Electrical Machines For a transformer to be tested at full load conditions but consuming only losses from the main, we do OC and SC tests load test back to back test None of these OC and SC tests load test back to back test None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 2 KVA transformer has iron loss of 150 W and full load copper loss of 250 W. The maximum efficiency of the transformer would occur when the total loss is 250 W 300 W 400W 500 W 250 W 300 W 400W 500 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 250 V DC generator in run at rated speed with no excitation. The open circuit voltage will be very small, say about 2 or 3 V. zero. 250 V. about 100 V. very small, say about 2 or 3 V. zero. 250 V. about 100 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The heat transfer by convection in a transformer least depends on surface area. color of the paint. temperature difference. air velocity. surface area. color of the paint. temperature difference. air velocity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements is/are correct ? Inter pole winding will act in interpolar region. Both A and B. Compensating winding will act under the pole. None of these Inter pole winding will act in interpolar region. Both A and B. Compensating winding will act under the pole. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the space waveform of the air-gap flux distribution affects torque but not the voltage neither the voltage nor the torque voltage but not the torque both the torque and voltage torque but not the voltage neither the voltage nor the torque voltage but not the torque both the torque and voltage ANSWER DOWNLOAD EXAMIANS APP
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