Electrical Machines If the excitation of the synchronous generator fails, it acts as a/an synchronous motor. induction motor. synchronous generator. induction generator. synchronous motor. induction motor. synchronous generator. induction generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two DC series motors are connected in series and are driving the same mechanical load. If the motors are now connected in parallel the speed will become one fourth. half. double. 4 times. one fourth. half. double. 4 times. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For high current and low voltage rating which winding is employed to DC machine? Wave winding. Lap winding. Both wave and lap winding. No wave and lap winding. Wave winding. Lap winding. Both wave and lap winding. No wave and lap winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following are variable losses? shunt field copper loss eddy current loss armature copper loss hysteresis loss shunt field copper loss eddy current loss armature copper loss hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V dc machine has an armature resistance of 1Ω.If the full-load current is 20 A, the differenc in the induced voltages when the machine is running as a motor and as a generator is 40 V 20 V 50 V zero 40 V 20 V 50 V zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase slip ring induction motor is wound for 4 poles on stator and 6 poles on the rotor. When 3-phase balanced voltage source at 50 Hz is applied, it will run at 1000 rpm 1500 rpm zero speed 750rpm 1000 rpm 1500 rpm zero speed 750rpm ANSWER DOWNLOAD EXAMIANS APP
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