" is ?
Red
Yellow
Green
Black
107. The Generators used on WDM2
Diesel locomotive is ?
Shunt Generator
Separately Excited
Generator
Compound Generator
None of the above
108. If ESR·3 is not picking up
above 3rd notch, the indication will be ?
EP Contactor fluctuating.
Erratic RPM
Load Meter zero
NLV fluctuating
109. Loco was moving in one
direction only the fault was due to ?
GF not picking
EP Contactors not lifting up
Reverser not coming to
other direction
None of the defect
110. If Gov amphenol plug of a
Woodward type diesel engine is not pluged in Gov.
What event will took place?
Engine will not start.
Engine will start and load
meter also work
Engine RPM will not
increase on throttling
Engine will be started and
load meter also work
111. A Driver of multiple loco
wants to shut down both engine from working loco. He
will use?
Stop Button
OST
MUSD
Lube oil plunger
112. The difference between EM
and EP contactors is due to ?
Use of air
Due to operating voltage
Due to finger block used
Due to construction
113. If a Diesel Loco is giving
jerk on 1st notch which is most probable defect?
Defective VRP Cards
Defective 254 Card
Defective TR Cards
Defective 253 Card