DC Motors Which of the following methods gives the greatest braking torque? Plugging None of the listed here Regenerative braking Rheostatic braking Plugging None of the listed here Regenerative braking Rheostatic braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Increase Become zero Decrease Remains same Increase Become zero Decrease Remains same ANSWER DOWNLOAD EXAMIANS APP
DC Motors The main disadvantage of the Ward-Leonard control method is All of these Low efficiency at high loads High initial cost High maintenance cost All of these Low efficiency at high loads High initial cost High maintenance cost ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor if the back emf is absent Motor will run at very high speed Motor will not run at all Motor will run at very slow speed Motor will burn Motor will run at very high speed Motor will not run at all Motor will run at very slow speed Motor will burn ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor has the poorest speed control? Shunt motor Differentially compounded motor Cummulative compounded motor Series motor Shunt motor Differentially compounded motor Cummulative compounded motor Series motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. motor is to be selected for conveyors, which rriotor would be preferred ? Series motor Shunt motor Differentially compound motor Cumulative compound motor Series motor Shunt motor Differentially compound motor Cumulative compound motor ANSWER DOWNLOAD EXAMIANS APP
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