DC Generators In a D.C. generator the critical resistance refers to the resistance of Brushes Armature Load Field Brushes Armature Load Field ANSWER DOWNLOAD EXAMIANS APP
DC Generators The yoke of a dc machine carries ______ pole flux. Three times Two times the None of the listed here One-half of Three times Two times the None of the listed here One-half of ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field structure of a dc machine uses ______ None of the listed here Both salient and non salient pole arrangements None salient pole arrangements Salient pole arrangements None of the listed here Both salient and non salient pole arrangements None salient pole arrangements Salient pole arrangements ANSWER DOWNLOAD EXAMIANS APP
DC Generators The essential condition for parallel operation of two D.C. generators is that they have The same operation r.p.m. Same percentage regulation Same kW rating The same drooping voltage characteristics The same operation r.p.m. Same percentage regulation Same kW rating The same drooping voltage characteristics ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature winding of a dc machine is place on the rotor to ______ Facilitate commutation Reduce losses Reduce armature reaction Save iron Facilitate commutation Reduce losses Reduce armature reaction Save iron ANSWER DOWNLOAD EXAMIANS APP
DC Generators Brushes of D.C. machines are made of Soft copper Carbon Hard copper All of above Soft copper Carbon Hard copper All of above ANSWER DOWNLOAD EXAMIANS APP
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