DC Generators The open circuit voltage of a compound generator is 250 V. At full load the terminal voltage None of these May be greater or less than 250 V Will be less than 250 V Will always be 250 V None of these May be greater or less than 250 V Will be less than 250 V Will always be 250 V ANSWER DOWNLOAD EXAMIANS APP
DC Generators To avoid formation of grooves in the commutator of a D.C. machine All of these Brush position has no effect on the commutator grooving The brushes of same polarity should track each other The brushes of opposite polarity should track each other All of these Brush position has no effect on the commutator grooving The brushes of same polarity should track each other The brushes of opposite polarity should track each other 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 The same as rated voltage Zero Small High The same as rated voltage Zero Small High 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 None of the listed here Excite to one half of full voltage Fail to excite Excite to full voltage None of the listed here Excite to one half of full voltage Fail to excite Excite to full voltage ANSWER DOWNLOAD EXAMIANS APP
DC Generators A 4-pole , lap wound dc shunt generator has an armature winding consisting of 220 turns each of 0.004 Ω. The armature resistance is 0.5 Ω 1 Ω 0.055 Ω 0.025 Ω 0.5 Ω 1 Ω 0.055 Ω 0.025 Ω ANSWER DOWNLOAD EXAMIANS APP
DC Generators The nature of armature winding of a dc machine is decided by Commutator pitch Back pitch None of the listed here Front pitch Commutator pitch Back pitch None of the listed here Front pitch ANSWER DOWNLOAD EXAMIANS APP
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