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1. Coast Guard Regulations (46 CFR) require that the design pressure of an economizer integral with the boiler and connected to the boiler drum without intervening stop valves shall be at least equal to __________.

 
 
 
 

2. Any abnormal condition or emergency that occurs in the engine room must be reported immediately to the __________.

 
 
 
 

3. Water in the fuel supply to a steaming boiler can be detected by __________.

 
 
 
 

4. How many pinion gears are required in an articulated, double reduction gear set for a cross- compounded turbine?

 
 
 
 

5. Water emulsified in the fuel oil when supplied to a boiler is indicated by the following, except __________.

 
 
 
 

6. Coast Guard Regulations (46 CFR) concerning lubricating oil systems for main propulsion turbines, require __________.

 
 
 
 

7. In a regenerative air heater, air is bypassed around the heater while __________.

 
 
 
 

8. If the fires in a boiler furnace begin sputtering or hissing, you should suspect __________.

 
 
 
 

9. Which of the following statements represents the reason why the Babbitt of a turbine journal bearing is relieved at the point of oil entry along the horizontal joint?

 
 
 
 

10. Stack type air heaters are bypassed when a vessel is in port in order to prevent __________.

 
 
 
 

11. When boiler fires begin sputtering, indicating water in the fuel oil settling tank, you should __________.

 
 
 
 

12. The following information was recorded after a recent L.P. turbine bearing installation. The bearing temperature was logged at the indicated time intervals as: 1200-110

 
 
 
 

13. One function of the air and flue gas bypass dampers installed in regenerative type air heaters is to __________.

 
 
 
 

14. Which of the following statements is not one of Newton's laws?

 
 
 
 

15. A theoretical engine cycle is a process that __________.

 
 
 
 

16. Which of the following best describes Boyle's law?

 
 
 
 

17. A regenerative type air heater should be bypassed at low load in order to __________.

 
 
 
 

18. Except one on the following, Coast Guard Regulations (46 CFR) for boiler safety valves require that __________.

 
 
 
 

19. If the fires in both boilers start to sputter, you should immediately __________.

 
 
 
 

20. Rotating flyweights acting against a spring force makes up a simple type of __________.

 
 
 
 

21. Air for combustion is by-passed around the boiler air heater when the __________.

 
 
 
 

22. If the fires start sputtering while steaming under steady conditions, which of the actions listed should be taken?

 
 
 
 

23. The main throttle valve on a main propulsion turbine admits steam directly into the __________.

 
 
 
 

24. When a vessel is in port, stack type air heaters are bypassed in order to prevent __________.

 
 
 
 

25. According to Coast Guard Regulations (46 CFR), which of the following is classified as a boiler mounting?

 
 
 
 

26. A steam vessel is operating at sea and despite troubleshooting the system by all the vessel's engineers, the transfer of fuel to the settler has not been possible and the settler will be empty in a few minutes. As the watch engineer, your next step should be to __________.

 
 
 
 

27. The downcomer tubes installed in modern water tube boilers would normally be located __________.

 
 
 
 

28. Oil in the contaminated drain inspection tank results from __________.

 
 
 
 

29. If a turbine bearing high temperature alarm sounds, you should immediately __________.

 
 
 
 

30. Accumulation tests are conducted in order todetermine the __________.

 
 
 
 

31. In accordance with Coast Guard Regulations (46 CFR) all fuel oil service piping in the vicinity of the burners must __________.

 
 
 
 

32. Steam drains from the potable water system hot water heater would be collected in the __________.

 
 
 
 

33. Which of the listed conditions would indicate a dirty atomizer sprayer plate?

 
 
 
 

34. Coast Guard Regulations (46 CFR) concerning marine boilers, require the installation of a safety valve on the __________.

 
 
 
 

35. Before blowing tubes in a boiler equipped with steam soot blowers, you should __________.

 
 
 
 

36. An overheated bearing in the main propulsion unit is indicated by __________.

 
 
 
 

37. Rotating flyweights, acting against a spring force, will provide a simple type of __________.

 
 
 
 

38. Before using the steam soot blowers to blow tubes at sea, you should __________.

 
 
 
 

39. In accordance with Coast Guard Regulations (46 CFR), which of the following materials may not be used in short lengths between the fuel oil boiler front header manifold and the atomizer head to provide flexibility?

 
 
 
 

40. Which of the conditions listed can cause the flame of a mechanically atomized burner to be blown away from the burner tip when you are attempting to light off?

 
 
 
 

41. Hot running bearings can be caused by the following, except __________.

 
 
 
 

42. A constant speed hydraulic governor would more than likely be installed on a __________.

 
 
 
 

43. In preparing to blow tubes at sea, you should __________.

 
 
 
 

44. Poor atomization accompanied by an elongated flame from a steam atomization burner is most likely caused by __________.

 
 
 
 

45. An excess pressure governor would normally be used on a __________.

 
 
 
 

46. Boiler forced draft pressure should be increased before blowing tubes to __________.

 
 
 
 

47. According to Coast Guard Regulations (46 CFR), which of the following is permitted in boiler fuel oil service system discharge piping?

 
 
 
 

48. Fluctuations in the atomizing steam pressure at the burners could be caused by a/an __________.

 
 
 
 

49. The constant pressure governor of a turbine-driven feed pump maintains which of the following pressures at a constant value for all capacities?

 
 
 
 

50. After routine blowing of tubes at sea, there should be a decrease in the __________.

 
 
 
 

51. A triple element, main propulsion, boiler feedwater regulating system commonly used aboard ship utilizes __________.

 
 
 
 

52. When slight sputtering is detected at the boiler atomizer, you should __________.

 
 
 
 

53. Guardian valves are installed on main propulsion turbines to __________.

 
 
 
 

54. Which of the listed operational precautions is not necessary before blowing tubes?

 
 
 
 

55. A pneumatic dual element, main propulsion, boiler feedwater regulating system commonly used aboard ship utilizes __________.

 
 
 
 

56. Scavenging air is supplied to steam soot blower elements to __________.

 
 
 
 

57. A single element boiler feedwater regulating system used aboard ship utilizes __________.

 
 
 
 

58. The arc through which a steam soot blower element blows is regulated by the __________.

 
 
 
 

59. Downcomers are installed between the boiler inner and outer casing to __________. I. increase circulation rates II. decrease the amount of heat that they can absorb from the furnace

 
 
 
 

60. When on watch in the engine room, a main turbine bearing high temperature alarm is indicated and remotely displayed as 145 degrees Fahrenheit, you should __________.

 
 
 
 

61. Which of the following types of bearings are used for the reduction gears in a marine steam turbine installation?

 
 
 
 

62. The primary purpose of the boiler internal dry pipe is to __________.

 
 
 
 

63. Carbon deposits in a fuel oil heater are caused by __________.

 
 
 
 

64. Which of the conditions listed is the most common source of torsional vibration in a geared turbine drive?

 
 
 
 

65. The main function of a desuperheater is to __________.

 
 
 
 

66. Carbonization of the conductive surfaces of a fuel oil heater results in reduced heating capacity because __________.

 
 
 
 

67. What should you do if you detect an abnormal vibration in the operating main propulsion turbine?

 
 
 
 

68. One purpose of a desuperheater installed in a boiler steam drum is to __________.

 
 
 
 

69. The overheating of fuel oil in the fuel oil heaters may result in __________.

 
 
 
 

70. The slight wavy appearance of the tips of reduction gear teeth is a result of __________.

 
 
 
 

71. A boiler fitting used to protect the superheater and to provide reduced temperature steam for use by auxiliaries is the __________.

 
 
 
 

72. If the fuel oil temperature in the fuel oil heater attains an excessive temperature, what will happen?

 
 
 
 

73. A pressure drop occurs across both the moving and fixed blades of a reaction turbine as a result of the __________.

 
 
 
 

74. Water-tube boilers having integral uncontrolled superheaters are equipped with internal desuperheaters to __________.

 
 
 
 

75. An internal leak in a fuel oil heater can result in __________.

 
 
 
 

76. The pressure drop existing across the diaphragm of a pressure compounded impulse turbine necessitates __________.

 
 
 
 

77. Under steady steaming conditions, the superheater outlet temperature is regulated by the __________.

 
 
 
 

78. The contaminated steam system is secured for repairs. Live steam is supplied to the fuel oil heating system and its returns are directed to the drain tank. Considering these circumstances, an undetected leak in an idle fuel oil heater could eventually lead to _________.

 
 
 
 

79. Steam leaving the desuperheater is used to __________.

 
 
 
 

80. While making your rounds, you notice the main lube oil temperature to be higher than normal. To remedy this situation, you should __________.

 
 
 
 

81. Shrouding, with regards to steam turbines, is rolled to the curvature of the blade ends and fitted to the blade __________.

 
 
 
 

82. Overheating of the generating tubes will occur when a boiler reaches its end point of __________.

 
 
 
 

83. Which turbine blade is best suited for high pressure installations?

 
 
 
 

84. Which of the following statements about boilers is correct?

 
 
 
 

85. The rate of fouling on the oil side of a fuel oil heater is inversely related to the __________.

 
 
 
 

86. When increasing the firing rate of a boiler, which of the following should be carried out first?

 
 
 
 

87. Which of the items listed is required by Coast Guard Regulations (46 CFR Part 54) to be stamped on a pressure vessel?

 
 
 
 

88. Which of the conditions listed would indicate a dirty fuel oil strainer?

 
 
 
 

89. To safely increase the firing rate of a boiler, you should always increase the forced draft pressure __________.

 
 
 
 

90. If one fuel oil strainer of a duplex unit becomes clogged while the vessel is steaming at sea, the first action should be to __________.

 
 
 
 

91. To safely decrease the boiler firing rate, you should always reduce the fuel pressure __________.

 
 
 
 

92. According to 46 CFR, which of the following statements is true concerning main boiler safety valve escape piping?

 
 
 
 

93. If you noted a large difference in the pressures indicated by a duplex pressure gage to the fuel oil system strainer, you should __________.

 
 
 
 

94. In accordance with Coast Guard Regulations (46 CFR), all vessels having oil fired main propulsion boiler(s) must be equipped with the following, except __________.

 
 
 
 

95. If a fuel oil solenoid valve fails to secure the fuel oil supply to the starboard boiler upon loss of the forced draft air supply, you should immediately __________.

 
 
 
 

96. While maneuvering out of port, you answer a stop bell. You notice a lot of steam coming out of the gland exhaust condenser vent, in addition to the main condenser hot well level being low. For this condition you should __________.

 
 
 
 

97. Coast Guard Regulations (46 CFR) require that quickclosing valves on a fuel oil service system should be installed as close as is practicable to the __________.

 
 
 
 

98. When raising steam on a cold boiler under normal conditions, you should always __________.

 
 
 
 

99. With vacuum up and the main propulsion turbine standing by while awaiting engine orders, it is necessary to roll the unit alternately ahead and astern every five minutes to __________.

 
 
 
 

100. The time taken to raise steam on a cold boiler should always be __________.

 
 
 
 

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