Electric Traction The wheels of a train, engine as well as bogies, are slightly tapered to Facilitate in taking turns Facilitate braking Increase friction Reduce friction Facilitate in taking turns Facilitate braking Increase friction Reduce friction ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The efficiency of diesel locomotives is nearly 20 to 25 percent 60 to 70 percent 30 to 40 percent 45 to 55 percent 20 to 25 percent 60 to 70 percent 30 to 40 percent 45 to 55 percent ANSWER DOWNLOAD EXAMIANS APP
Electric Traction _________ frequency is not common in low frequency traction system None of the listed here 40 Hz 25 Hz 16 Hz None of the listed here 40 Hz 25 Hz 16 Hz ANSWER DOWNLOAD EXAMIANS APP
Electric Traction For three-phase induction motors which of the following is the least efficient method of speed control? Cascade control Pole changing Rheostat control Combination of cascade and pole changing Cascade control Pole changing Rheostat control Combination of cascade and pole changing ANSWER DOWNLOAD EXAMIANS APP
Electric Traction If the coefficient of adhesion on dry rails is 0.26, which of the following could be the value for wet rails? 0.35 0.46 0.26 0.16 0.35 0.46 0.26 0.16 ANSWER DOWNLOAD EXAMIANS APP
Electric Traction In case of steam engines the steam pressure is 25 to 35 kgf/cm² 5 to 8 kgf/cm² 1 to 4 kgf/cm² 10 to 15 kgf/cm² 25 to 35 kgf/cm² 5 to 8 kgf/cm² 1 to 4 kgf/cm² 10 to 15 kgf/cm² ANSWER DOWNLOAD EXAMIANS APP
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