DC Generators In a four-pole D.C. machine Two north poles follow two south poles All the four poles are south poles All the four poles are north poles Alternate poles are north and south Two north poles follow two south poles All the four poles are south poles All the four poles are north poles Alternate poles are north and south ANSWER DOWNLOAD EXAMIANS APP
DC Generators A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will be zero will be of v Hz 5 will be of 5 xiVHz will be of 5 Hz will be zero will be of v Hz 5 will be of 5 xiVHz will be of 5 Hz ANSWER DOWNLOAD EXAMIANS APP
DC Generators The yoke of a dc machine is made of Cast steel Soft iron Aluminum Silicon steel Cast steel Soft iron Aluminum Silicon steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature core of a D.C. generator is usually made of Nonferrous material Silicon steel Cast-iron Copper Nonferrous material Silicon steel Cast-iron Copper 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 Permeance is the reciprocal of Ampere turns Flux density Reluctance Resistance Ampere turns Flux density Reluctance Resistance ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS