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1. How do you operate a portable CO2 fire extinguisher?

 
 
 
 

2. When used to fight fire, carbon dioxide __________.

 
 
 
 

3. After using a CO2 portable extinguisher, it should be __________.

 
 
 
 

4. In weighing CO2 cylinders, they must be recharged if weight loss exceeds __________.

 
 
 
 

5. A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be __________.

 
 
 
 

6. CO2 mainly extinguishes a fire by which of the following?

 
 
 
 

7. A type B-III CO2 extinguisher has a rated capacity of __________.

 
 
 
 

8. You are having a Coast Guard inspection. All carbon dioxide fire extinguishers aboard will be

 
 
 
 

9. Which statement is TRUE concerning carbon dioxide?

 
 
 
 

10. What is NOT a characteristic of carbon dioxide fire-extinguishing agents?

 
 
 
 

11. Which portable fire extinguisher should be used on a class C fire on board a vessel?

 
 
 
 

12. When discharging a portable CO2 fire extinguisher, you should NOT hold the horn of the extinguisher because the horn

 
 
 
 

13. When fighting a fire on a bulkhead using a portable carbon dioxide extinguisher, the stream should be directed at the __________.

 
 
 
 

14. Carbon dioxide as a fire fighting agent has which advantage over other agents?

 
 
 
 

15. The extinguishing agent most likely to allow reignition of a fire is __________.

 
 
 
 

16. Why is carbon dioxide (CO2) better than dry chemical for fighting a class "C" fire?

 
 
 
 

17. CO2 cylinders must be recharged when the weight of the charge in the cylinder is less than what percent of the stamped full weight of the charge?

 
 
 
 

18. Which portable fire extinguisher is normally recharged in a shore facility?

 
 
 
 

19. In continuous operation, the effective range of the 15 pound CO2 extinguisher is limited to __________.

 
 
 
 

20. To operate a portable CO2 extinguisher continuously in the discharge mode

 
 
 
 

21. Weight is considered during the periodic required inspection and servicing of

 
 
 
 

22. Dry chemical extinguishers extinguish class B fires to the greatest extent by

 
 
 
 

23. Which statement concerning the application of dry chemical powder is FALSE?

 
 
 
 

24. When dry chemical extinguishers are used to put out class B fires, there is a danger of reflash because dry chemical_________.

 
 
 
 

25. Dry chemical fire extinguishers are effective on which type(s) of fire?

 
 
 
 

26. An "ABC" dry chemical fire extinguisher would be LEAST effective against a fire in

 
 
 
 

27. Which action is routinely performed at the annual servicing and inspection of a dry- chemical cartridge-operated portable fire extinguisher?

 
 
 
 

28. When must a dry chemical fire extinguisher be recharged?

 
 
 
 

29. Which advantage does dry chemical have over carbon dioxide (CO2) in firefighting?

 
 
 
 

30. In addition to weighing the cartridge, which other maintenance is required for a cartridge-operated dry chemical extinguisher?

 
 
 
 

31. What is an advantage of a dry chemical extinguisher as compared to a carbon dioxide extinguisher?

 
 
 
 

32. The most effective extinguishing action of dry chemical is __________.

 
 
 
 

33. Which statement(s) is(are) TRUE concerning the use of dry chemical extinguishers?

 
 
 
 

34. You are fighting a class "B" fire with a portable dry chemical extinguisher. The discharge should be directed __________.

 
 
 
 

35. As compared to carbon dioxide, dry chemical has which advantage?

 
 
 
 

36. Which statement describes the primary process by which fires are extinguished by dry chemical?

 
 
 
 

37. An advantage of an ABC dry chemical over a carbon dioxide extinguisher is

 
 
 
 

38. When electrical equipment is involved in a fire, the stream of dry chemicals should be __________.

 
 
 
 

39. You are fighting a class "B" fire with a portable dry chemical extinguisher. The discharge should be directed __________.

 
 
 
 

40. An advantage of a dry chemical over a carbon dioxide fire extinguisher is its

 
 
 
 

41. One disadvantage of using regular dry chemical (sodium bicarbonate) in firefighting is that __________.

 
 
 
 

42. Dry chemical extinguishers may be used on what class of fires?

 
 
 
 

43. Recharging a previously used cartridge-operated dry-chemical extinguisher is accomplished by __________.

 
 
 
 

44. A portable dry chemical fire extinguisher discharges by __________.

 
 
 
 

45. A stored-pressure water extinguisher is most effective against fires of class __________.

 
 
 
 

46. Which extinguishing agent is most effective on a mattress fire?

 
 
 
 

47. Which type of portable fire extinguishers is NOT designed for use on flammable liquid fires?

 
 
 
 

48. The gross weight of a fully charged CO2 cylinder is 80 lbs. When the bottle is empty it weighs 60 lbs. What is the minimum acceptable gross weight of the CO2 bottle before it should be recharged by the manufacturer?

 
 
 
 

49. Fixed CO2 systems would not be used on crew's quarters or __________.

 
 
 
 

50. CO2 cylinders forming part of a fixed fire extinguishing system must be pressure tested at least every __________.

 
 
 
 

51. Fixed carbon dioxide extinguishing systems, for machinery spaces that are normally manned, are actuated by one control to open the stop valve in the line leading to the space, and __________.

