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_

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

30. A micrometer screw has a pitch of?

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

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

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

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

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

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?

37. Stainless steel is an alloy composed mainly of ?

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

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

40. What is the purpose of annealing the steel?

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

42. Monel metal is an alloy composed mainly of ?

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

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

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

46. Which of the following spanners is preferable to use?

47. Babbit metal is used to make ?

48. Accidental ground in a shipboard electrical system must be repaired as soon as possible as they will

49. In measuring the clearances between the main engine bearings and the crankshaft, which of these materials is commonly applied?

50. What is the workpiece motion and tool motion respectively in a horizontal boring machine?

51. For greater accuracy, some micrometers have a vernier scale making it possible to read in incriments of ?

52. The dead center of a lathe can be used only after the end of the work piece.How does the lathe hold the workpiece ?

53. For safety of the piping systems, what characteristic of gasket is most advisable to use?

54. Which one of the following files types are always Mill files?

55. To prevent vibration damage to the fuel supply line of a diesel engine, you may use:

56. When steel, cast iron, or other metals with surface scale are being turned, what roughing cut should be taken first?

57. As per regulations permit to repairs the boiler safety valves while installed on a main propulsion boiler and may be made by.

58. Pipe threads are made of what tools are you use?

59. Which of the following metal material has the lowest cutting speed for an effective rough cutting operation if a high-speed cutter is to be used in the modern milling machine onboard?

60. Copper gaskets are usually annealed by heating to red hot cherry and should be ?

61. If a centrifugal pumps delivers insufficient discharge pressure due to worn wear rings, what corrective action is called for?

62. Tapping threads into a blind hole should be finished by using a:

63. Which of the following process of annealing copper plates that are used for gaskets?

64. A side from welding, the best material to use in bonding pipes carrying low temperature liquids or fluids is

65. Which compound gauge measures pressure indicated on both high and low on outside pressure?

66. What is the cause of a bluish smoke observed in the exhaust of an operating diesel engine?

67. What is the primary use of a soft-faced hammer or mallet?

68. How would you checked the alignment of coupling faces ?

69. Which drill size would you use to machine and tap a 3/4 -10 National Coarse internal thread?

70. Which of the following characteristics is true relative to meshing with corrosion protection oils, as the resultant mixture ?

71. Which of the following metal material has the lowest cutting speed for an effective rough cutting operation if a high-speed cutter is to be used in the modern milling machine onboard ?

72. When it necessary to open a refrigeration system for repairs and the system will be open for more than a few minutes, the open ends of the system should be

73. What safety precautions should be done changing the spindle speeds on a lathe machine?

74. If a drill press is used to completely bore through a metal plate, feed pressure on the drill bit should be eased as the bit braks through the bottom of the hole to prevent

75. Small leaks in gaskets should be stopped immediately after installation because

76. Which one of the following chisels should be used for cutting oil grooves?

77. Packing rings installed on auxiliary turbines are lubricated by

78. The number of screw threads per inch for a Standard National Coarse 1/2 inch bolt is:

79. Which of the following kind of metal is ductile and maleable that can be ccorroded by air or water ?

80. Used to reduce cargo pump leakage to the pump room bilge of a tanker ship is the

81. Sealing lines provide sealing liquid flow to the stuffing box of a centrifugal pump.

82. The loop seal connected to the main condenser returns the drains from the

83. A diesel engine fails to start due to excessive water in the fuel. Which items on the list where the water should removed before the engine can be started ?

84. To repair or replace defective diesel engine high pressure fuel pipe it must be of the same length and diameter as the original piping.

85. Which of the files listed can be used for sharpening a tool?

86. Which of the fittings should be used for installation of piping to permit removal of the pump for servicing?

87. The best method of fixing a winch motor bearing of the sealed type tha is running hot is to

88. The gasket and the broken studs have been replaced on a tank manhole cover. Which of the following methods is satisfactory for testing the repai?

89. Gland sealing steam is used during steam turbine operation to prevent the loss of

90. If the capacity of a centrifugal pump decreases gradually over a long period of time, you should replace the

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

92. What machine which can flatter surface on horizontal, vertical or angular plane?

93. To prevent overheating and scoring of the shaft after repacking the stuffing box, which of the following procedures should be carried out ?

94. When renewing sections of pipe in a hydraulic system, it should always indicate the nominal pipe size of the piping?

95. To repair a small electrical motor that has been submerged in salt water, you should,

96. What saw is more suitable for cutting metal in tight quarters ?

97. Which of the listed tools should be used to remove a tapered roller bearing from a shaft?

98. What kind of non-metallic mineral material which can withstand very high temperature and unaffected by steam petrol, paraffin, fuel, oil and lubricants?

99. Which of the following sensing device in a pressure gauge using the Bourdon principle?

100. After using a pipe cutter to cut a piece of pipe, the inside edge of the pipe should be