单项选择题
When you hear three short blasts on the ships whistle and the same signal on the general alarm bells, you （）.
A.are required to go to your life-raft
B.are dismissed from drills
C.should point to the man overboard
D.should start the fire pump
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The spreading of fire as a result of heat being carried through a vessels ventilation system, is an example of heat transfer by （）.
A.conduction
B.convection
C.radiation
D.windage -
单项选择题
Combustible material stored in a compartment adjacent to a compartment where there is a fire may be ignitedThis ignition can occur by （）.
A.heat convection through the adjacent bulkheads
B.combustion gases carried through the ventilation system
C.direct convection of the heat emitted by the adjacent fire
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单项选择题
The rate of expansion of heated fuel oil varies with the （）.
A.conductivity
B.viscosity
C.volume
D.specific gravity
