DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Remains same Become zero Increase Decrease Remains same Become zero Increase Decrease ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed in a dc motor is maximum when back emf is equal to _____ the applied voltage. None of the listed here Twice One-third Half None of the listed here Twice One-third Half ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc compound machine, Shunt field winding plays dominant role Either can play dominant role Both play equally dominant role Series field winding plays dominant role Shunt field winding plays dominant role Either can play dominant role Both play equally dominant role Series field winding plays dominant role ANSWER DOWNLOAD EXAMIANS APP
DC Motors A series motor will over speed when Load is removed The load is increase The armature circuit is opened. The field is opened Load is removed The load is increase The armature circuit is opened. The field is opened ANSWER DOWNLOAD EXAMIANS APP
DC Motors The maximum end play of a motor is about 2 mm 6 mm 10 mm 0.4 mm 2 mm 6 mm 10 mm 0.4 mm ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc motor is still used in industrial applications because it None of the listed here Is simple in construction Provides fine speed control Is cheap None of the listed here Is simple in construction Provides fine speed control Is cheap ANSWER DOWNLOAD EXAMIANS APP
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