 
 
 
 

52. In a fixed carbon dioxide extinguishing system for a machinery space, designed WITH a stop valve in the line leading to the protected space, the flow of CO2 is established by actuating __________.

 
 
 
 

53. Which of the following statements is true concerning the control activators, i.e., pull-handles, push-buttons or levers, for a space protected by a CO2 fixed fire extinguishing system?

 
 
 
 

54. A fixed carbon dioxide extinguishing system for a machinery space, designed WITHOUT a stop valve in the line leading to the protected space, is actuated by __________.

 
 
 
 

55. The carbon dioxide cylinders of a fixed fire extinguishing system may be located inside the protected space, if the quantity of CO2 required to protect that space is not more than __________.

 
 
 
 

56. In a fixed CO2 fire extinguishing system where pressure from pilot cylinders is used to release the CO2 from the main bank of cylinders, the number of required pilot cylinders shall be at least __________.

 
 
 
 

57. When pilot cylinder pressure is used as a means to release the CO2 from a fixed fire extinguishing system consisting of four storage cylinders, the number of pilot cylinders shall be at least __________.

 
 
 
 

58. In a fixed CO2 extinguishing system where provision is made for the release of CO2 by operation of a remote control, provision shall also be made for releasing the CO2 __________.

 
 
 
 

59. Which of the following statements is FALSE, concerning the regulations pertaining to the cylinder room of a fixed CO2 fire extinguishing system?

 
 
 
 

60. A crew member reports that the high-pressure alarm light of a low-pressure CO2 fixed fire extinguishing system is illuminated. The most probable cause of this condition would be that __________.

 
 
 
 

61. What would be a major consequence of the refrigeration system for a low-pressure CO2 fixed fire extinguishing system remaining inoperable

 
 
 
 

62. When a ship's low-pressure CO2 fixed fire extinguishing system is activated from a remote location, what determines the quantity of CO2 being released into a selected space?

 
 
 
 

63. The normal designed CO2 storage tank temperature and pressure associated with a ship's low-pressure CO2 fixed fire extinguishing system is approximately __________.

 
 
 
 

64. Actuating the CO2 fixed system causes the shutdown of the __________.

 
 
 
 

65. The space containing carbon dioxide cylinders shall be properly ventilated and designed to prevent an ambient temperature in excess of __________.

 
 
 
 

66. As an extinguishing agent, foam __________.

 
 
 
 

67. Why should foam be banked off a bulkhead when extinguishing an oil fire?

 
 
 
 

68. Which statement is TRUE concerning the application of foam on an oil fire?

 
 
 
 

69. The BEST method of applying foam to a fire is to __________.

 
 
 
 

70. Portable foam fire-extinguishers are designed for use on class __________.

 
 
 
 

71. Why is spare fire hose rolled for storage?

 
 
 
 

72. The canvas covering of fire hose is called the __________.

 
 
 
 

73. When joining the female coupling of the fire hose to the male outlet of the hydrant, you should make sure that the __________.

 
 
 
 

74. To remedy a leaking fire hose connection at the hydrant, secure the valve and __________.

 
 
 
 

75. No outlet on a fire hydrant may point above the horizontal in order to __________.

 
 
 
 

76. A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in __________.

 
 
 
 

77. Foam extinguishes a fire mainly by __________.

 
 
 
 

78. How does foam extinguish an oil fire?

 
 
 
 

79. Firefighting foam is only effective when the foam __________.

 
 
 
 

80. penetrates to the bottom of the fire

 
 
 
 

81. Which statement is TRUE about fire fighting foam?

 
 
 
 

82. A foam-type portable fire extinguisher would be most useful in combating a fire in __________.

 
 
 
 

83. Portable-foam fire extinguishers are designed for use on what classes of fires?

 
 
 
 

84. Regular foam can be used on all but which flammable liquid?

 
 
 
 

85. Which type of fire is the foam (stored-pressure type) fire extinguisher effective on?

 
 
 
 

86. In the production of chemical foam by a continuous-type generator __________.

 
 
 
 

87. When water pressure of 100 psi is used in conjunction with an inline proportioner for the production of the mechanical foam, a 5-gallon can of liquid foam will last __________.

 
 
 
 

88. Production of mechanical foam by a portable in-line foam proportioner __________.

 
 
 
 

89. Production of mechanical foam by a portable in-line foam proportioner

 
 
 
 

90. Compared to the amount of concentrated foam liquid used, the amount of low expansion mechanical foam produced is ___

 
 
 
 

91. One gallon of low expansion foam solution will produce about __________.

 
 
 
 

92. One gallon of high expansion foam solution will produce __________.

 
 
 
 

93. Your tankship has 40 gallons of 6% foam concentrate aboard. Approximately how much foam solution can be produced from this supply?

 
 
 
 

94. When compared to low-expansion foam, a high-expansion foam will __________.

 
 
 
 

95. When compared to a high-expansion foam, a low-expansion foam will __________.

 
 
 
 

96. When compared to low-expansion foam, a high-expansion foam will __________.

 
 
 
 

97. Extra chemicals for producing chemical foam should be stored __________.

 
 
 
 

98. Foam is a very effective smothering agent and __________.

 
 
 
 

99. One of the limitations of foam as an extinguishing agent is that foam __________.

 
 
 
 

100. Semi-portable extinguishers used on inspected vessels are sizes __________.

 
 
 
 

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