DC Generators Which of the following will not prevent a self excited shunt generator from building upto its full voltage? Open field Speed too high Wrong direction of rotation No residual magnetism Open field Speed too high Wrong direction of rotation No residual magnetism ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature winding of a dc machine is place on the rotor to ______ Reduce losses Save iron Reduce armature reaction Facilitate commutation Reduce losses Save iron Reduce armature reaction Facilitate commutation ANSWER DOWNLOAD EXAMIANS APP
DC Generators The rapid wear of brushes takes place due to Rough commutator bars Excessive spring pressure Abrasion from dust All of these Rough commutator bars Excessive spring pressure Abrasion from dust All of these ANSWER DOWNLOAD EXAMIANS APP
DC Generators Inter-pole flux should be sufficient to Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil Neutralize the armature reaction flux Neutralize the commutating self induced e.m.f. None of these Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil Neutralize the armature reaction flux Neutralize the commutating self induced e.m.f. None of these ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following generator provides approximately constant voltage from no load to full load? Flat compounded Shunt Series Over compounded Flat compounded Shunt Series Over compounded ANSWER DOWNLOAD EXAMIANS APP
DC Generators An 8 pole duplex lap winding will have ______ parallel paths. 8 16 4 32 8 16 4 32 ANSWER DOWNLOAD EXAMIANS APP
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