33. A centrifugal pump vibrates excessively during operation, Upon dissasembling the pump it is found that the impeller is out of balance. Without an available spare, you should

37. Stainless steel is an alloy composed mainly of ?

12. A follower rest should make use of a lathe to machine.

42. Monel metal is an alloy composed mainly of ?

13. Which of the files listed is commonly referred to as a "rat-tail"file?

9. Knowing the construction and the operating action of the milling machine will lessen the chance of the machine from being

41. This method is used for joining sheet metal and for attaching studs, rods and busses, etc. to plates.

17. The lower water seal on a diesel engine wet cylinder liner must allow for liner expansion and contraction. This seal is most commonly a

25. What type of tooth set on a hacksaw blade where every third tooth remains straight, while the other two are alternately set?

14. When drilling hole in a piece of work chuked in a lathe you should mount the drill chunk in the_

18. What is the complete process when copper plates are used for making gaskets that is usually annealed by heating red cherry color?

11. Hacksaw cutting is more effective when pressure is applied on the ?

45. Temporary repairs to an open DC propulsion armature coilcan be made by .

19. What is this kind of metal which is light, strong and corrosion -resistant used as the plate material in plate-type heat exchanger ?

35. The term refering to the number of teeth per inch on a hacksaw blade is known as the ?

27. How do you make it easier for a hand hacksaw to cut a work piece?

39. What is the ultimate stress of mild steel used in boiler plates?

15. What should you do when using a chisel with a mushroom head?

38. What size circular bar is required to make a hexagonal nut of 16mm sides along the:

5. The blade for a power hacksaw should be installed with the teeth:

22. When the timing gear backlash for a Roots-type blower has become excessive, the problem is properly repaired by.

7. Which of the following hand taps are recommended in cutting internal threads on a blind hole?

2. What is the end of shaft condition before the maintenance repair is carried out?

44. Which of the listed numeric values represents the smallest size drill?

10. Diesel engine piston ring ends can be machined in different shapes. The step-cut ring end offers the advantage of:

34. What metal is used as an alloying material in the manufacture of varius special steels ?

43. When replacing packing rings in the stuffing boxes of reciprocating pump piston rods, the ends of the rings should be cut ?

36. After removing an old set of of rings, which of the following conditions is indicated if a bright spot is found on each end of a broken piston ring?

24. What hand tool is commonly used in drilling, reaming, hand tapping, and die threading processes?

29. When repacking a stuffing box fitted with a lantern ring, which of the following precautions should be observed?

16. What is the theoretical lift of a pump handling fresh water at atmospheric pressure?

32. Before using an all-purpose electric measuring instrument (multimeter) utilizing internal batteries to supply power for resistance measurements, you should first

1. When drilling blind holes with standard drill press, the proper method of stopping the progress of the drill boring through the work is by_

21. How do you call a welding process with the work in the positive pole and the electrode in the negative pole?

8. Which of the followwing indicator is used to determine the hardness of a grease?

6. Which of the following types of files would produce a fine finish when draw filing?

23. Which features of a centrifugal pump reduce the need for renewing worn impellers and pump casings?

26. What operation is used in smoothing and squaring the surface of a round hole ?

28. What is the primary used of a soft faced hammer or mallet?

20. Which of the files listed will have coarsely spaced teeth?

4. What precaution should be followed when using a chisel having a mushroom head?

40. What is the purpose of annealing the steel?

30. A micrometer screw has a pitch of?

3. Why should two pipe joints be properly aligned before being connected?

31. When using centre lathe, why should you short sleeves or close fitting sleeves be worn?