Electric Traction For 25 kV single phase system power supply frequency is 100 Hz 50 Hz 60 Hz 25 Hz 100 Hz 50 Hz 60 Hz 25 Hz 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 Pole changing Combination of cascade and pole changing Cascade control Rheostat control Pole changing Combination of cascade and pole changing Cascade control ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The coasting retardation is around 2.6 km phps 3.6 km phps 0.16 km phps 1.6 km phps 2.6 km phps 3.6 km phps 0.16 km phps 1.6 km phps ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Quadrilateral speed-time curve pertains to which of the following services? Suburban service Urban and suburban service Urban service Main line service Suburban service Urban and suburban service Urban service Main line service ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The value of coefficient of adhesion will be high when rails are Wet Cleaned with sand Greased Sprayed with oil Wet Cleaned with sand Greased Sprayed with oil ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Methods can bring the locomotive to dead stop. Regenerative braking Plugging braking None of the listed here Rheostat braking Regenerative braking Plugging braking None of the listed here Rheostat braking ANSWER DOWNLOAD EXAMIANS APP
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