Electrical Machines In a single phase induction motor driving a fan load, the reason for having a high resistance rotor is to achieve low starting torque. high efficiency. reduced size. quick acceleration. low starting torque. high efficiency. reduced size. quick acceleration. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a 3-phase induction motor operating in its stable region increases with increase in the load torque. remains constant. decreases with increase in the load torque. decreases with decrease in the load torque. increases with increase in the load torque. remains constant. decreases with increase in the load torque. decreases with decrease in the load torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To get the speed of DC motor more than normal without wastage of electrical energy _____________ is used. rheostatic control. any of above method. Ward Leonard control. none of above. rheostatic control. any of above method. Ward Leonard control. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field winding connection of DC shunt motor is changed It will run in opposite direction. motor will become slow. motor will not run. It will run in same direction. It will run in opposite direction. motor will become slow. motor will not run. It will run in same direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A three phase induction motor has a synchronous speed of 1500 rpm the machine runs at 1460 rpm at a particular load. The slip at this load is ___________. 5 %. 2.67 %. 1.5 %. 30 %. 5 %. 2.67 %. 1.5 %. 30 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A short-shunt cumulatively-compounded dc generator builds up a voltage of 220 V at no load at rated speed. If it is operated as a differentially compounded generator, other things remaining the same, it would build up more than 220 V 220 V 6 V somewhat less than 220 V more than 220 V 220 V 6 V somewhat less than 220 V ANSWER DOWNLOAD EXAMIANS APP
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