Assessment Test


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1. Which statement is true concerning alkaline reserve as it applies to a lubricating oil?

 
 
 
 

2. In which lubrication application is a lubricating oil with an alkaline reserve most likely to be used?

 
 
 
 

3. A bearing using an oiling ring as a means of static oil feed must occasionally be serviced by removing the wear particles, grit, and moisture. How is this accomplished?

 
 
 
 

4. On a bearing using an oiling ring as a means of static oil feed, at what oil level is the bearing maintained?

 
 
 
 

5. On a bearing using an oiling ring as a means of static oil feed, how often should the bottom of the bearing sump be drained of impurities?

 
 
 
 

6. If the bearings of a piece of machinery are fed by a gravity feed lubricating oil system, what statement is true?

 
 
 
 

7. If the bearings of a piece of machinery are force-fed by a pressure feed lubricating oil system, which statement is true?

 
 
 
 

8. If the bearings of a piece of machinery are fed by a gravity feed lubricating oil system, what statement is true concerning the vertical arrangement of the lube oil tanks?

 
 
 
 

9. On a bearing using an oiling ring as means of static oil feed, unless adverse conditions would indicate otherwise, how often should the oil be completely changed at a minimum?

 
 
 
 

10. Which type of lubricating oil method is LEAST likely to have a lube oil strainer or filter?

 
 
 
 

11. In a forced-feed lubrication system, what statement is true concerning lube oil reservoir/sump residence time?

 
 
 
 

12. In a forced-feed lubrication system, what statement is true concerning lube oil reservoir/sump residence time?

 
 
 
 

13. Adsorption filters are not commonly used in steam turbine or diesel engine lubricating systems because they __________.

 
 
 
 

14. The greatest difference between absorbent and adsorbent filters is that absorbent filters _

 
 
 
 

15. Which of the following statements best describes the straining ability of a fine mesh metal lube oil strainer?

 
 
 
 

16. Which of the following lube oil filters would be considered acceptable for use with today's high detergent additive type oils?

 
 
 
 

17. Which of the filter/strainer units listed permits you to replace or clean the element while leaving the system on the line?

 
 
 
 

18. Which of the following types of diesel engine lubricating oil filtration schemes must be equipped with a bypass relief valve to insure that the engine bearings are not starved of oil if the filter element should become severely restricted or blocked?

 
 
 
 

19. Which of the following types of lubricating oil filters is not fitted with a replaceable filter element and is serviced by cleaning?

 
 
 
 

20. What type of diesel engine lubricating oil filtration scheme filters the entire output of the lubricating oil pump prior to delivery to the lubricating oil supply manifold of the engine?

 
 
 
 

21. What type of diesel engine lubricating oil filtration scheme filters a small portion of the output of the lubricating oil pump prior to delivery back to the sump via a fine filter?

 
 
 
 

22. What is the BEST indication that a diesel engine full-flow lubricating oil filter must be serviced?

 
 
 
 

23. The ability of a metal to be hammered, or rolled out is called its __________.

 
 
 
 

24. Reheating a hardened component to a temperature lower than the hardening temperature and then cooling it is known as __________.

 
 
 
 

25. When hardened metal is heat-treated by a process known as tempering, what metallurgical properties are achieved?

 
 
 
 

26. When metal is tempered, it becomes __________.

 
 
 
 

27. What is the purpose of heat treating steel?

 
 
 
 

28. Monel metal is an alloy composed mainly of __________.

 
 
 
 

29. When a metal is undergoing heat treatment, what happens when the metal is heated above its critical temperature?

 
 
 
 

30. When a metal is undergoing heat treatment for the purposes of annealing, besides refining the grain structure, what is the determining characteristic of the metal?

 
 
 
 

31. When a low carbon steel is undergoing heat treatment for the purposes of casehardening, what is the process that distinguishes this procedure from other hardening methods?

 
 
 
 

32. What effect does preheating, concurrent heating, or post heating have on a welding a joint?

 
 
 
 

33. What is meant by the term tensile strength of a material?

 
 
 
 

34. What is meant by the term toughness as it applies to a material?

 
 
 
 

35. What type of fuel oil as part of an oily-water mixture is most likely to have a density approaching that of water?

 
 
 
 

36. What statement is true concerning the effect of elevating the temperature of the oily- water mixture associated with an oily-water separator?

 
 
 
 

37. What is an engine room bilge oily-water separator designed to do?

 
 
 
 

38. What statement is true concerning the polishing coalescer filter of an oily-water separator?

 
 
 
 

39. In order to facilitate separation of oil from an oily-water mixture in an oily-water separator, what statement is true concerning the flow pattern of the oily-water?

 
 
 
 

40. What type of oil as part of an oily-water mixture is most likely to require heating to facilitate separation in an oily-water separator?

 
 
 
 

41. What statement is true with regard to the basic operating principle of gravity associated with an oily-water separator?

 
 
 
 

42. If an oily-water separator uses an inclined plate pack to facilitate separation, what statement concerning the plate pack is true?

 
 
 
 

43. As it pertains to safety valves, what is the definition of blow down?

 
 
 
 

44. Concerning safety valves, what statement is true?

 
 
 
 

45. Which of the following listed valves would require "blow down" to insure proper operation and prevent damage due to repeated and rapid opening and closing?

 
 
 
 

46. Concerning pressure-relief valves, what statement is true?

 
 
 
 

47. Concerning sentinel valves, what statement is true?

 
 
 
 

48. Suppose a steam trap's primary purpose is to insure good heat transfer of a steam- heated heat exchanger. What statement is true concerning the outcome of a steam trap failure?

