Category: Electric Traction

A. Three phase A.C. is converted into D.C.
B. Single phase A.C. is converted into D.C.
C. Single phase supply is converted into three phase system
D. None of the above

A. single acting condensing type
B. single acting non-condensing type
E. double acting condensing type
D. double acting non-condensing type

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

A. Sand on rails
B. Dew on rails
C. Oil on the rails
D. both B. and C.

A. 5
B. 10
C. 14
D. 17

A. Jolting and skidding
B. Hammer blow
C. Pitching
D. All of the above

A. Cascade control
B. Pole changing
C. Rheostat control
D. Combination of cascade and pole changing

A. Retardation and acceleration values
B. Gradient
C. Distance between stops
D. All of the above

A. Engine power
B. Track curves
C. Passenger Discomfort
D. Track size

A. uneven distribution of tractive effect
B. suitability for passanger as well as freight service
C. lot of skidding
D. low co-efficient of adhesion