DC Generators A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will be of v Hz 5 will be of 5 Hz will be zero will be of 5 xiVHz will be of v Hz 5 will be of 5 Hz will be zero will be of 5 xiVHz ANSWER DOWNLOAD EXAMIANS APP
DC Generators The efficiency of a dc generator means its Electrical efficiency Overall efficiency Mechanical efficiency None of the listed here Electrical efficiency Overall efficiency Mechanical efficiency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The coupling field between electrical and mechanical systems of a dc machine is ______ Both electrical and magnetic fields None of the listed here Electric field Magnetic field Both electrical and magnetic fields None of the listed here Electric field Magnetic field 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 0.025 Ω 0.055 Ω 1 Ω 0.5 Ω 0.025 Ω 0.055 Ω 1 Ω 0.5 Ω ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. generators are running in parallel an equalizer bar is used To reduce the combined effect of armature reaction of both the machines So that the two identical machines will pass approximately equal currents to the load To increase the series flux To increase the generated e.m.f. To reduce the combined effect of armature reaction of both the machines So that the two identical machines will pass approximately equal currents to the load To increase the series flux To increase the generated e.m.f. ANSWER DOWNLOAD EXAMIANS APP
DC Generators The size of a dc generator can be reduced by using ______ Iron commutator Lap winding Magnetic material of high permeability High resistance winding material Iron commutator Lap winding Magnetic material of high permeability High resistance winding material ANSWER DOWNLOAD EXAMIANS APP
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