Single Phase Induction Motor Mock Test

1. In a split phase motor, the running winding should have

2. The running winding of a single phase motor on testing with meggar is found to be ground. Most probable location of the ground will be

3. In a shaded pole motor, the shading coil usually consist of

4. Which of the following applications always have some load whenever switched on ?

5. Which of the following statements regarding repulsion-start induction motor is incorrect ?

6. Burning out of windings is due to

7. The electric motor used in portable drills is

8. In a single phase motor the centrifugal switch

9. Which of the following single-phase motors is suitable for timing and control purposes ?

10. In capacitor start single-phase motors

11. A shaded pole motor can be used for

12. Which of the following motors is used in mixies ?

13. If the capacitor of a single-phase motor is short-circuited

14. Which of the following motors has highest starting torque ?

15. The rotor of a hysteresis motor is made of

16. The power factor of a single-phase induction motor is usually

17. In repulsion motor direction of rotation of motor

18. In a hysteresis motor, the rotor must have

19. The repulsion-start induction-run motor is used because of

20. In a shaded pole single-phase motor, the revolving field is produced by the use of

21. A.C. series motor as compared to D.C. series motor has

22. Which of the following motors is inherently self starting ?

23. In case of high speed universal motor which of the following needs more attention ?

24. After the starting winding of a single phase induction motor is disconnected from supply, it continues to run only on

25. A reluctance motor

26. The direction of rotation of an hysteresis motor is determined by

27. In case of a shaded pole motor the direction of rotation of the motor is

28. Locked rotor current of a shaded pole motor is

29. The wattage of motor for driving domestic sewing machine will be around

30. A hysteresis motor works on the principle of

31. Speed control of a universal motor is achieved by

32. The wattage rating for a ceiling fan motor will be in the range

33. Which of the following motor will give the highest starting torque ?

34. Direction of rotation of a split phase motor can be reversed by reversing the connection of

35. Which of the following motors will operate at high power factor ?

36. For which of the applications a reluctance motor is preferred ?

37. In a two value capacitor motor, the capacitor used for running purposes is

38. A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will

39. Which of the following motors is preferred for tape-recorders ?

40. Which of the following motors can be run on AC. as well as D.C. supply ?

41. In A.C. series motor compensating winding is employed to

42. In a split phase motor

43. A universal motor can run on

44. In a capacitor start and run motors the function of the running capacitor in series with the auxiliary winding is to

45. Which of the following single-phase induction motors is generally used in time phonographs ?

46. Which of the following motor will have relatively higher power factor ?

47. A single-phase induction motor is

48. Short-circuiter is used in

49. The rotor developed by a single-phase motor at starting is

50. A schrage motor can run on