DC Motors Where D.C. motor of H.P. 12 or more requires frequent starting, stopping, reversing and speed control All above can be used Drum type controller is used Four point starter is used Three point starter is used All above can be used Drum type controller is used Four point starter is used Three point starter is used ANSWER DOWNLOAD EXAMIANS APP
DC Motors The value of back emf in dc motor is maximum at Full load No load None of the listed here Half full load Full load No load None of the listed here Half full load ANSWER DOWNLOAD EXAMIANS APP
DC Motors The shaft torque in a dc motor is less than total armature torque because of ______ in the motor. Cu losses None of the listed here Field losses Iron and friction losses Cu losses None of the listed here Field losses Iron and friction losses ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a dc motor can be controlled by changing All of the listed here Is flux Armature circuit resistance Aplied voltage All of the listed here Is flux Armature circuit resistance Aplied voltage ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. generator, the iron losses mainly take place in Armature conductors Commutator Yoke Armature rotor Armature conductors Commutator Yoke Armature rotor ANSWER DOWNLOAD EXAMIANS APP
DC Motors For the same H.P. rating and full load speed, following motor has poor starting torque Cumulatively compounded Differentially compounded Series Shunt Cumulatively compounded Differentially compounded Series Shunt ANSWER DOWNLOAD EXAMIANS APP
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