Electrical Machines Lamination of transformer core is made of cast iron. silicon steel. cast steel. wrought iron. cast iron. silicon steel. cast steel. wrought iron. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power input to a 3 - φ induction motor is 60 kW and stator loss is 1 kW the rotor cu loss per phase is slip X 59 / 3. 1. slip X 69 / 3. slip X 50 / 3. slip X 59 / 3. 1. slip X 69 / 3. slip X 50 / 3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Essential conditions for two DC generators are connecting for parallel operation is/are both A and B. polarities should be same. rating of generators should be same. terminal voltage should be same. both A and B. polarities should be same. rating of generators should be same. terminal voltage should be same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What happens if fifth multiples of harmonics is given to induction motor? It will rotates in reverse direction. Fail to start. It will rotates in normal operation. Either short circuit or open circuit occurs. It will rotates in reverse direction. Fail to start. It will rotates in normal operation. Either short circuit or open circuit occurs. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In V/f speed control of 3-phase induction motor, with increase in frequency, the slip at which maximum torque occurs decrease. either of these. increase. None of these decrease. either of these. increase. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, the reluctance power varies as sin2δ sinδ cosδ cos2δ sin2δ sinδ cosδ cos2δ ANSWER DOWNLOAD EXAMIANS APP
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