DC Motors Usually wide and sensitive speed control is desired in case of Colliery winders Centrifugal pumps Elevators Steel rolling mills Colliery winders Centrifugal pumps Elevators Steel rolling mills ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following losses are significantly reduced by laminating the core of a D.C. generator? Hysteresis losses Eddy current losses Copper losses Windage losses Hysteresis losses Eddy current losses Copper losses Windage losses ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors? Low cost Stability Wide speed range High starting torque Low cost Stability Wide speed range High starting torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. generator, the iron losses mainly take place in Armature rotor Armature conductors Yoke Commutator Armature rotor Armature conductors Yoke Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors The direction of rotation of a D.C. series motor can be changed by None of these Interchanging field terminals Either of (A) and (B) above Interchanging supply terminals None of these Interchanging field terminals Either of (A) and (B) above Interchanging supply terminals ANSWER DOWNLOAD EXAMIANS APP
DC Motors No load speed of which of the following motor will be highest? Series motor Cummulative compounded motor Differentially compounded motor Shunt motor Series motor Cummulative compounded motor Differentially compounded motor Shunt motor ANSWER DOWNLOAD EXAMIANS APP
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