单项选择题
Your vessel is taking on bunkers from a shore side facility, if oil begins flowing from one tank vent, which of the following actions should be taken FIRST?（）
A.Open the intake valve to an adjacent tank
B.Set out drip pans and sawdust and begin to mop up the spill
C.Signal the shore control point to shutdown
D.Close the valve on the tank vent line
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For which of the listed classes of fire combinations would carbon dioxide be most suitable as the extinguishing agent （）.
A.Class "A" and class "B"
B.Class "B" and class "C"
C.Class "A" and class " C"
D.Class "C", class "D", and class "E" -
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Most lifeboats are equipped with （）.
A.unbalanced rudders
B.balanced rudders
C.contraguide rudders
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While reading the station bill, you find "three (3) short blasts on the whistle and three (3) short tings on the general alarm bells," this signal is for （）.
A.abandon ship
B.dismissal from fire and emergency stations
C.fire and emergency
D.man overboard
