DC Generators The armature of dc machine is laminated in order to reduce Hysteresis loss Eddy current loss Copper loss Frictional loss Hysteresis loss Eddy current loss Copper loss Frictional loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speed will be High The same as rated voltage Small Zero High The same as rated voltage Small Zero ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following components of a D.C, generator plays vital role for providing direct current of a D.C. generator? Dummy coils Equalizer rings Commutator Eye bolt Dummy coils Equalizer rings Commutator Eye bolt ANSWER DOWNLOAD EXAMIANS APP
DC Generators A separately excited generator as compared to a self-excited generator Is amenable to better voltage control Is more stable Has all above features Has exciting current independent of load current Is amenable to better voltage control Is more stable Has all above features Has exciting current independent of load current ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a four-pole D.C. machine All the four poles are south poles Two north poles follow two south poles Alternate poles are north and south All the four poles are north poles All the four poles are south poles Two north poles follow two south poles Alternate poles are north and south All the four poles are north poles ANSWER DOWNLOAD EXAMIANS APP
DC Generators Inter-pole flux should be sufficient to None of these Neutralize the armature reaction flux Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil Neutralize the commutating self induced e.m.f. None of these Neutralize the armature reaction flux Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil Neutralize the commutating self induced e.m.f. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS