Electrical Machines In which transformer, the tertiary winding is used? Delta - star Star - delta Delta - delta Star - star Delta - star Star - delta Delta - delta Star - star ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When applied rated voltage per phase is reduce to one half, the starting torque of three phase squirrel cage induction motor becomes 4 time the initial value 1/2 of the initial value twice the initial value 1/4 of the intial value 4 time the initial value 1/2 of the initial value twice the initial value 1/4 of the intial value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A small air gap in poly phase induction motor helps to increase starting torque. reduce chance of cogging. reduce chance of crawling. reduce magnetizing current. increase starting torque. reduce chance of cogging. reduce chance of crawling. reduce magnetizing current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of these types of motor is self starting? Single phase induction motor. None of these. Poly-phase synchronous machine. Poly-phase induction motor. Single phase induction motor. None of these. Poly-phase synchronous machine. Poly-phase induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 8-pole, DC generator has a simplex wave-wound armature containing 32 coils of 6 turns each. Its flux per pole is 0.06 Wb. The machine is running at 250 rpm. The induced armature voltage is 192 V 96 V 384 V 768 V 192 V 96 V 384 V 768 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC compound motors are generally None of these. Differentical compound. Cummulative compound. Level Compound. None of these. Differentical compound. Cummulative compound. Level Compound. ANSWER DOWNLOAD EXAMIANS APP
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