DC Generators The rapid wear of brushes takes place due to Rough commutator bars Abrasion from dust Excessive spring pressure All of these Rough commutator bars Abrasion from dust Excessive spring pressure All of these ANSWER DOWNLOAD EXAMIANS APP
DC Generators The bearings used to support the rotor shafts are generally Bush bearings Magnetic bearings Needle bearings Ball bearings Bush bearings Magnetic bearings Needle bearings Ball bearings ANSWER DOWNLOAD EXAMIANS APP
DC Generators An exciter for a turbo generator is a Series generator Compound generator Shunt generator Separately excited generator Series generator Compound generator Shunt generator Separately excited generator ANSWER DOWNLOAD EXAMIANS APP
DC Generators A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will be of 5 xiVHz will be of v Hz 5 will be zero will be of 5 Hz will be of 5 xiVHz will be of v Hz 5 will be zero will be of 5 Hz ANSWER DOWNLOAD EXAMIANS APP
DC Generators In dc generator, the constant losses is equal to None of the listed here Stray losses Mechanical losses Stray losses plus shunt cu loss None of the listed here Stray losses Mechanical losses Stray losses plus shunt cu loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field winding of a dc shunt machine usually caries _______ of the rated current of the machine. 2% to 5% More than 20% Less than 0.5 % 15 to 25% 2% to 5% More than 20% Less than 0.5 % 15 to 25% ANSWER DOWNLOAD EXAMIANS APP
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