A.It increases its volume
B.It reduces its volume
C.It has less product per volume
D.None of the above
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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
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
最新試題
Which is NOT a safety precaution to be observed during the loading of LFG?（）
What normally helps in detecting escaping gas? （）
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 storage device for nitrogen-pressurized hydraulic fluid，which is used in closing the blowout preventers is called the（）.
The vapor pressure of a gas is the pressure necessary to keep it in a(n)（）.
If you have a liquefied flammable gas barge in tow，which is NOT required of you with respect to the barge and its cargo? （）
One of the principal dangers inherent in liquefied petroleum gas is（）.
The shut off valve at the gasoline tank which can be operated from outside the tank space （）.
The weight of liquefied petroleum gas vapors as compared to air is（）.
LFG tank and pipeline maintenance should include（）.