Electrical Machines The speed of rotating magnetic field of 8 pole 50 Hz induction motor is 1000 rpm 1500 rpm 3000 rpm 750 rpm 1000 rpm 1500 rpm 3000 rpm 750 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single phase, 2 KV alternator has an armature resistance of 0.8 ohms and 4.94 ohms respectively. The voltage regulation of the alternator at 100 a load 0.8 loading power factor is 14%. 7%. 8.9%. 0%. 14%. 7%. 8.9%. 0%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Brushes are always placed on--------------- , in order to achieve sparkles commutation? MNA None of these either GNA or MNA GNA MNA None of these either GNA or MNA GNA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft of induction motor may be unbalanced due to overheating of winding. poor lubrication. uneven air gap. overload. overheating of winding. poor lubrication. uneven air gap. overload. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature of DC machine is made of silicon steel. non-ferrous material. insulating material. conducting material. silicon steel. non-ferrous material. insulating material. conducting material. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the source voltage of a DC motor is increased, which of the following will decrease? Operating speed. Full load current. Starting torque. Starting torque, operating speed, full load current. Operating speed. Full load current. Starting torque. Starting torque, operating speed, full load current. ANSWER DOWNLOAD EXAMIANS APP
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