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

USCG Deck General (Set 48)

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Question 1 of 30

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

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30 MCQs

#1 What is the primary hazard of liquefied petroleum gas and liquefied natural gas? #2 Which of the following conditions will cause a combustible gas indicator to become inoperative or give erroneous readings? #3 Before a tank is to be crude oil washed, what position must the oxygen content in the tank must be measured at? #4 Span gas is used for what process? #5 What is span gas is used for aboard liquefied natural gas carriers? #6 The condition of asphyxia arises from which of the following? #7 Compared to air, the weight of liquefied petroleum gas vapors are which of the following? #8 What would likely happen if you were exposed to a 100% methane atmosphere for more than 15 minutes? #9 When providing first aid to a victim of gas poisoning, what is the MOST important symptom to check for? #10 Cryogenic burns can result in frostbite, what is the proper immediate treatment? #11 What is the proper first aid for LPG in the eye? #12 In special cases, the Commandant of the Coast Guard may permit cargo piping to pass through machinery spaces. This is permitted provided that the only cargo carried through such piping is(are) which of the following? #13 Your tank vessel is loaded down to her marks, and you find that she has too much trim by the stern. What action should you take to obtain an even keel and still maintain profitability? #14 46 CFR directs the location of fuel oil sounding tubes and access openings for fuel oil tanks on cargo vessels. Where can the tubes be located? #15 Your tank vessel is loaded down to her marks, and you find that she has too much trim by the stern. Which of the following action would reduce the excessive trim? #16 What are flame screens used for? #17 What is a cofferdam? #18 What type of valve is usually on the discharge side of a cargo pump on a tank vessel? #19 On tankers with manually operated tank valves, which of the following is the type of valve most commonly used? #20 The pipe used to connect two separate piping systems on a tank vessel is known as a __________. #21 Before a tank is to be crude oil washed, the oxygen content in the tank must be measured at a position __________. #22 The normal equipment of every rescue boat shall include __________. #23 Using a safety factor of five, determine the safe working load of a line with a breaking strain of 20,000 pounds. #24 Which type of stopper should be used to stop off wire rope? #25 Which type of ventilation is required for enclosed spaces containing gasoline, machinery, or fuel tanks? (small passenger vessel regulations) #26 To prevent damage by and to storage batteries aboard small passenger vessels they should be located __________. #27 Which knot shown in illustration D030DG below is a French bowline? #28 What is a grapnel? #29 A "skiff hook" is a device used to do which of the following? #30 The life jackets on all vessels shall be __________.

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