A.that
B.which
C.who
D.these
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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
A.nitrogen
B.oxygen
C.carbon dioxide
D.water vapor
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（）.
What is used to test a tank for oxygen content?（）
Gasoline tanks should be filled（）.
The storage device for nitrogen-pressurized hydraulic fluid，which is used in closing the blowout preventers is called the（）.
The airborne concentrations of substances (such as H2S) under which nearly all workers may be repeatedly exposed without adverse effects are called（）.
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.
When fueling has been completed（）.
Storage batteries should be charged in a well ventilated area because（）.
Butadiene，inhibited，is labeled as a（）.