A.in the ends of each tank
B.in the expansion trunk of each tank
C.above the weather deck
D.there are no requirements in the regulation
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A.phosgene gas
B.sulfuric acid gas
C.sulfur dioxide gas
D.carbon tetrachloride
A.5 times the maximum working pressure on the hose during cargo transfer
B.one half the designed working pressure
C.4 times the pressure of the cargo pump used for transferring
D.5 times the minimum working pressure on the hose during cargo transfer
A.keel
B.center of buoyancy
C.tipping center
D.amidships section
A.keeps sparks from falling into an open tank
B.secures covers on ullage openings
C.prevents sparks from getting out of an engine's exhaust system
D.grounds static electricity
A.after the discharge valve
B.between the pump and discharge valve
C.after the suction valve
D.between the pump and suction valve
最新試題
Which is NOT a safety precaution to be observed during the loading of LFG?（）
Storage batteries should be charged in a well ventilated area because（）.
The primary hazard of liquefied petroleum gas and liquefied natural gas is（）.
Upon release to the atmosphere，LFG readily（）.
Butadiene，inhibited，is labeled as a（）.
Each ship having an inert gas system must have a portable instruments to measure concentrations of hydrocarbon vapor in inert atmospheres and also to measure（）.
The amount of LFG that may be loaded into a given tank is determined by（）.
The weight of liquefied petroleum gas vapors as compared to air is（）.
The vapor pressure of a substance（）.
Gasoline vapor tends to collect（）.