Electrical Machines Field weakening control method is used for the _________ ? below rated speed both A and B above rated speed None of these below rated speed both A and B above rated speed None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable acidity level of power transformer insulating oil is generally taken as 0.3 mg of KOH / gm. 0.5 mg of KOH / gm. 1 mg of KOH / gm. 2 mg of KOH / gm. 0.3 mg of KOH / gm. 0.5 mg of KOH / gm. 1 mg of KOH / gm. 2 mg of KOH / gm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, the reluctance power varies as cos2δ sin2δ cosδ sinδ cos2δ sin2δ cosδ sinδ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an auto-transformer, power is transferred through conduction process only. both A and B. induction process only. None of these conduction process only. both A and B. induction process only. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Short circuiting is caused in the armature winding due to failure of insulation between two turns of coil. failure of insulation between two commutator bars. any of above. grounding of two or more turns of the same coil. failure of insulation between two turns of coil. failure of insulation between two commutator bars. any of above. grounding of two or more turns of the same coil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature shaft must be able to with stand Bending moment due to weight of the armature. Any unbalanced magnetic pull on the armature core. All of these Twisting stains due to transmission of torque. Bending moment due to weight of the armature. Any unbalanced magnetic pull on the armature core. All of these Twisting stains due to transmission of torque. ANSWER DOWNLOAD EXAMIANS APP
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