DC Motors Armature reaction in dc motor is increased When the field current increases When the armature current decreases By interpoles When the armature current increases When the field current increases When the armature current decreases By interpoles When the armature current increases ANSWER DOWNLOAD EXAMIANS APP
DC Motors In dc machines fractional pitch winding is used To improve cooling To reduce the generated emf To reduce the sparking To increase the generated emf To improve cooling To reduce the generated emf To reduce the sparking To increase the generated emf ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Thermistor Thyristor Thyratron Transistor Thermistor Thyristor Thyratron Transistor ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc motor can be easily identified by Yoke Winding Size of conductor Commutator Yoke Winding Size of conductor Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors A direct on line starter is used for starting motors Upto 15 HP Upto 20 HP Upto 10 HP Upto 5 HP Upto 15 HP Upto 20 HP Upto 10 HP Upto 5 HP ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following loss in a D.C. generator varies significantly with the load current? Field copper loss None of these Armature copper loss Windage loss Field copper loss None of these Armature copper loss Windage loss ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS