DC Motors The mechanical power developed in a dc motor is maximum when back emf is equal to _____ the applied voltage. One-third Twice None of the listed here Half One-third Twice None of the listed here Half ANSWER DOWNLOAD EXAMIANS APP
DC Motors The most suitable motor for elevators is the ____ motor. Cummulative compounded Series Differentially compuonded Shunt Cummulative compounded Series Differentially compuonded Shunt ANSWER DOWNLOAD EXAMIANS APP
DC Motors When two dc series motor are commected in parallel, the resultant speed is Zero More than the normal speed Normal speed Loss than the normal speed Zero More than the normal speed Normal speed Loss than the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors By flux control method of speed control of a dc shunt motor, we can obtain speeds. Above the normal speed only Below the normal speed only None of the listed here Above as well as below the normal speed Above the normal speed only Below the normal speed only None of the listed here Above as well as below the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors The plugging gives the Zero torque braking Highest torque braking None of the listed here Smallest torque braking Zero torque braking Highest torque braking None of the listed here Smallest torque braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors In case the conditions for maximum power for a D.C. motor are established, the efficiency of the motor will be Less than 50% Anywhere between 75% and 90% 1 Around 90% Less than 50% Anywhere between 75% and 90% 1 Around 90% ANSWER DOWNLOAD EXAMIANS APP
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