A.cools the inert gas and prevents soot from entering the cargo tanks
B.acts as an emergency system shutdown when the inlet pressures exceed the safe working pressure in the hazardous zone
C.prevents the backflow of hydrocarbon gasses into nonhazardous areas
D.relieves sudden large overpressures in the system
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A.green
B.red
C.white
D.yellow
A.two years
B.three years
C.four years
D.five years
A.annually by the owner，with a letter submitted six months before expiration
B.only once every five years，with a letter submitted six months before expiration
C.and the entire plan resubmitted for approval once every five years，six months before expiration
D.annually by the owner，with a letter submitted to the Coast Guard within one month of the anniversary date of the plan approval
A.opening dead spaces to check for heat or fire
B.evacuation of the vessel
C.sounding the "all clear" signal
D.operation of the emergency generator
A.day
B.week
C.month
D.year
最新試題
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On offshore drilling units，emergency lighting and each emergency power system must be tested at least once a（）.
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During the towing of a survival craft，a lookout should be on station to（）.
After an explosion，repair of emergency machinery and services should be accomplished（）.
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Thirty-five percent of the breaking strength of an anchor cable is generally accepted as the（）.
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