The speed of a superfast train is______________?
(A) 60 kmph
(B) 75 kmph
(C) 100 kmph
(D) more than 100 kmph
Which of the following braking systems on the locomotives is costly ?
(A) Regenerative braking on electric locomotives
(B) Vacuum braking on diesel locomotives
(C) Vacuum braking on steam locomotives
(D) All braking systems are equally costly
The number of passenger coaches that can be attached to a diesel engine locomotive on broad gauge is usually restricted to_____________/
(A) 5
(B) 10
(C) 14
(D) 17
In case of locomotives the tractive power is provided by______________?
(A) single cylinder double acting steam engine
(B) double cylinder, single acting steam engine
(C) double cylinder, double acting steam engine
(D) single stage steam turbine
Which of the following braking systems is used on steam locomotives ?
(A) Hydraulic system
(B) Pneumatic system
(C) Vacuum system
(D) None of the above
The rate of acceleration on suburban orurban services is restricted by the consideration of______________?
(A) Engine power
(B) Track curves
(C) Passenger Discomfort
(D) Track size
The friction at the track is proportional to________________?
(A) 1/speed
(B) l/(speed)2
(C) speed
(D) none of the above
Speed-time curve of main line service differs from those of urban and suburban services on following account_______________?
(A) it has longer free running period
(B) it has longer coasting period
(C) accelerating and braking periods are comparatively smaller
(D) all of the above
The specific energy consumption of a train depends on which of the following ?
(A) Acceleration and retardation
(B) Gradient
(C) Distance covered
(D) All of the above