DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Slip rings Field winding Armature winding Commutator Slip rings Field winding Armature winding Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is best suited for driving Machine tools Cranes and hoists None of the listed here Shear and punches Machine tools Cranes and hoists None of the listed here Shear and punches ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc compound machine, Both play equally dominant role Either can play dominant role Shunt field winding plays dominant role Series field winding plays dominant role Both play equally dominant role Either can play dominant role Shunt field winding plays dominant role Series field winding plays dominant role ANSWER DOWNLOAD EXAMIANS APP
DC Motors The direction of rotation of a D.C. series motor can be changed by Interchanging supply terminals Either of (A) and (B) above None of these Interchanging field terminals Interchanging supply terminals Either of (A) and (B) above None of these Interchanging field terminals ANSWER DOWNLOAD EXAMIANS APP
DC Motors At the instant of starting when a D.C. motor is put on supply, it behaves like A highly resistive circuit A low resistance circuit A capacitive circuit None of these A highly resistive circuit A low resistance circuit A capacitive circuit None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Increase Remains same Decrease Become zero Increase Remains same Decrease Become zero ANSWER DOWNLOAD EXAMIANS APP
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