DC Motors In D.C. motor which of the following can sustain the maximum temperature rise? Commutator Field winding Armature winding Slip rings Commutator Field winding Armature winding Slip rings ANSWER DOWNLOAD EXAMIANS APP
DC Motors A three point starter is considered suitable for Shunt as well as compound motors Shunt, compound and series motors All D.C. motors Shunt motors Shunt as well as compound motors Shunt, compound and series motors All D.C. motors Shunt motors ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. generator, the iron losses mainly take place in Commutator Yoke Armature rotor Armature conductors Commutator Yoke Armature rotor Armature conductors ANSWER DOWNLOAD EXAMIANS APP
DC Motors In dc machines fractional pitch winding is used To increase the generated emf To reduce the generated emf To reduce the sparking To improve cooling To increase the generated emf To reduce the generated emf To reduce the sparking To improve cooling ANSWER DOWNLOAD EXAMIANS APP
DC Motors The main disadvantage of the Ward-Leonard control method is All of these 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 ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Thermistor Thyratron Transistor Thyristor Thermistor Thyratron Transistor Thyristor ANSWER DOWNLOAD EXAMIANS APP
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