Rotor rheostat control method of speed control is used for____________?

A. Squirrel-cage induction motors only
B. Slip ring induction motors only
C. Both a. and (b)
D. None of the above

For which motor the speed can be controlled from rotor side ?

A. Squirrel-cage induction motor
B. Slip-ring induction motor
C. Both a. and (b)
D. None of the above

In the circle diagram for induction motor, the diameter of the circle represents____________?

A. Slip
B. Rotor current
C. Running torque
D. Line voltage

Stepless speed control of induction motor is possible by which of the following methods ?

A. E.m.f. injection in rotor eueuit
B. Changing the number of poles
C. Cascade operation
D. None of the above

It is advisable to avoid line-starting of induction motor and use starter because__________?

A. Motor takes five to seven times its full load current
B. It will pick-up very high speed and may go out of step
C. It will run in reverse direction
D. Starting torque is very high

When the equivalent circuit diagram of doouble squirrel-cage induction motor is constructed the two cages can be considered__________?

A. In series
B. In parallel
C. In series-parallel
D. In parallel with stator

The torque developed in the cage induction motor with autostarter is___________?

A. K/torque with direct switching
B. K x torque with direct switching
C. K2 x torque with direct switching
D. K2/torque with direct switching

The auto-starters (using three auto transformers) can be used to start cage induction motor of the following type__________?

A. Star connected only
B. Delta connected only
C. A. and b. both
D. None of the above

The crawling in the induction motor is caused by____________?

A. Low voltage supply
B. High loads
C. Harmonics develped in the motor
D. Improper design of the machine

Which of the following countries won women T-20 Asia cup on 11 June 2018

A. India
B. Pakistan
C. Bangladesh
D. Sri lanka