DC Motors In the dc motor the iron losses occur in Field Brushes Commutator Armature Field Brushes Commutator Armature 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. One-third Twice Half None of the listed here One-third Twice Half None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The main disadvantage of the Ward-Leonard control method is High initial cost High maintenance cost Low efficiency at high loads All of these High initial cost High maintenance cost Low efficiency at high loads All of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. generator, the iron losses mainly take place in Armature rotor Yoke Armature conductors Commutator Armature rotor Yoke Armature conductors Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors A compensating winding is an auxiliary winding embedded in slots in None of the listed here The pole faces of main poles Partly in pole faces, partly in armature The armature None of the listed here The pole faces of main poles Partly in pole faces, partly in armature The armature ANSWER DOWNLOAD EXAMIANS APP
DC Motors For a D.C. shunt motor if the excitation is changed Torque, power and speed, all will change Torque will change but power will remain constant Torque and power both will change Torque will remain constant Torque, power and speed, all will change Torque will change but power will remain constant Torque and power both will change Torque will remain constant ANSWER DOWNLOAD EXAMIANS APP
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