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

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

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

40. What is the purpose of annealing the steel?

37. Stainless steel is an alloy composed mainly of ?

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

107. What is commonly used by a machinist and repairman in fixing files with coarsely teeth?

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

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

105. When the object you are cutting using a hand hacksaw is about to separate, how should you handle the hand hacksaw?

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

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

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

110. Which of the listed devices could be used as a ring groove cleaning tool during preparation for the installation of new rings if a piston ring cleaning tool was not available?

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

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

120. Why should two pipe joints be properly align before being connected?

132. Heat damage to fuel injection nozzles on small high-speed diesel engines can be prevented by_

173. What operation can be done during external cleaning of boiler tubes in order to prevent the accumulation of carbon deposits?

125. When drilling hole in a piece of work chuked in a lathe, where does you should mount the drill chuck?

163. If the drill point lips are ground at different angles, the drill will ?

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

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

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.

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

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

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

160. When copper plates are used for making gaskets, it is usually annealed by heating red cherry color, what is the complete process ?

126. In electric arc welding, what purpose does the electrode coating serve? .

159. The gaskets and the broken studs have been replacedon a tank manhole cover. Which of the following methods is satisfactory for testing the repair?

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

181. What is known as a welding done with a shielded or unshielded carbon or metal electrode

137. What do you call the operation of machining a uniformly roughened or checked surface on round stock in a lathe?

177. What do you call a lathe dog fitted with a headless set screw?

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

140. During routine maintenance inspection of a centrifugal pump, scoring on a pump shaft sleeve is detected.Which of the following action should be taken?

167. Which of the following problems is the main source of fuel pump and injection system malfunctions?

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

154. Before boring a blind tapered hole, a good shop practice to follow is

131. In general practice, which one makes common measurement on circular and curved surfaces in machine shops?

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

118. A hard brittle substance that are insoluble in water is called ?

144. Heat is defined as ?

103. What procedure must be formed before doing any maintenance on a hydraulic system, i.e. there is still stored energy in the accumulator?

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

151. When using a hand held hacksaw the correct maximum rate of speed for cutting should be:

128. Which of these metals can be drilled without lubrication ?

180. Which material can be drilled at the highest speed?

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

175. Boyle's law can best be defined as ?

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

122. Low pressure steam is used to keep air from leaking into turbine casing along the turbine shaft. For this purpose, which of the following steam systems is used?

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 ?

123. What tool is mainly used in cutting metals?

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

147..To avoid deformationwhen cutting thin sheet metal while using a handheld hacksaw, it should be placed between two

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

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

155. What fitting is ideal for connecting pipes with big diameters of equal length?

117. A pump shaft that is bent or distorted should normally.

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?

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

145. What tool has to be used for enlarging a hole after a drilling operation?

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?

106. Safety valve gags should only be installed hand tight in order to prevent:

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

142. Which of the listed types of gasket material should be used on high pressure fuel oil lines in a diesel engine ?

158. Rubber o-ring has an inside and outside diameter of 64mm and 74mm respectively, which of the following best describes the O-ring?

164. To safely remove the piston rod packing from the steam end of a reciprocating pump, you should

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

162. What type of file will produce a fine finish when draw filing ?

129. When tightening the nozzle nut of fuel injector , which of the following tools is used?

112. wHich one of the list should a flat chisel is the proper tools used for cutting?

109. Which non-ferous alloy is most commonly used for heat exchanger tubes and possesses a high resistance to corrosion ?

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

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

153. An acceptable method of temporary repairs in the vessel hull is

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

134. In certain cases, a cylinder liner can be refinished rather than replaced. When properly honed, the

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

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

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

116. Which of the following method listed would be most effective in repairing a steam cut on a seating surface of a super heater hand hole plate?

170. If you are cutting external threads by hand and you start the die at an angle, what will happen to the external threads ?

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

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

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

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

135. Which one of the following measured with a pyrometer?

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

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

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

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

169. What is inert gas use as shielded gas in MIG and TIG welding?

165. During cutting in milling when the chips begin to produce long and continuous, it is best that the feed is

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

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

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

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