Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG Deck General (Set 31)
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Question 1 of 30
Which statement is TRUE concerning deep well self-priming pumps?
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30 MCQs #1 Which statement is TRUE concerning deep well self-priming pumps? #2 Cargo tanks on barges fitted with goose neck vents and flame screens are limited to carrying which grade of cargo? #3 You have completed a crude oil wash. What action should be taken with the oil in the lines running to the washing machines? #4 Which of the following is an example of a example of a grade D product? #5 A tank is loaded with 9,000 barrels of gasoline. The temperature of the product is 80°F (27°C), and it has a coefficient of expansion of .0008. The net amount of cargo loaded is __________. #6 What is the gas above the liquid in an LNG tank? #7 Which cargo grade(s) are permitted by regulations to be carried on a barge in tanks fitted only with gooseneck vents and flame screens? #8 The component in an inert gas system used for cleaning the gas of solid and sulfur combustion products, while simultaneously cooling the inert gas, is called the __________. #9 According to U.S. regulations, how many emergency outfits are required to be carried onboard all tankships over 1,000 gross tons? #10 Your tank vessel is fully loaded to the marks, and you find that she is down slightly by the head. Which of the following choices would be the best action to take to trim the vessel slightly by the stern? #11 Which statement is FALSE concerning precautions during fueling operations? #12 Which method is used to supply inert gas from a flue gas system to the cargo tanks? #13 U.S. regulations require cargo pump rooms, on tank vessels handling grades A, B, or C liquid cargo, shall be equipped with power ventilation of the exhaust type. in what amount of time should the ventilation effect a complete change of air? #14 You are crude oil washing on a tanker with an inert gas system. What percentage of oxygen must the inert gas system produce and deliver to the tanks? #15 A relief valve for a cargo pump is generally installed __________. #16 A tanker is loaded with 8,000 barrels of fuel oil. The temperature of the cargo is 50°F. API gravity is 37°. The volume correction factor (VCF) is .0005. What is the net amount in gallons of cargo loaded? #17 LNG containment insulation performs all of the following functions, except which of the following? #18 When discharging clean ballast prior to entering a loading port, what must you do if it is determined the ballast exceeds 15 parts per million of oil? #19 According to regulations, which grade(s) of cargo may be carried in tanks that are vented only with gooseneck vents and flame screens? #20 The valve on the discharge side of a cargo pump on a tank vessel will usually be a __________. #21 A vessel loads edible oil in a deep tank through a manhole at the mid-length of the tank. In order to fill the tank to maximum capacity, what trim should the vessel have? #22 How is the amount of LFG that may be loaded into a given tank determined? #23 What happens to the volume of flammable and combustible liquids when temperature is increased? #24 Remote controls for quick-closing shut off valves are required in how many location(s)? #25 A tank holds 400 tons of sea water when filled. How many tons of liquid of specific gravity 0.9300 will it hold when filled to 90% capacity? #26 Which statement about entry into a water ballast tank that has been sealed for a long time is TRUE? #27 Which step is NOT generally taken when gas-freeing a tank? #28 What is meant by "thieving" a petroleum cargo? #29 You are in the process of loading 465,000 barrels of cargo oil. At 1030, on 5 November, you gauge the vessel and find that you have loaded 203,000 barrels. At 1200 you find that you have loaded 218,000 barrels. If you continue loading at the same rate, you will finish at approximately __________. #30 Branch venting, from safety relief valves on barges, shall be constructed to discharge gas at what minimum vertical height above the weather deck?
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