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1.
A 500 kW, 3-phase, 440 volts, 50 Hz, A.C. induction motor has a speed of 960 r.p.m. on full load. The machine has 6-poles. The slip of the machine will be
2.
It is advisable to avoid line starting of induction motor and use starter because
3.
Which of the following methods is easily applicable to control the speed of the squirrel-cage induction motor?
4.
In three-phase squirrel-cage induction motors
5.
In an induction motor if air-gap is increased
6.
A pump induction motor is switched on to a supply 30% lower than its rated voltage. The pump runs. What will eventually happen? It will
7.
The circle diagram for an induction motor cannot be used to determine
8.
Short-circuit test on an induction motor cannot be used to determine
9.
The torque of a rotor in an induction motor under running condition is maximum
10.
What will happen if the relative speed between the rotating flux of stator and rotor of the induction motor is zero?