单项选择题
At the earliest indication of fire aboard your vessel, you must FIRST（）.
A.locate the fire
B.determine which type of fire is burning
C.sound the alarm
D.fight the fire
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The device used for preventing the passage of flames into enclosed spaces is called a （）.
A.flame relief valve
B.flame stopper
C.safety valve
D.flame arrester -
单项选择题
Your vessel has run aground and upon taking fuel oil tank soundings, you find that a fuel tank level has increasedYou therefore should suspect （）.
A.condensation in the fuel tank
B.a crack in the hull portion of the fuel tank
C.a load of bad fuel
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单项选择题
Following a grounding, you can best determine that a SLACK fuel oil tank has been holed by （）.
A.sounding the tank
B.waiting for the vessel to list
C.examining tank boundaries
D.checking fuel oil strainers
