A.exclusion of all sand and solid matter
B.cleaning with clean fresh or sea water
C.examination for fractures and pitting
D.All of the above
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A.that
B.which
C.who
D.these
A.Make periodic inspections of bilges
B.Keep the barge under constant surveillance
C.Have a properly certificated tankerman or at least one licensed officer on board the towing vessel
D.Verify ullage readings
A.above the floor plates of the bilges
B.above the carburetor level
C.at the lowest point of the bilge areas
D.at no particular level
A.to the top to expel all vapors from the tanks
B.to the top so the operator is certain how much fuel he has aboard
C.with only sufficient fuel for the planned trip so excess gasoline is not carried
D.to near the top with some space allowed for gasoline expansion
A.settle near the bottom of the bilge
B.settle near the top of the bilge
C.settle evenly throughout all levels of the bilge by mixing with air
D.disperse to atmosphere
最新試題
To determine the pressure and temperature limitations under which LFG is required to be transported on a barge，you should look at the（）.
The primary hazard of liquefied petroleum gas and liquefied natural gas is（）.
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（）.
Butadiene，inhibited，is labeled as a（）.
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（）.
Where is thicker plating usually found in the construction of integral tanks on a ship? （）
One of the principal dangers inherent in liquefied petroleum gas is（）.
What normally helps in detecting escaping gas? （）
Where should the tops of vents from gasoline tanks terminate?（）.