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

USCG Engineering Safety & Environmental Protection (Set 10)

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Question 1 of 30

If an incorrect entry were made in the Oil Record Book, you should __________.

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30 MCQs

#1 If an incorrect entry were made in the Oil Record Book, you should __________. #2 Which of the following operations aboard a tanker must be recorded in the Oil Record Book on a tank-to-tank basis according to Coast Guard Regulations? #3 A gurgling noise is heard from within a cargo tank when discharging cargo, this would indicate that the __________. #4 Pressure-vacuum relief valves, as used on tank vessels, are usually set to operate at two points, __________. #5 Which of the following pressures represents the normal pressure setting of a pressure-vacuum relief valve as normally found on tank vessels? #6 A Crude Oil Wash (COW) system is considered as __________. #7 In order for you to operate your vessel's crude oil wash system, the cargo tanks to be washed must be __________. #8 Both crude oil washing and water washing use direct impingement to remove residue from tanks. Crude oil washing has an additional advantage, in utilizing __________. #9 Bottom mounted crude oil washing machines are primarily used for _________. #10 When tanks have been washed with crude oil, and ballasted without being water rinsed, the ballast is referred to as _________. #11 Crude oil washing has which of the following disadvantages? #12 To avoid excessive electrostatic effect in the crude oil washing process, due to the presence of water in the crude oil washing fluid, the contents of any tank to be used as a source of crude oil for washing must first reduce a portion of the tank contents by a vertical height equal to __________. #13 When the inert gas system is temporarily unable to maintain a positive pressure, or an oxygen content less than 8%, cargo operations should _________. #14 The blowers of an inert gas generation system aboard a tanker, will be automatically secured if __________. #15 How does an inert gas system on a tanker function to prevent explosions in cargo tanks? #16 Each inert gas system must be equipped with the following instruments: oxygen concentration indicator and recorder, pressure indicator and recorder, and temperature indicator. The point of measurement for these instruments must be located __________. #17 Excessive recirculation of inert gas is _________. #18 When securing the operation of an inert gas system, the final step should be _________. #19 "Portable" oil tank cleaning machines are usually provided with a water supply from the __________. #20 An electrically "charged mist" will be found in a __________. #21 When using portable tank cleaning machines, the hoses may be disconnected when __________. #22 When water washing epoxy-coated cargo tanks, the temperature and pressure of the wash water should generally not exceed __________. #23 Reserve buoyancy is the __________. #24 In the absence of external forces, the center of gravity of a floating vessel is located directly above the __________. #25 Stability is determined principally by the relationship of the center of gravity and the __________. #26 Clogged limber holes can endanger a ship's stability by __________. #27 Static water pressure on the hull of a ship is greatest at the __________. #28 The weight of the liquid displaced by a vessel floating in sea water is equal to the __________. #29 The distance between the bottom of the hull and the waterline is called __________. #30 After transferring a weight forward on a vessel, the draft at the center of flotation will __________.

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