The oil in a cargo winch gear box should be sampled periodically to ().
A、prevent the gear box from leaking
B、prevent the oil from becoming inflammable
C、make sure it has not become contaminated
D、make sure the motor bearings are lubricated
A、prevent the gear box from leaking
B、prevent the oil from becoming inflammable
C、make sure it has not become contaminated
D、make sure the motor bearings are lubricated
A、reducing the erosion of the cargo tanks B、increasing the total quantity of oil to carry C、reducing the quantity of water contained in oil D、reducing cargo discharged time
A、Any internal transfer of oil cargo during a voyage B、The discharge overboard in port or at sea of any bilge water accumulated in machinery spaces C、The loading or unloading of any or all oil cargo D、All of the above
A、Any internal transfer of oil cargo during a voyage B、The discharge overboard in port or at sea of any bilge water accumulated in machinery spaces C、The loading or unloading of any or all oil cargo D、All of the above
A、cargo loading operations B、cargo unloading operations C、cargo control operations in the transport D、crude oil washing
A、A.calculating the ullage in the cargo tanks B、B.loading ballast by gravity C、C.the loading of new cargo into the slop tank as a procedure to minimize pollution D、D.calculating the ratio of cargo expansion in a cargo tank
A、the oil content in water B、the water content in fuel oil C、the water level in bilge well D、the oil level in bilge well
A、the oil content in water B、the water content in fuel oil C、the water level in bilge well D、the oil level in bilge well