DC Generators The armature of a dc machine is made of ______ Cast steel Soft iron Wrought iron Silocon steel Cast steel Soft iron Wrought iron Silocon steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators With a D.C. generator which of the following regulation is preferred? 100% regulation 1% regulation Infinite regulation 50% regulation 100% regulation 1% regulation Infinite regulation 50% regulation ANSWER DOWNLOAD EXAMIANS APP
DC Generators Brushes of D.C. machines are made of Carbon Soft copper Hard copper All of above Carbon Soft copper Hard copper All of above ANSWER DOWNLOAD EXAMIANS APP
DC Generators The rapid wear of brushes takes place due to Excessive spring pressure Abrasion from dust Rough commutator bars All of these Excessive spring pressure Abrasion from dust Rough commutator bars All of these ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a practical dc generator, mechanical efficiency is More than electrical efficiency Equal to electrical efficiency None of the listed here Less than electrical efficiency More than electrical efficiency Equal to electrical efficiency None of the listed here Less than electrical efficiency ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator in order to reduce sparking at brushes, the self-induced e.m.f. in the coil is neutralized by all of the following except Compensating winding Dummy coils Shifting of axis of brushes Interpoles Compensating winding Dummy coils Shifting of axis of brushes Interpoles ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS