Electrical Machines Which of the following is/are not a self starting motor? both 1 and 2 1-phase induction motor 3-phase induction motor None of these both 1 and 2 1-phase induction motor 3-phase induction motor None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For an ideal transformer the winding should have minimum resistance on primary side and maximum resistance on secondary side equal resistance on primary and secondary side no ohmic resistance on either side maximum resistance on primary side and least resistance on secondary side minimum resistance on primary side and maximum resistance on secondary side equal resistance on primary and secondary side no ohmic resistance on either side maximum resistance on primary side and least resistance on secondary side 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 ___________. 2.67 %. 1.5 %. 30 %. 5 %. 2.67 %. 1.5 %. 30 %. 5 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronising power of a synchronous motor varies directly as Xs2 All of these directly as synchronous reactances Xs inversely as 1/Xs directly as Xs2 All of these directly as synchronous reactances Xs inversely as 1/Xs ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test on induction motor is conducted to find which of the following losses? Rotational loss Stator core loss All of these Stator copper loss Rotational loss Stator core loss All of these Stator copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor must started on no load because it would Draw more current without producing sufficient torque. Fail to start without load. Run at dangerously high speed. Not develop starting torque. Draw more current without producing sufficient torque. Fail to start without load. Run at dangerously high speed. Not develop starting torque. ANSWER DOWNLOAD EXAMIANS APP
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