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单选题
What method of extinguishing fire in a hatch is the best to minimize damages to the cargoes?（）.
A
Foam
B
CO2
C
Water
D
All of the above
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contaminating food with extinguishing agentB
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单选题At night while the ship is tied up to the dock，a fire breaks out in a cargo hatch. After sounding the alarm，what should the person on watch do?（）A
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Await further orders from the MasterC
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单选题The basic training in fire prevention and fire fighting should include the theoretical elements which should cover （）.A
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classification of flies and applicable extinguishing agentsD
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单选题What is an advantage of using foam in fire fighting?（）A
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单选题What is best suited for fighting a fire in a ballast control room?（）A
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SandC
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多选题On what conditions may an exemption certificate，exempting from the requirement to install a fixed fire extinguishing system in a cargo space，be issued？（）AThe ship is constructed and solely intended for carriage of ore， coal， grain， unseasoned timber， non-combustible cargoes or cargoes which according to the Administration constitute a low fire riskBSteel hatch covers and effective means of closing all ventilators and other openings to the cargo space are fittedCA fixed deck foam system is be fitted in lieu of the cargo space extinguishing systemDThe vessel is less than 10 000 gross tonnage
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The Dangers of a Fire.B
The Cause of a Fire.C
Learn to Use a Fire Extinguisher.D
Be Ready for a Fire.
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单选题Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.A
sweep flames away with water sprayB
shut off the leakC
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