DC Generators The bearings used to support the rotor shafts are generally Bush bearings Needle bearings Ball bearings Magnetic bearings Bush bearings Needle bearings Ball bearings Magnetic bearings ANSWER DOWNLOAD EXAMIANS APP
DC Generators If the value of shunt field resistance of a shunt generator is greater than the critical resistance, the generator will Excite to one half of full voltage Fail to excite None of the listed here Excite to full voltage Excite to one half of full voltage Fail to excite None of the listed here Excite to full voltage ANSWER DOWNLOAD EXAMIANS APP
DC Generators If the flux per pole of dc generator is halved but its speed is doubled, its generated emf will Be quadrupled Remain the same Be doubled Be halved Be quadrupled Remain the same Be doubled Be halved 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 Shifting of axis of brushes Compensating winding Dummy coils Interpoles Shifting of axis of brushes Compensating winding Dummy coils Interpoles ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a dc machine, the number of commutator segment is equal to None of the listed here Twice the number of poles Number of coils Numbers of conductors None of the listed here Twice the number of poles Number of coils Numbers of conductors ANSWER DOWNLOAD EXAMIANS APP
DC Generators An 8 pole, 250 V, wave wound generator has 400 conductors. If the generator is to be lap wound, the number of conductors required is ______ 100 1600 800 3200 100 1600 800 3200 ANSWER DOWNLOAD EXAMIANS APP
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