DC Generators The armature of a dc machine having 10 poles is rotating at a speed of 10 revolution per second. The number of hysteresis loops formed per second is ______ 150 50 10 100 150 50 10 100 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The coupling field between electrical and mechanical systems of a dc machine is ______ Magnetic field Both electrical and magnetic fields Electric field None of the listed here Magnetic field Both electrical and magnetic fields Electric field None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a lap winding, the number of the brushes required is equal to Number of pairs of poles Number of poles Commutator pitch None of the listed here Number of pairs of poles Number of poles Commutator pitch None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The no load voltage of a generator is 240 V and rated load voltage is 220 V. The voltage regulation of the generator is 11.3% 2.8% 4.5% 9.1% 11.3% 2.8% 4.5% 9.1% ANSWER DOWNLOAD EXAMIANS APP
DC Generators Dc machines which are subjected to abrupt changes of load are provided with Compensating windings Equalisers Copper brushes Interpole windings Compensating windings Equalisers Copper brushes Interpole windings ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature copper loss in a dc generator is a Variable loss None of the listed here Constant loss Stray loss Variable loss None of the listed here Constant loss Stray loss ANSWER DOWNLOAD EXAMIANS APP
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