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 50 100 10 150 50 100 10 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The physical size of 100 kW, 2000 rpm generator is _____ that of 10 kW, 200 rpm generator. More than None of the listed here About the same as Less than More than None of the listed here About the same as Less than ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following could be lamina proximately the thickness of laminations of a D.C. machine? 5 m 0.5 m 0.005 mm 0.05 mm 5 m 0.5 m 0.005 mm 0.05 mm ANSWER DOWNLOAD EXAMIANS APP
DC Generators The ideal commutation in a coil is not possible because each coil has Resistance Capacitance Inductance None of the listed here Resistance Capacitance Inductance None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The number of parallel paths in a simplex lap winding is equal to Number of pairs of poles 2 None of the listed here Number of poles Number of pairs of poles 2 None of the listed here Number of poles ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following will not prevent a self excited shunt generator from building upto its full voltage? Wrong direction of rotation Speed too high No residual magnetism Open field Wrong direction of rotation Speed too high No residual magnetism Open field ANSWER DOWNLOAD EXAMIANS APP
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