DC Motors What will happen if the back emf of a dc motor vanishes suddenly? The motor will stop The armature may burn The motor will continue to run The motor will run noisy The motor will stop The armature may burn The motor will continue to run The motor will run noisy ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Field winding Commutator Armature winding Slip rings Field winding Commutator Armature winding Slip rings ANSWER DOWNLOAD EXAMIANS APP
DC Motors The power mentioned on the name plate of an electric motor indicates 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 The power drawn in kVA ANSWER DOWNLOAD EXAMIANS APP
DC Motors For constant torque drive which speed control method is preferred? Armature voltage control Shunt armature control Field control Mechanical loading system Armature voltage control Shunt armature control Field control Mechanical loading system ANSWER DOWNLOAD EXAMIANS APP
DC Motors Three point starter can be used for Shunt motor only Series motor only Compound motor only Both shunt and compound motor Shunt motor only Series motor only Compound motor only Both shunt and compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors In which of the following tests only one motor is required? Swinburne's test Brake test Field's test Hopkinson's test Swinburne's test Brake test Field's test Hopkinson's test ANSWER DOWNLOAD EXAMIANS APP
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