单项选择题
Fire in an engine compartment is best extinguished with carbon dioxide gas (CO2) and by（）.
A.completely closing the compartment
B.closing the compartment except for the ventilators
C.leaving the compartment open to the air
D.increasing the air flow to the compartment by blowers
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相关考题
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单项选择题
Fire extinguishers used on ship’s are numbered by size I through V，with I being（）.
A.used for electrical fires only
B.the smallest
C.the most accessible
D.the most effective -
单项选择题
Fire dampers prevent the spread of fire by（）.
A.convection
B.conduction
C.radiation
D.direct contact -
单项选择题
Fighting a rig fire in the ballast pumproom with hoses would adversely affect the stability of the rig most by（）.
A.increasing the permeability of the pumproom
B.reduction of drill water from the storage tanks
C.a list caused by water filling the compartment
D.a reduced KG caused by water filling the compartment
