Electrical Machines A small air gap in poly phase induction motor helps to reduce chance of cogging. increase starting torque. reduce chance of crawling. reduce magnetizing current. reduce chance of cogging. increase starting torque. reduce chance of crawling. reduce magnetizing current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft of induction motor should be any of these. stiff. hollow. flexible. any of these. stiff. hollow. flexible. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field weakening method is also called as-----------? constant current control constant power control constant torque control constant voltage control constant current control constant power control constant torque control constant voltage control ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Sparkless commutation can be achieved by employing compensating winding. inter poles. any one or more of the above methods. high resistance carbon brushes. compensating winding. inter poles. any one or more of the above methods. high resistance carbon brushes. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 10KVA auto transformer, turn ratio is 0.4. Find the power transferred inductively? 6 KVA 10 KVA 4 KVA 0 KVA 6 KVA 10 KVA 4 KVA 0 KVA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loss is proportional to f. f2. f1.5. f3. f. f2. f1.5. f3. ANSWER DOWNLOAD EXAMIANS APP