DC Motors In a D.C. generator, the iron losses mainly take place in Armature rotor Commutator Armature conductors Yoke Armature rotor Commutator Armature conductors Yoke ANSWER DOWNLOAD EXAMIANS APP
DC Motors These days dc motors are widely used in Machine shops Air compressors Pumping sets Electric traction Machine shops Air compressors Pumping sets Electric traction ANSWER DOWNLOAD EXAMIANS APP
DC Motors The greatest percentage of power loss in a dc motor is due to Windage loss Copper loss Friction loss Core loss Windage loss Copper loss Friction loss Core loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors The back emf in a dc motor ______ Aids the applied voltage None of the listed here Opposes the applied voltage Aids the armature current Aids the applied voltage None of the listed here Opposes the applied voltage Aids the armature current ANSWER DOWNLOAD EXAMIANS APP
DC Motors During rheostat braking of dc series motor Motor is run as a generator Motor is reversed in direction None of the listed here Motor is run at reduced speed Motor is run as a generator Motor is reversed in direction None of the listed here Motor is run at reduced speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motors is most suitable for signalling devices and many kinds of timers ? C. shunt motor C. series motor Induction motor Reluctance motor C. shunt motor C. series motor Induction motor Reluctance motor ANSWER DOWNLOAD EXAMIANS APP
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