DC Motors The mechanical power developed by a shunt motor will be maximum when the ratio of back emf to applied voltage is 0.5 1.0 4.0 2.0 0.5 1.0 4.0 2.0 ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor constant torque is produced due to Rotor laminations Pole shoes Commutator End plates Rotor laminations Pole shoes Commutator End plates ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. generator, the iron losses mainly take place in Armature rotor Commutator Armature conductors Yoke Armature rotor Commutator Armature conductors Yoke ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Thermistor Thyristor Transistor Thyratron Thermistor Thyristor Transistor Thyratron ANSWER DOWNLOAD EXAMIANS APP
DC Motors Armature reaction in dc motor is increased When the armature current decreases When the armature current increases When the field current increases By interpoles When the armature current decreases When the armature current increases When the field current increases By interpoles ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. series motors are used Where load is constant Where load changes frequently None of these Where constant operating speed is needed Where load is constant Where load changes frequently None of these Where constant operating speed is needed ANSWER DOWNLOAD EXAMIANS APP
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