Electrical Machines In 3 - Φ induction motor some times copper bars are placed deep in the rotor to improve starting torque. reduce copper loss. improve power factor. improve efficiency. improve starting torque. reduce copper loss. improve power factor. improve efficiency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The induction motor shaft is made of stainless steel. cast iron. aluminium. mild steel. stainless steel. cast iron. aluminium. mild steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft of induction motor may be unbalanced due to poor lubrication. overload. uneven air gap. overheating of winding. poor lubrication. overload. uneven air gap. overheating of winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Motors for fans and pumps are selected in the rpm range 500 to 720. 375 to 500. 1440 to 2880. 720 to 920. 500 to 720. 375 to 500. 1440 to 2880. 720 to 920. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motors provided with open slots have less breakdown torque. higher efficiency. leading power factor. more breakdown torque. less breakdown torque. higher efficiency. leading power factor. more breakdown torque. ANSWER DOWNLOAD EXAMIANS APP
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