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