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
您可能感興趣的試卷
你可能感興趣的試題
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
A.5% or less
B.10% or less
C.15% or less
D.20% or less
最新試題
Gasoline tanks should be filled（）.
Before starting a gasoline engine on a motorboat，you should make sure for safety that（）.
When fueling has been completed（）.
The amount of LFG that may be loaded into a given tank is determined by（）.
What will NOT increase friction of a liquid flowing in a pipe and cause a loss of suction head?（）.
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.
The vapor pressure of a gas is the pressure necessary to keep it in a(n)（）.
Compared to the amount of concentrated foam liquid used，the amount of low expansion mechanical foam produced is（）.
What is used to test a tank for oxygen content?（）
If you have a liquefied flammable gas barge in tow，which is NOT required of you with respect to the barge and its cargo? （）