Electrical Machines When a transformer is loaded, the secondary terminal voltage drops. That means power factor is lagging. unity. zero. leading. lagging. unity. zero. leading. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a DC cummulative compound wound motor is loaded Torque decrease and speed increases. Both torque and speed decrease. Torque increase and speed decrease. Torque and speed both increase. Torque decrease and speed increases. Both torque and speed decrease. Torque increase and speed decrease. Torque and speed both increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eddy current loss will depends on Thickness Flux density All of these Frequency Thickness Flux density All of these Frequency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The three point starter is used for Shunt motor. Shunt, compound and series motor. Shunt motor as well as compound motors. Series motor. Shunt motor. Shunt, compound and series motor. Shunt motor as well as compound motors. Series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For successful parallel operation of two single phase transformers, the most essential condition is that their polarities are properly connected percentage impedances are equal KVA ratings are equal turn- ratios are exactly equal polarities are properly connected percentage impedances are equal KVA ratings are equal turn- ratios are exactly equal ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single phase transformer when supplied from 220 V, 50 Hz has eddy current loss of 50 W. If the transformer is connected voltage of 330 V, 75 Hz, the eddy current loss will be 50 W 112.5 W 75 W 168.75 W 50 W 112.5 W 75 W 168.75 W ANSWER DOWNLOAD EXAMIANS APP
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