A. 0.2 to 0.5 km phps
B. 1.6 to 4.0 km phps
C. 5 to 10 km phps
D. 15 to 25 km phps
Related Mcqs:
- 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 - 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 - In main line service as compared to urban and suburban service______________?
A. distance between the stops is more
B. maximum speed reached is high
C. acceleration and retardation rates are low
D. all of the above - The voltage used for suburban trains in D.C. system is usually_______________?
A. 12 V
B. 24 V
C. 220 V
D. 600 to 750 V - _______________watt-hours per tonne km is usually the specific energy consumption for suburban services?
A. 15—20
B. 50—75
C. 120—150
D. 160—200 - For which of the following applications motor has to start with high acceleration ?
A. Oil expeller
B. Floor mill
C. Lifts and hoists
D. Centrifugal pump - Specific energy consumption is least in ________________ service?
A. main line
B. urban
C. suburban - The wheels of a train, engine as well as bogies, are slightly tapered to_____________?
A. reduce friction
B. increase friction
C. facilitate braking
D. facilitate in taking turns - The speed of a superfast train is______________?
A. 60 kmph
B. 75 kmph
C. 100 kmph
D. more than 100 kmph - For three-phase induction motors which of the following is the least efficient method of speed control ?
A. Cascade control
B. Pole changing
C. Rheostat control
D. Combination of cascade and pole changing
