DC Motors In a dc motor constant torque is produced due to End plates Rotor laminations Commutator Pole shoes End plates Rotor laminations Commutator Pole shoes ANSWER DOWNLOAD EXAMIANS APP
DC Motors What will happen if the back emf of a dc motor vanishes suddenly? The motor will run noisy The motor will continue to run The armature may burn The motor will stop The motor will run noisy The motor will continue to run The armature may burn The motor will stop ANSWER DOWNLOAD EXAMIANS APP
DC Motors Compensating winding in a dc machine is placed On armature On yoke in the interpolar gap None of the listed here On yoke in the pole faces On armature On yoke in the interpolar gap None of the listed here On yoke in the pole faces ANSWER DOWNLOAD EXAMIANS APP
DC Motors The shaft torque in a dc motor is less than total armature torque because of ______ in the motor. Iron and friction losses Cu losses Field losses None of the listed here Iron and friction losses Cu losses Field losses None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a _____ motor is practically constant. Series Shunt Cumulatively compounded Differentially compounded Series Shunt Cumulatively compounded Differentially compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors The rheostatic speed control method is very Suitable for getting speeds above the normal Economical Efficient Unsuitable for rapidly changing loads Suitable for getting speeds above the normal Economical Efficient Unsuitable for rapidly changing loads ANSWER DOWNLOAD EXAMIANS APP
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