Electric Traction
Speed-time curve of main line service differs from those of urban and suburban services on following account

It has longer coasting period
All of the listed here
Accelerating and braking periods are comparatively smaller
It has longer free running period

ANSWER DOWNLOAD EXAMIANS APP

Electric Traction
Coefficient of adhesion is

High in case of D.C. traction than in the case of AC. traction
All of the listed here
Low in case of D.C. traction than in the case of AC. traction
Equal in both AC. and D.C. traction

ANSWER DOWNLOAD EXAMIANS APP