DC Generators The yoke of a dc machine is made of Soft iron Cast steel Aluminum Silicon steel Soft iron Cast steel Aluminum Silicon steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. series generators are running in parallel, an equalizer bar is used To increase the series flux To reduce the combined effect of armature reaction of both machines To increase the speed and hence generated e.m.f. So that two similar machines will pass approximately equal currents to the load To increase the series flux To reduce the combined effect of armature reaction of both machines To increase the speed and hence generated e.m.f. So that two similar machines will pass approximately equal currents to the load ANSWER DOWNLOAD EXAMIANS APP
DC Generators The rapid wear of brushes takes place due to All of these Rough commutator bars Abrasion from dust Excessive spring pressure All of these Rough commutator bars Abrasion from dust Excessive spring pressure ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field winding of a dc shunt machine usually caries _______ of the rated current of the machine. Less than 0.5 % 15 to 25% More than 20% 2% to 5% Less than 0.5 % 15 to 25% More than 20% 2% to 5% ANSWER DOWNLOAD EXAMIANS APP
DC Generators ______ dc machine are most common. 4 pole 6 pole 2 pole 8 pole 4 pole 6 pole 2 pole 8 pole ANSWER DOWNLOAD EXAMIANS APP
DC Generators In dc generator, the generated voltage depend upon Flux only Both speed and flux Speed only None of the listed here Flux only Both speed and flux Speed only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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