Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR

USCG Engineering Safety & Environmental Protection (Set 18)

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Question 1 of 30

Drawings of your ship indicate the use of "B" class bulkheads. The "B" indicates which of the following?

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30 MCQs

#1 Drawings of your ship indicate the use of "B" class bulkheads. The "B" indicates which of the following? #2 One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space is __________. #3 When an oil fire has been extinguished, the surface of the oil should be kept covered with foam to prevent __________. #4 The most common cooling agent used for fighting fires on tank vessels is __________. #5 Which extinguishing agent is the best for use on electrical fires? #6 Which portable fire extinguisher is normally recharged in a shore facility? #7 During an inspection of a ships storeroom, you find sealed containers of chemicals labeled "potassium bicarbonate" and "potassium chloride". These chemicals are most commonly used aboard ship for _______. #8 To activate a foam type portable fire extinguisher, you must __________. #9 The passive safety device installed on each Halon fire extinguishing cylinder, to prevent its over pressurization is called a __________. #10 Which of the listed characteristics applies to a semi-portable CO2 system? #11 Properly stowed fire hose is either faked or rolled into a rack with the __________. #12 There is always a lower water pressure at the fire hose outlet than is found at the discharge of the pump. Which of the following reasons is the common cause of this loss in pressure? #13 The physical difference of the water spray patterns developed by the high velocity tip and low velocity applicator is due to __________. #14 Water applied as a 'fog' can be more effective than water applied as a 'solid stream', because __________. #15 Actuating the fixed CO2 system should cause the automatic shutdown of the __________. #16 The primary function of an automatic sprinkler system is to __________. #17 In discussing with a new junior officer the provisions aboard the vessel for shore side firefighters to connect into the vessel's fire main, what item should be included in the discussion? #18 You are the engineer on a vessel of more than 1600 gross tons with a periodically unattended machinery space. A fire has been reported in the engine room and you cannot make entry into the space. How would you direct the Emergency Squad Team Leader to charge the fire main? #19 While in the engine control room you smell smoke and see it coming from the vent in the main switchboard panel. Which of the many different types of extinguishers, if any, are required to be in that space and why would it be best suited to extinguish this class of fire? #20 An oil fire is reported in the purifier room bilge. How would you combat this fire? #21 When combating a major electrical fire at sea, the main consideration is __________. #22 If a fire occurs in an electric cable, in which the inner layers of insulation, or the insulation covered by armor is burning, you should __________. #23 In fighting a fire in a fuel tank, the FIRST action you should attempt is to __________. #24 The longer an oil fire is permitted to burn, the __________. #25 As an engineer on a tanker of more than 1600 gross tons on an international voyage, how would you direct the fire team to combat a large cargo space fire? #26 When fighting a liquefied natural gas fire, you should __________. #27 One of the main concerns when fighting a galley fire is __________. #28 In the event of an exhaust duct fire, most dry chemical and carbon dioxide galley range fixed extinguishing systems are automatically activated through the action of a stainless steel cable, spring and a __________. #29 As First Engineer you are the senior engineering officer in Emergency Squad #1. The fire alarm sounds and you report to the muster station where the Bridge informs you smoke has been reported coming from the ship's laundry room. What should your first action be? #30 The explosive range of methane is 5% to 15% by volume in air. This means a vapor/air mixture of __________.

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