Electrical Machines For high current and low current rating which winding is employed to DC machine? Lap winding Wave winding None of above Both lap and wave winding Lap winding Wave winding None of above Both lap and wave winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an additional resistance is connected in series with a DC series motor operating at rated speed, the speed of the motor will Oscillate around the normal speed. Reduce. Increase. Remain unaltered. Oscillate around the normal speed. Reduce. Increase. Remain unaltered. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator beyond critical resistance will generate no voltage. maximum current. maximum power. maximum voltage. no voltage. maximum current. maximum power. maximum voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous motor can be started by coupling it with a DC compound motor. providing damper winding in its rotor circuit. any of the above methods. coupling it with a small AC induction motor called the pony motor. coupling it with a DC compound motor. providing damper winding in its rotor circuit. any of the above methods. coupling it with a small AC induction motor called the pony motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The maximum possible speed at which an alternator can be driven to generate 50 Hz and 4000 V is 1500 rpm. 3600 rpm. 3000 rpm. 4000 rpm. 1500 rpm. 3600 rpm. 3000 rpm. 4000 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What does the use the of height flux density value in transformer design lead to? Reduced copper loss. Reduced iron loss. Decrease in weight/KVA. Increase in weight/KVA. Reduced copper loss. Reduced iron loss. Decrease in weight/KVA. Increase in weight/KVA. ANSWER DOWNLOAD EXAMIANS APP
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