DC Generators In D.C. generators, current to the external circuit from armature is given through Commutator None of above Solid connection Slip rings Commutator None of above Solid connection Slip rings ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature conductors of a 6 pole, lap wound dc generator are divided into 3 parallel paths 6 parallel paths 4 parallel paths 2 parallel paths 3 parallel paths 6 parallel paths 4 parallel paths 2 parallel paths ANSWER DOWNLOAD EXAMIANS APP
DC Generators The commutator of a dc generator acts as An amplifier A load None of the listed here A rectifier An amplifier A load None of the listed here A rectifier ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a four-pole D.C. machine All the four poles are south poles All the four poles are north poles Two north poles follow two south poles Alternate poles are north and south All the four poles are south poles All the four poles are north poles Two north poles follow two south poles Alternate poles are north and south ANSWER DOWNLOAD EXAMIANS APP
DC Generators If a self excited D.C. generator after being installed, fails to build up on its first trial run, the first thing to do is to reverse the field connections check armature insulation resistance increase the field resistance increase the speed of primemover reverse the field connections check armature insulation resistance increase the field resistance increase the speed of primemover ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. series generators are running in parallel, an equalizer bar is used 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 To increase the series flux To reduce the combined effect of armature reaction of both machines ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS