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1. Your ship has loaded 20,000 barrels of crude oil, departing Valdez, Alaska for San Francisco. When loaded the cargo temperature was 96°F. API was 15°. The volume correction factor (VCF) is .0004. If the cargo temperature is expected to be 56°F at the discharge port, how many gallons will be offloaded?

 
 

2. Your ship has loaded 22,000 barrels of crude oil, departing Valdez, Alaska for Panama. When loaded the cargo temperature was 90°F. API was 15°. The volume correction factor (VCF) is .0004. If the cargo temperature is expected to be 100°F at the discharge port, how many barrels will be offloaded?

 
 

3. Your ship has loaded 22,000 barrels of crude oil, departing Valdez, Alaska for Panama. When loaded the cargo temperature was 90°F. API was 15°. The volume correction factor (VCF) is .0004. If the cargo temperature is expected to be 100°F at the discharge port, how many gallons will be offloaded?

 
 

4. A cargo of fuel oil is loaded whose temperature is 66°F. API gravity is 36°. The volume correction factor (VCF) is .0005. A cargo temperature of 80°F is expected at the discharge port. If 9,000 barrels were loaded, how many barrels would you expect to unload?

 
 

5. A centrifugal ballast pump has a capacity of 200 gpm. If suction is taken on a ballast tank containing 200 long tons of seawater, how much water will be remain in the tank after discharging for one hour?

 
 

6. Where are ullages measured from?

 
 

7. The main function of a stripping system is to __________.

 
 

8. If two centrifugal pumps, driven by two independent electric motors, operating at unequal speeds are discharging an inflammable liquid through a common discharge line, the higher speed pump may cause the slower pump to do which of the following?

 
 

9. Which characteristic is an advantage of a butterfly valve as compared to a gate valve?

 
 

10. What is the purpose of a check valve?

 
 

11. What type of valve will usually be on the discharge side of a cargo pump on a tank vessel?

 
 

12. The high-level overfill tank alarm, installed in the on-board monitoring system, must __________.

 
 

13. The deck water seal of the inert gas system __________.

 
 

14. Which action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?

 
 

15. How does an inert gas system on a tanker function to prevent explosions in cargo tanks?

 
 

16. Liquefied flammable gas is defined as any flammable gas having a Reid vapor pressure exceeding how many pounds?

 
 

17. The primary hazard of liquefied petroleum gas and liquefied natural gas is __________.

 
 

18. Upon release to the atmosphere, LFG readily __________.

 
 

19. What is the most common liquified gas cargo?

 
 

20. At what maximum gas concentration must the fixed gas detection system on a LNG ship activate an audible and visual alarm?

 
 

21. What is one of the principal dangers inherent in liquefied petroleum gas?

 
 

22. What is the Inert gas plant on an LNG vessel designed to produce?

 
 

23. A combustible liquid with a flash point of 90°F would be grade __________.

 
 

24. A flammable liquid having a Reid vapor pressure of 8½ P.S.I.A. or less and a flash point of 80°F or below is grade __________.

 
 

25. When referring to quantity of barite in a P-tank, ullage is the __________.

 
 

26. Which factor must be considered when determining the order of loading of dissimilar products through the same piping system aboard a tanker?

 
 

27. Some cargoes can react with air to form unstable oxygen compounds which could cause them to do which ofthe following?

 
 

28. You are on a tankship discharging oil. When all of the oil that the main cargo pumps can handle is pumped out of a tank, the remainder is __________.

 
 

29. Your tank vessel is fully loaded, and you find that she is down slightly by the head. To adjust the trim, you may __________.

 
 

30. The term "load on top" is used on many crude oil carriers, what is this a method for?

 
 

31. Your vessel is taking on cargo oil when a small leak develops in the hose. You order the pumping stopped. Before you resume pumping, you should __________.

 
 

32. When carrying a cargo of asphalt or molten sulfur, which are carried at temperatures of over 300°F, one of the biggest dangers is __________.

 
 

33. Which of the following describes (auto) ignition temperature?

 
 

34. When two ballast pumps used for deballasting a single tank start cavitating, what action should you take?

 
 

35. While loading bulk liquid cargo, a tank valve jams open, what is the first action you should take?

 
 

36. Which of the following is equivalent to a "barrel", which is a unit of liquid measure?

 
 

37. What is NOT a precaution to be taken when topping off?

 
 

38. How should pinching of the cargo hose between the vessel and the dock be prevented?

 
 

39. When loading bulk liquid cargo, what is the FIRST action you should take if a cargo valve jammed open?

 
 

40. Which of the following procedures would insure proper seating of the valve when closing?

 
 

41. Oil product samples should be taken at the commencement and completion of loading operations. As the Person in Charge, where should the the final samples be taken?

 
 

42. Which of the following would be classified as grade "C" petroleum product?

 
 

43. What is the primary hazard of liquefied petroleum gas and liquefied natural gas?

 
 

44. What is Reid Vapor Pressure?

 
 

45. What grade are most crude oils are classified as?

 
 

46. What is the lowest temperature at which a liquid will give off sufficient vapors to form a flammable mixture with air?

 
 

47. Under which of the following conditions will the blowers of an inert gas generation system aboard a tanker remain operational?

