Electric Traction

A. wheel base of axles is more
B. degree of curvature is more
C. both A. and B.
D. none of the above

A. Diesel shunters
B. Steam locomotives
C. Electric locomotives
D. Diesel locomotives

A. main-line service
B. urban service
C. sub-urban service
D. all of the above

A. neutral wire
B. rails
C. cables
D. common earthing

A. Less current drain on the heavy load torque
B. Current surges after temporary switching off supply
C. Self relieving property
D. Commutating property at heavy load

A. resistance offered by air
B. friction at the track
C. friction at various parts of the rolling stock
D. all of the above

A. steel mills
B. power stations
C. narrow gauge traction
D. factories for material transportation

A. Vacuum pump
B. Ejector
C. Any of the above
D. None of the above

A. Plugging braking
B. Rheostatic braking
C. Regenerative braking
D. None of the above

A. 12 V
B. 24 V
C. 220 V
D. 600 to 750 V