Computer Programming MCQs

5739 MCQs  (Page 534 of 574)

The shaft of an induction motor is made of_____________?
A. High speed steel
B. Stainless steel
C. Carbon steel
D. Cast iron
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
The torque of an induction motor is___________?
A. Directly proportional to slip
B. Inversely proportional to slip
C. Proportional to the square of the slip
D. None of the above
A D.C. generator works on the principle of____________?
A. Lenz’s law
B. Ohm’s law
C. Faraday’s law of electromagnetic induction
D. None of the above