Electric Traction Specific energy consumption is least in _______ service. Suburban Main line None of the listed here Urban Suburban Main line None of the listed here Urban ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Due to which of the following coefficient of adhesion improves? Dust on the rails Sand on the rails Rust on the rails All of the listed here Dust on the rails Sand on the rails Rust on the rails All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The wheels of a train, engine as well as bogies, are slightly tapered to Reduce friction Facilitate in taking turns Increase friction Facilitate braking Reduce friction Facilitate in taking turns Increase friction Facilitate braking ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following happens in Kando system? Single phase supply is converted into three phase system Single phase A.C. is converted into D.C. Three phase A.C. is converted into D.C. None of the listed here Single phase supply is converted into three phase system Single phase A.C. is converted into D.C. Three phase A.C. is converted into D.C. None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electric Traction For three-phase induction motors which of the following is the least efficient method of speed control? Rheostat control Cascade control Combination of cascade and pole changing Pole changing Rheostat control Cascade control Combination of cascade and pole changing Pole changing ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following braking systems on the locomotives is costly? Regenerative braking on electric locomotives All braking systems are equally costly Vacuum braking on diesel locomotives Vacuum braking on steam locomotives Regenerative braking on electric locomotives All braking systems are equally costly Vacuum braking on diesel locomotives Vacuum braking on steam locomotives ANSWER DOWNLOAD EXAMIANS APP
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