DC Generators While applying Fleming's right-hand rule to and the direction of induced e.m.f., the thumb points towards Direction of motion of the conductor if forefinger points in the direction of generated e.m.f. Direction of induced e.m.f. Direction of motion of conductor, if forefinger points along the lines of flux Direction of flux Direction of motion of the conductor if forefinger points in the direction of generated e.m.f. Direction of induced e.m.f. Direction of motion of conductor, if forefinger points along the lines of flux Direction of flux ANSWER DOWNLOAD EXAMIANS APP
DC Generators The nature of armature winding of a dc machine is decided by Back pitch None of the listed here Commutator pitch Front pitch Back pitch None of the listed here Commutator pitch Front pitch ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators, current to the external circuit from armature is given through Commutator Slip rings None of above Solid connection Commutator Slip rings None of above Solid connection 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 increase the speed of primemover increase the field resistance reverse the field connections check armature insulation resistance increase the speed of primemover increase the field resistance reverse the field connections check armature insulation resistance ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a commutator Copper is harder than mica None of the listed here Mica is harder than copper Mica and copper are equally hard Copper is harder than mica None of the listed here Mica is harder than copper Mica and copper are equally hard 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. To increase the series flux So that two similar machines will pass approximately equal currents to the load To reduce the combined effect of armature reaction of both machines To increase the speed and hence generated e.m.f. To increase the series flux So that two similar machines will pass approximately equal currents to the load To reduce the combined effect of armature reaction of both machines ANSWER DOWNLOAD EXAMIANS APP
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