Electrical Machines A generator may loose residual magnetism due to any of these. vibrations. heating. over excitation. any of these. vibrations. heating. over excitation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3-phase induction motor, torque and supply voltage are related as T ∝ V T∝ V² T ∝ 1/V T ∝ 1/V² T ∝ V T∝ V² T ∝ 1/V T ∝ 1/V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following windings are necessary in case of all dc machines? wave winding lap winding closed winding open type winding wave winding lap winding closed winding open type winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a given torque, reducing divertor resistance of a DC series motor Decrease in speed but armature current remains the same. Increase in speed demanding more armature current. Decrease in speed demanding less armature current. Increase in speed but armature currnet remains the same. Decrease in speed but armature current remains the same. Increase in speed demanding more armature current. Decrease in speed demanding less armature current. Increase in speed but armature currnet remains the same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tertiary winding in a transformer is mostly zig - zag delta connected. star connected. delta connected. zig - zag star connected. zig - zag delta connected. star connected. delta connected. zig - zag star connected. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is reduced, the power factor is lagging power factor leading power factor None of these unity power factor lagging power factor leading power factor None of these unity power factor ANSWER DOWNLOAD EXAMIANS APP
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