Electrical Machines To get the speed of DC motor more than normal without wastage of electrical energy _____________ is used. Ward Leonard control. any of above method. none of above. rheostatic control. Ward Leonard control. any of above method. none of above. rheostatic control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The damper windings also called the squirrel cage windings or damper grids are provided on the stator for improving power factor. both (A) and (B). consists of short-circuited copper bars embedded in the field pole faces. are provided in a synchronous motor to make it self starting. are provided on the stator for improving power factor. both (A) and (B). consists of short-circuited copper bars embedded in the field pole faces. are provided in a synchronous motor to make it self starting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V DC machine has an armature resistance 1Ω. If the full load current is 20 A, the difference of induced voltage and generator is 20 V. 0 V. 40 V. 60 V. 20 V. 0 V. 40 V. 60 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is not suitable for frequent starting and stopping? Capacitor split phase motor All of these Resistance split phase motor Capacitor run motor Capacitor split phase motor All of these Resistance split phase motor Capacitor run motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In electric locomotive which of the following motor are used ? DC series motor. Synchronous motor. Shunt motor. Separately compound motor. DC series motor. Synchronous motor. Shunt motor. Separately compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer the magnetic coupling between the primary and secondary winding can be increased by using transformer oil of better quality. using the magnetic core of low reluctance. using soft material for winding. increasing the number of turns. using transformer oil of better quality. using the magnetic core of low reluctance. using soft material for winding. increasing the number of turns. ANSWER DOWNLOAD EXAMIANS APP
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