A. neutral wire
B. rails
C. cables
D. common earthing
0
In case of _________________ free running and coasting periods are generally long ?
0
have maximum unbalanced forces_______________?
A. main-line service
B. urban service
C. sub-urban service
D. all of the above
0
When a bogie negotiates a curve, reduction in adhesion occurs resulting in sliding. Thus sliding is acute when_______________?
A. Diesel shunters
B. Steam locomotives
C. Electric locomotives
D. Diesel locomotives
0
An ideal traction system should have_______________?
A. wheel base of axles is more
B. degree of curvature is more
C. both A. and B.
D. none of the above
0
Energy consumption in propelling the train is required for which of the following?
A. easy speed control
B. high starting tractive effort
C. equipment capable of with standing large temporary loads
D. all of the above
0
Overhead lines for power supply to tramcars are at a minimum height of______________?
A. Work against the resistance to motion
B. Work against gravity while moving up the gradient
C. Acceleration
D. All of the above
0
Specific energy consumption is least in ________________ service?
A. 3 m
B. 6 m
C. 10 m
D. 15 m
0
Specific energy consumption is affected by which of the following factors ?
A. main line
B. urban
C. suburban
0
Locomotive having monomotor bogies________________?
A. Retardation and acceleration values
B. Gradient
C. Distance between stops
D. All of the above
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