DC Motors The shaft torque in a dc motor is less than total armature torque because of ______ in the motor. Iron and friction losses None of the listed here Cu losses Field losses Iron and friction losses None of the listed here Cu losses Field losses 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. Half Twice None of the listed here One-third Half Twice None of the listed here One-third ANSWER DOWNLOAD EXAMIANS APP
DC Motors Differentially compound D.C. motors can find applications requiring Frequent on-off cycles Variable speed Low starting torque High starting torque Frequent on-off cycles Variable speed Low starting torque High starting torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. series motor, if the armature current is reduced by 50%, the torque of the motor will be equal to 50% of the previous value 10% of the previous value 100% of the previous value 25% of the previous value 50% of the previous value 10% of the previous value 100% of the previous value 25% of the previous value ANSWER DOWNLOAD EXAMIANS APP
DC Motors The variable resistor shunting the field of a dc series motor is called a Armature divertor Potential divider Voltage regulator Field divertor Armature divertor Potential divider Voltage regulator Field divertor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Flywheel is used with D.C. compound motor to reduce the peak demand by the motor, compound motor will have to be Level compounded Cumulatively compounded Differentially compounded Under compounded Level compounded Cumulatively compounded Differentially compounded Under compounded ANSWER DOWNLOAD EXAMIANS APP
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