A double squirrel-cage induction motor has______________?

A. Two rotors moving in oppsite direction
B. Two parallel windings in stator
C. Two parallel windings in rotor
D. Two series windings in stator

Star-delta starting of motors is not possible in case of____________?

A. Single phase motors
B. Variable speed motors
C. Low horse power motors
D. High speed motors

The starting torque of a squirrel-cage induction motor is___________?

A. Low
B. Negligible
C. Same as full-load torque
D. Slightly more than full-load torque

In Ns is the synchronous speed and s the slip, then actual running speed of an induction motor will be___________?

A. Ns
B. S.n,
C. (l-s)ns
D. (ns-l)s

Slip rings are usually made of___________?

A. Copper
B. Carbon
C. Phospor bronze
D. Aluminium

In case the air gap in an induction motor is increased____________?

A. The magnetising current of the rotor will decrease
B. The power factor will decrease
C. Speed of motor will increase
D. The windage losses will increase

In squirrel cage induction motors, the rotor slots are usually given slight skew in order to__________?

A. Reduce windage losses
B. Reduce eddy currents
C. Reduce accumulation of dirt and dust
D. Reduce magnetic hum

In medium sized induction motors, the slip is generally around___________?

A. 0.04%
B. 0.4%
C. 4%
D. 14%

Which of the following component is usually fabricated out of silicon steel ?

A. Bearings
B. Shaft
C. Statorcore
D. None of the above

Who is the Current Opposition leader of Punjab Assembly?

A. Shehbaz sharif
B. Mian mehmood ur rashid
C. Hamza shehbaz
D. Ahsan iqbal