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

USCG Deck General (Set 41)

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Question 1 of 30

What do gas compressors on an LNG vessels provide the motive force to do?

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30 MCQs

#1 What do gas compressors on an LNG vessels provide the motive force to do? #2 What is the term used for evaporated LNG? #3 What is one of the principal dangers inherent in liquefied petroleum gas? #4 What is the LNG cargo term "rollover" used to describe? #5 What is generally, the first action in extinguishing an LFG fire caused by escaping gas? #6 What is the preferable way to extinguish an LNG fire? #7 Which is NOT a safety precaution to be observed during the loading of LFG? #8 What device will be activated while loading a LNG tank and the HI-HI liquid level set point is reached? #9 What is one major advantage of transporting gas under refrigeration? #10 What is the Inert gas plant on an LNG vessel designed to produce? #11 Which product is most likely to accumulate static electricity? #12 Flammable liquid means any liquid which gives off flammable vapors at or below __________. #13 Combustible liquids are divided into how many grades? #14 Combustible liquid is defined as any liquid having a flash point above __________. #15 A combustible liquid with a flash point of 90°F would be grade __________. #16 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 __________. #17 Grade E combustible liquids have a flash point of __________. #18 Butadiene, inhibited, is labeled as a __________. #19 The vapor pressure of a substance __________. #20 When referring to quantity of barite in a P-tank, ullage is the __________. #21 Which of the following reacts dangerously with vinyl chloride? #22 You have orders to load cargoes of carbon disulfide, diisopropylamine and pyridine on your multi-product tankship. Which statement is TRUE? #23 What is the flash point of vinyl chloride? #24 Which factor must be considered when determining the order of loading of dissimilar products through the same piping system aboard a tanker? #25 What is the temperature at which a vapor mixture, at a given pressure, begins to condense? #26 Which of the following describes the relationship between the vapor pressure of a substance and temperature? #27 What is the general name given to propane, butane, and mixtures of the two? #28 Which of the following describes one of the principle dangers inherent in liquified petroleum gas? #29 The terminal indicates to you that they are going to use a booster pump to assist the discharging operation. You start the discharge, and in a few minutes the pressure drops sharply. This could be a result of the __________. #30 While discharging a tanker, list can be controlled by __________.

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