DC Generators The field winding of a dc shunt machine usually caries _______ of the rated current of the machine. 15 to 25% Less than 0.5 % More than 20% 2% to 5% 15 to 25% Less than 0.5 % More than 20% 2% to 5% ANSWER DOWNLOAD EXAMIANS APP
DC Generators The terminal voltage of a D.C. shunt generator drops on load because of all of the following reasons except Commutation Field weakening due to armature reaction and armature Armature resistance drop Armature reaction Commutation Field weakening due to armature reaction and armature Armature resistance drop Armature reaction ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a long shunt compound wound generator , the shunt field is connected in parallel with Series combination of armature and series field Parallel combination of armature and series field Series field Armature Series combination of armature and series field Parallel combination of armature and series field Series field Armature ANSWER DOWNLOAD EXAMIANS APP
DC Generators The purpose of providing dummy coils in a generator is To provide mechanical balance for the rotor To reduce eddy current losses To enhance flux density To amplify voltage To provide mechanical balance for the rotor To reduce eddy current losses To enhance flux density To amplify voltage 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 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. None of these Neutralize the armature reaction flux ANSWER DOWNLOAD EXAMIANS APP
DC Generators In dc generator, the constant losses is equal to Stray losses Stray losses plus shunt cu loss None of the listed here Mechanical losses Stray losses Stray losses plus shunt cu loss None of the listed here Mechanical losses ANSWER DOWNLOAD EXAMIANS APP
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