 
 
 
 

49. What statement representing the primary purpose of a steam trap is true?

 
 
 
 

50. What type of steam trap is most susceptible to damage if allowed to come into contact with superheated steam?

 
 
 
 

51. In order for a steam trap to be effective in accomplishing its intended purpose, what statement is true regarding its installation?

 
 
 
 

52. In order for heat transfer to take place between two substances, what essential condition must exist?

 
 
 
 

53. What mode of heat transfer is associated with the transport of thermal energy from one location to another by fluid in motion?

 
 
 
 

54. What mode of heat transfer is associated with the transport of thermal energy within a body or between two bodies in direct contact?

 
 
 
 

55. What mode of heat transfer is associated with the transport of thermal energy through a transparent medium by means of electro-magnetic energy in the infrared spectrum?

 
 
 
 

56. Overall heat transfer processes often involve two or more modes of heat transfer. Specifically, when heat is being transferred from one side of an air compressor cylinder wall to the opposite side, what mode of heat transfer is associated with that particular part of the overall process?

 
 
 
 

57. What statement is true concerning the heat transfer rates through a heat exchanger boundary wall by conduction?

 
 
 
 

58. What statement is true concerning heat transfer rates by the heat transfer mode of natural convection?

 
 
 
 

59. What statement represents the first law of thermodynamics?

 
 
 
 

60. What statement represents the second law of thermodynamics?

 
 
 
 

61. If Boyles' law describes the relationship between the pressure and volume of ideal gases, what statement is true?

 
 
 
 

62. If Charles' law describes the relationship between the temperature and volume of ideal gases, what statement is true?

 
 
 
 

63. What term is defined as the quantity of heat necessary to raise the temperature of a unit mass of a substance one degree?

 
 
 
 

64. What statement represents the ideal gas law?

 
 
 
 

65. What term is defined as the amount of heat required to convert a unit mass of a substance from a liquid to a vapor at constant temperature and pressure?

 
 
 
 

66. What term is defined as the rate of doing work?

 
 
 
 

67. What statement is true concerning thermal energy in transition?

 
 
 
 

68. What statement is true concerning the internal energy of a substance?

 
 
 
 

69. Which of the following propulsor types represents the proper terminology for a Kort nozzle?

 
 
 
 

70. Which of the following propulsor types represents the proper terminology for a Voith- Schneider drive?

 
 
 
 

71. Which of the following propulsor types represents the proper terminology for a screw propeller of the conventional design?

 
 
 
 

72. When an electricity generating plant features shaft-driven generators, what type of propulsor is generally used for main propulsion?

 
 
 
 

73. Which of the following propulsor types would be used with unidirectional propulsion shafting rotation?

 
 
 
 

74. What type of propeller consists of a flat disc set flush with the under surface of the vessel's hull with a number of vertical, rudder like blades projecting from it?

 
 
 
 

75. Which of the following propulsor types represents the proper terminology for a Z- drive?

 
 
 
 

76. Which of the following propulsor types represents the proper terminology for electric propulsion where the drive motors are outside the ship's hull?

 
 
 
 

77. Concerning the operating mechanism of a controllable-pitch propeller, what statement is true?

 
 
 
 

78. Which of the following propulsor types does not require the use of a separate rudder for steerage?

 
 
 
 

79. If a main propulsion shafting arrangement is such that no strut or strut bearing is required, what is an alternative name given to the propeller shaft, which is the section of shafting that the propeller is attached to?

 
 
 
 

80. What statement is true concerning the lubrication of line shaft bearings?

 
 
 
 

81. What statement is true concerning the ability of a line shaft bearing to adapt to shaft misalignment as the ship's hull flexes?

 
 
 
 

82. Which line shaft bearing is most likely to have both upper and lower half bearing shells on merchant ships?

 
 
 
 

83. Concerning the arrangements of a disk-oiled line shaft bearing, what statement is true?

 
 
 
 

84. What statement is true with respect to the back of a propeller blade?

 
 
 
 

85. What is meant by the term "left-handed" propeller?

 
 
 
 

86. What is meant by the term "right-handed" propeller?

 
 
 
 

87. Concerning transverse fixed tunnel thrusters, what statement is true?

 
 
 
 

88. Concerning steerable internal duct thrusters, what statement is true?

 
 
 
 

89. With respect to the vectoring ring of a steerable internal duct thruster, what statement represents the operating principle of the vectoring ring?

 
 
 
 

90. What statement represents the fundamental difference between an azimuthing thruster and a podded propulsor?

 
 
 
 

91. With respect to a "pusher" type azimuthing thruster, what statement is true?

 
 
 
 

92. With respect to a "tractor" type azimuthing thruster, what statement is true?

 
 
 
 

93. By what means is electric current conveyed to the electric drive motor of a podded propulsor?

 
 
 
 

94. What type of propulsor is typically used in electric motor driven, transverse, tunnel bow thrusters to limit the starting current of the single speed drive motor?

 
 
 
 

95. When normal operating pressure is applied to the hydraulic oil in a high-pressure system, the oil __________.

 
 
 
 

96. Purging air from a hydraulic system is necessary when __________.

 
 
 
 

97. New piping and tubing to be installed in a hydraulic system can be safely degreased by using __________.

 
 
 
 

98. In which lubrication application is a detergent type oil most likely to be used?

 
 
 
 

99. What is the operating principle of detergent type lubricating oil that provides the oil with its unique properties?

 
 
 
 

100. With respect to lubricating oils, what statement is true concerning viscosity and viscosity index?

 
 
 
 


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