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 ______ 50 10 100 150 50 10 100 150 ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a lap winding, the number of the brushes required is equal to Commutator pitch None of the listed here Number of pairs of poles Number of poles Commutator pitch None of the listed here Number of pairs of poles Number of poles ANSWER DOWNLOAD EXAMIANS APP
DC Generators The copper loss is constant for Shunt generator only None of the listed here Series generator only Both shunt and compound generator Shunt generator only None of the listed here Series generator only Both shunt and compound generator ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a practical dc generator, mechanical efficiency is Less than electrical efficiency More than electrical efficiency None of the listed here Equal to electrical efficiency Less than electrical efficiency More than electrical efficiency None of the listed here Equal to electrical efficiency ANSWER DOWNLOAD EXAMIANS APP
DC Generators In case of dc machines, mechanical losses are primary function of Voltage Current None of the listed here Speed Voltage Current None of the listed here Speed ANSWER DOWNLOAD EXAMIANS APP
DC Generators Lap winding is composed of That even number which is exact multiple of poles Any odd number of conductors That even number which is exact multiple of poles + 2 Any even number of conductors That even number which is exact multiple of poles Any odd number of conductors That even number which is exact multiple of poles + 2 Any even number of conductors ANSWER DOWNLOAD EXAMIANS APP
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