Electrical Machines Silicon content in steel lamination is kept within 5% as it increases hysteresis loss. Increases cost. All of these makes the material brittle. increases hysteresis loss. Increases cost. All of these makes the material brittle. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machines, the interpoles are provided to counteract the reactance voltage and the cross-magnetizi both (B) and (C). to make commutation spark less. to counteract demagnetizing effect of armature mmf in commutating zone. to counteract the reactance voltage and the cross-magnetizi both (B) and (C). to make commutation spark less. to counteract demagnetizing effect of armature mmf in commutating zone. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flashing of DC generator means neutralization of residual magnetism. creation of residual magnetism by a DC source. None of these increasing flux density by providing extra ampere-turns in field. neutralization of residual magnetism. creation of residual magnetism by a DC source. None of these increasing flux density by providing extra ampere-turns in field. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction depends on which of the following? both 1 and 2 None of these magnitude of load current power factor of load both 1 and 2 None of these magnitude of load current power factor of load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable acidity level of power transformer insulating oil is generally taken as 2 mg of KOH / gm. 1 mg of KOH / gm. 0.3 mg of KOH / gm. 0.5 mg of KOH / gm. 2 mg of KOH / gm. 1 mg of KOH / gm. 0.3 mg of KOH / gm. 0.5 mg of KOH / gm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine shape of main field flux distribution is? flat tapped or trapezoidal peaky in nature saddle shape triangular flat tapped or trapezoidal peaky in nature saddle shape triangular ANSWER DOWNLOAD EXAMIANS APP
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