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the answer which you think is correct, and in
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Answer". All the best!
Q. I. Flasher light modification in
diesel loco is done for ?
Better illumination
of flasher light
Modified flasher
light
Safety in case of
train parting
None of the above
Q. II. 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 and flasher light is on &
buzzer blows
Loco does not come to idle, flasher light is on &
buzzer blows
Q. III. How many braking positions of A-9
valve?
05 braking position
04 braking position
03 braking position
01
braking position
Q. IV.
Permissible blockage of vacuum train pipe in cm is ?
0 cm
Up to 8 cm
Up to 12 cm
Up to 20
cm
Q.
V. Duplex check valve operates when MR pressure
reaches pressure (kg/cm2) ?
5 kg/cm2
6 kg/cm2
Always open
10 kg/cm2
Q.
VI. Twin pipe system in locos has what advantage ?
Better acceleration
Loco to bring to idle
Achieving less
braking distance
Maintaining MR
Q.
VII. When H-5 or HB-5 valve operates which air goes
to PCS ?
MR Pressure
HS-4 Pressure
FP Pressure
BP
Pressure
Q.
VIII. When big diaphragm of VA-1B control
valve gets punctured, what action will happen ?
Vacuum will drop to
zero
Vacuum will not drop
down
Vacuum will drop
partially
None
Q. IX.
R-6 relay valve is fitted in loco for ?
Quick MR charging
Quick working of AFM
valve
Quick vacuum building
By-passing AFMV
Q. X. The standard colour of humidity indicator in
air dryer is ?
Orange
Purple
Blue
White
Q.
XI. Purge value in air dryer is for ?
Maintaining supply
of MR pressure
Removing moisture
Creating vacuum in
air dryer
Charging
air dryer
Q.
XII. When 7.5 mm dia hole palm end is fitted, the
change vin 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
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Complete Question Bank for Mechanical Department in 4
Parts
