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

USCG Deck General (Set 47)

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Question 1 of 30

Which of the following choices does not depict the tank inerting process on a tank vessel?

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30 MCQs

#1 Which of the following choices does not depict the tank inerting process on a tank vessel? #2 Under which of the following conditions will the blowers of an inert gas generation system aboard a tanker remain operational? #3 The cargo pump relief valve is usually piped to which of the following components? #4 What is the required gas supply capacity of an inert gas system? #5 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? #6 If the inert gas system was not in operation while loading crude oil on a tank vessel, what action would you take? #7 Which of the following conditions will result in an automatic shut down of the flue gas inert gas system? #8 On a tanker vessel, what is the required combined capacity of the inert gas generating system as compared to the total capacity of all the cargo pumps which can be operated simultaneously? #9 What is the maximum allowable oxygen content within the ships cargo tanks, inert gas piping and the vapor recovery system? #10 How is an inert gas system designed to reduce the possibility of tank explosions? #11 What do the emergency shutdown requirements of U.S. regulations apply to? #12 Which alarm is NOT found on an inert gas system? #13 How does an inert gas system on a tanker function to prevent explosions in cargo tanks? #14 Which is NOT a safety precaution to be observed during the loading of Liquefied Gas? #15 What is the preferable way to extinguish an Liquefied Gas fire? #16 What is generally, the first action in extinguishing an Liquefied Gas fire caused by escaping gas? #17 In order to reduce the accumulation of static electricity while loading petroleum products, you should __________. #18 Where is the most likely location for a cargo fire to occur on a tanker? #19 What is the primary function of a flame screen on a tank vessel? #20 Which of the following is the primary function of the screens that are fitted to the Fuel oil tank vents? #21 Protective clothing must be worn while sampling hazardous cargo on a tankship. This clothing includes which of the following at a minimum? #22 What are the flammable limits for motor gasoline? #23 With reference to Liquefied Gas operations, what does the term "rollover" used to describe? #24 What are the primary concern(s) for safely transporting and handling Liquefied Gas? #25 Which of the following actions is not considered to have the potential for generating static electricity? #26 What is the minimum temperature required to ignite gas or vapor without a spark or flame being present called? #27 Where would be the most likely location for a liquid cargo fire to occur on a tanker? #28 Which of the following is the chief source of spontaneous combustion aboard tankers? #29 U.S. regulations require that tank vessels handling grade B liquids shall have their cargo pumps separated from all sources of vapor ignition by which of the following? #30 What is the best method for extinguishing a fire of escaping liquefied flammable gas?

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