Electrical Machines If terminal voltage of one 1000 rpm shunt motor is reduced to half the speed of the motor will be 2000 rpm 500 rpm 1000 rpm 250 rpm 2000 rpm 500 rpm 1000 rpm 250 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC generator will not build up voltage due to wrong direction of rotation. if it has lost residual magnetism. any one of above. if field resistance is more than critical resistance. due to wrong direction of rotation. if it has lost residual magnetism. any one of above. if field resistance is more than critical resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machine will have maximum efficiency? Induction motor. Electrical power transformer. Electrical power generator. DC motor. Induction motor. Electrical power transformer. Electrical power generator. DC motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC compound motor has tertiary winding. both shunt and series field winding. only shunt field winding. only series field winding. tertiary winding. both shunt and series field winding. only shunt field winding. only series field winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For 250 volt DC Shunt Motor the armature and field resistance are 0.5 ohm and 250 ohm respectively. What will be the back e.m.f. produced when it takes a load current of 21A. 240 V. 220 V. 150 V. 280 V. 240 V. 220 V. 150 V. 280 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reluctance and hysteresis motors are the types of which electrical motor? DC motor. 1 - Φ synchronous motor. Stepper motor. 3 - Φ induction motor. DC motor. 1 - Φ synchronous motor. Stepper motor. 3 - Φ induction motor. ANSWER DOWNLOAD EXAMIANS APP
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