Electric Traction Which of the following braking systems is used on steam locomotives? Hydraulic system Vacuum system None of the listed here Pneumatic system Hydraulic system Vacuum system None of the listed here Pneumatic system ANSWER DOWNLOAD EXAMIANS APP
Electric Traction For three-phase induction motors which of the following is the least efficient method of speed control? Combination of cascade and pole changing Cascade control Pole changing Rheostat control Combination of cascade and pole changing Cascade control Pole changing Rheostat control ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The voltage used for suburban trains in D.C. system is usually 600 to 750 V 220 V 12 V 24 V 600 to 750 V 220 V 12 V 24 V ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Long distance railways use which of the following? 25 kV three phase A.C. 200 V D.C. 25 kV two phase A.C. 25 kV single phase A.C. 25 kV three phase A.C. 200 V D.C. 25 kV two phase A.C. 25 kV single phase A.C. ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Quadrilateral speed-time curve pertains to which of the following services? Urban service Main line service Urban and suburban service Suburban service Urban service Main line service Urban and suburban service Suburban service ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The specific energy consumption of a train depends on which of the following? Distance covered Acceleration and retardation Gradient All of the listed here Distance covered Acceleration and retardation Gradient All of the listed here ANSWER DOWNLOAD EXAMIANS APP
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