DC Motors The power mentioned on the name plate of an electric motor indicates The power drawn in kVA The gross power The output power available at the shaft The power drawn in kW The power drawn in kVA The gross power The output power available at the shaft The power drawn in kW ANSWER DOWNLOAD EXAMIANS APP
DC Motors In case the conditions for maximum power for a D.C. motor are established, the efficiency of the motor will be Less than 50% Anywhere between 75% and 90% Around 90% 1 Less than 50% Anywhere between 75% and 90% Around 90% 1 ANSWER DOWNLOAD EXAMIANS APP
DC Motors In variable speed motor A weaker commutating field is needed at low speed than at high speed A stronger commutating field is needed at low speed than at high speed None of these Same commutating field is needed at low speed than at high speed A weaker commutating field is needed at low speed than at high speed A stronger commutating field is needed at low speed than at high speed None of these Same commutating field is needed at low speed than at high speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors The maximum end play of a motor is about 6 mm 2 mm 0.4 mm 10 mm 6 mm 2 mm 0.4 mm 10 mm ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be Rated full-load current Almost negligible More than full-load current Less than full-load current Rated full-load current Almost negligible More than full-load current Less than full-load current ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a dc motor can be controlled by changing Is flux All of the listed here Aplied voltage Armature circuit resistance Is flux All of the listed here Aplied voltage Armature circuit resistance ANSWER DOWNLOAD EXAMIANS APP
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