A.phosgene gas
B.sulfuric acid gas
C.sulfur dioxide gas
D.carbon tetrachloride
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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
A.CCS marine surveyor
B.certified marine chemist
C.port engineer
D.MSA marine inspector
最新試題
Combustible gas indicators operate by drawing an air sample into the instrument（）.
The weight of liquefied petroleum gas vapors as compared to air is（）.
Each inert gas system must be designed to supply the cargo tanks with a gas，or mixture of gasses，that has an oxygen content by volume of（）.
The storage device for nitrogen-pressurized hydraulic fluid，which is used in closing the blowout preventers is called the（）.
Upon release to the atmosphere，LFG readily（）.
Gasoline tanks should be filled（）.
The vapor pressure of a gas is the pressure necessary to keep it in a(n)（）.
The tops of vents from gasoline tanks should terminate（）.
It should be noted（）the use of synthetic mooring ropes able to produce sparks by their manipulation is absolutely forbidden on board petroleum tankers and LPG or LNG carriers，or any vessels carrying inflammable substances.
Which is NOT a safety precaution to be observed during the loading of LFG?（）