Electrical Machines A 20KVA auto transformer, turn ratio is 0.8. Find the power transferred conductively? 16KVA 4KVA 20KVA 0KVA 16KVA 4KVA 20KVA 0KVA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a single phase induction motor driving a fan load, the reason for having a high resistance rotor is to achieve low starting torque. quick acceleration. high efficiency. reduced size. low starting torque. quick acceleration. high efficiency. reduced size. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator without commutator is a AC generator induction motor DC motor DC generator AC generator induction motor DC motor DC generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding are used to rectify the flux density waveform at region under main pole. None of these throughout the air gap. interpole region. region under main pole. None of these throughout the air gap. interpole region. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hunting in a synchronous motor takes place when power factor is unity. motor is under loaded. when supply voltage fluctuates. when load varies. when power factor is unity. motor is under loaded. when supply voltage fluctuates. when load varies. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A self-excited shunt generator fails to build up, because 1. the field circuit is open 2. The armature circuit is open 3. the residual magnetism is absent 4. The direction of rotation is wrong From these, the correct answer is 1, 3 3 only 1, 2 and 3 1, 2, 3 and 4 1, 3 3 only 1, 2 and 3 1, 2, 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
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