Electrical Machines Which of following DC generator will be in a position to build up without any residual magnetism in the field? Shunt. Series. Compound. Separately excited. Shunt. Series. Compound. Separately excited. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft of induction motor should be stiff. flexible. hollow. any of these. stiff. flexible. hollow. any of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous generator, if mechanical input is increased with constant excitation, the load angle will None of these either increase or decrease decrease increase None of these either increase or decrease decrease increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 200 V DC machine supplies 20 A at 200 V as a generator. The armature resistance is 0.2 Ω. If the machine is now operated as a motor at same terminal voltage and current but with the flux increased by 10%, the ratio of motor speed to generator speed is 0.95 1.06 0.87 0.96 0.95 1.06 0.87 0.96 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, if P be the number of poles and N be the rpm of the rotor, then frequency of magnetic reversals will be PN/2. PN/120. PN/3000. PN/60. PN/2. PN/120. PN/3000. PN/60. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC compound motors are generally Cummulative compound. Level Compound. None of these. Differentical compound. Cummulative compound. Level Compound. None of these. Differentical compound. ANSWER DOWNLOAD EXAMIANS APP
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