 
 

48. In an inert gas system, high pressure alarms are set in the main vapor collection line to cause an audible and visual alarm if the pressure reaches a certain level. What is the percentage of the lowest relief valve setting at which the alarm must sound?

 
 

49. On modern tankers with separate pumprooms, which of the following is used to minimize cargo pump shaft leakage?

 
 

50. When securing a hook to the end of a wire rope you should use __________.

 
 

51. If given equal care, nylon line should last how many times longer than manila line?

 
 

52. What is meant by the term "two-blocked"?

 
 

53. Which is normally used to hold wire rope for splicing?

 
 

54. What is the knot used to join two lines or two large hawsers for towing called?

 
 

55. To coil a right-laid rope, you should coil the line in __________

 
 

56. A block that can be opened at the hook or shackle end to receive a bight of the line is a __________.

 
 

57. A natural fiber rope can be ruined by dampness because it may __________.

 
 

58. The knot used to form the bridle at the standing part of a gantline rigged to a stage is a __________

 
 

59. In order to help protect a natural fiber rope from rotting, the line must be __________.

 
 

60. Using a safety factor of 6, determine the safe working load of manila line with a breaking stress of 8 tons.

 
 

61. Which of the following describes a "whipping"?

 
 

62. The "lay" of a line refers to __________.

 
 

63. A long splice in a line __________.

 
 

64. The critical point in nylon line elongation is about __________.

 
 

65. During the manufacture of line, yarns are twisted together in the __________.

 
 

66. Compared to manila line, size for size, nylon line __________.

 
 

67. What is a "carrick bend" is used for?

 
 

68. What is a serving mallet is used for?

 
 

69. You are preparing to lubricate standing rigging on your vessel. When rigging a bosun's chair on a stay with a shackle, __________

 
 

70. Which line cannot be spliced?

 
 

71. What is the breaking strain of steel wire rope with a 5/8" diameter?

 
 

72. A wire rope rove through two single blocks with two parts at the moving block is used for a boat fall. The weight of the 100-person boat is 5 tons. Compute the required breaking strain. Safety Factor - 6, weight per person - 165 lbs., 10% friction per sheave (2 sheaves).

 
 

73. Which of the following is a rope ladder with wooden rungs?

 
 

74. After having been pulled aloft in a bosun's chair on a mast, you must now make yourself fast in the chair prior to painting the mast. You should first __________.

 
 

75. When rigging a bosun's chair, a tail block or lizard is used to __________.

 
 

76. When rigging a stage, the standing part should be fastened to the horns of a stage with which of the following hitches?

 
 

77. When lowering manropes alongside a stage rigged over the side of a vessel, they should be allowed to trail in the water __________.

 
 

78. Which statement about two lines spliced together is TRUE?

 
 

79. Which of the following is a knot used to join two lines of different diameters?

 
 

80. Which knot reduces the strength of a line by the LEAST amount?

 
 

81. What is a "bowline" used for?

 
 

82. Which weakens a line the LEAST?

 
 

83. Which of the following should splices made in nylon be?

 
 

84. Which kind of hitch should you use to secure a spar?

 
 

85. Which of the following describes the flash point temperature of a liquid?

 
 

86. Which of the terms best describes the process of the production of vapor above the surface of a boiling cargo due to evaporation on an LNG tanker?

 
 

87. You are in the process of loading 465,000 barrels of cargo oil. At 1030, on 5 November, you gauge the vessel and find that you have loaded 203,000 barrels. At 1200 you find that you have loaded 218,000 barrels. If you continue loading at the same rate, you will finish at approximately __________.

 
 

88. A tanker is loaded with 8,000 barrels of fuel oil. The temperature of the cargo is 50°F. API gravity is 37°. The volume correction factor (VCF) is .0005. What is the net amount in barrels of cargo loaded?

 
 

89. The vapor pressure of a gas is defined as the pressure necessary to keep it in what state?

 
 

90. When stripping a tank, excessive air in the suction line may cause __________.

 
 

91. Your ship has loaded 9,000 barrels of fuel oil at a cargo temperature of 35°C (95° F). API gravity is 44°. The volume correction factor (VCF) is .0005. You are bound to New Jersey from Venezuela. How many barrels would you expect to unload if the cargo temperature is 55°F at the discharge port?

 
 

92. What is the major function of the deck water seal in an inert gas system?

 
 

93. Your ship has loaded 9,000 barrels of fuel oil at a cargo temperature of 35°C (95°F). API gravity is 44°. The volume correction factor (VCF) is .0005. You are bound for New Jersey from Venezuela. How many gallons would you expect to unload if the cargo temperature is 55°F at the discharge port?

 
 

94. When loading a petroleum cargo which is below average ambient temperatures, You must do which of the following?

 
 

95. To insure proper seating when closing a valve on a tank, the valve should be __________.

 
 

96. The amount of LFG that may be loaded into a given tank is determined by __________.

 
 

97. What is meant by "thieving" a petroleum cargo?

 
 

98. An inert gas system installed on a tanker is designed to __________.

 
 

99. Which type of power may a towing vessel use to drive the cargo pumps of a tank barge?

 
 

100. What type of liquid is used in the liquid P/V breaker?

 
 

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