单项选择题
A.spilling B.leaking C.dumping D.All of the above
To prevent the spread of fire by convection you should ...
单项选择题To prevent the spread of fire by convection you should （）.
A.remove combustibiles from direct exposure B.cool the bulkhead around the fire C.close all openings to the area D.shut off electrical power
When welding or burning aboard a vessel, you must be ce...
单项选择题When welding or burning aboard a vessel, you must be certain that the space （）.
A.is properly vented B.contains no explosive fumes C.has no oil in the bilges D.all of the above
The most likely place for a fire to start through the p...
单项选择题The most likely place for a fire to start through the process of spontaneous combustion is in （）.
A.an electrical switchboard B.the pressure tanks C.the fuel oil tanks D.the oily rag bin
