completely closing the compartment
closing the compartment except for the ventilators
leaving the compartment open to the air
increasing the air flow to the compartment by blowers
第1题：
A fire of escaping liquefied flammable gas is best extinguished by ______.
A.cooling the gas below the ignition point
B.cutting off the supply of oxygen
C.stopping the flow of gas
D.interrupting the chain reaction
第2题：
An engine compartment gasoline fire requires which type of extinguisher?______.
A.Carbon dioxide
B.Dry chemical
C.Foam
D.All of the above
第3题：
After a fire has been extinguished in a closed space, personnel may safely enter the space when
A.smoke density has been decreased sufficiently to see the bulkhead opposite the compartment's entrance
B.a lifeline and explosion proof flash light are used
C.all smoke and toxic fumes are removed and an adequate oxygen supply is present
D.overhaul has been completed to remove any possible source of re-ignition
第4题：
It is effective in controlling fire in flowing oil such as coming from a broken fuel line
It absorbs heat from materials that could cause reignition
Most foams can be used jointly with dry chemical extinguishing agents to attack a fire by two methods of extinguishment
Once the surface is blanketed with foam and the fire is extinguished，no further foam is required
第5题：
utilizing carbon dioxide or dry chemical fire extinguishers
utilizing soda and acid fire extinguishers
blowing the flames out
letting it burn itself out
第6题：
A galley grease fire on the stove may be extinguished using______．
A.water
B.foam
C.the range hood extinguishing system
D.fire dampers
第7题：
cooling the gas below the ignition point
cutting off the supply of oxygen
stopping the flow of gas
interrupting the chain reaction
第8题：
材料：
Condor a catamaran vessel operating between the Channel Islands and France．The vessel has two main engines in each hull．All propulsion units are duplicated，with each set independent from the other．
Shortly after leaving St Helier，Jersey，with 31 passengers and 18 crew，the fire alarm sounded indicating a fire in the starboard engine room．This was confirmed by the closed circuit television surveillance system which showed flames in the vicinity of the starboard outer main engine．The vessel was immediately stopped，all machinery in the starboard engine room was stopped and the fuel supplies shut down．Jersey Radio was informed of the situation two minutes after the alarm sounded. After closing all ventilation openings and accounting for all personnel，halon fire smothering gas was released into the starboard engine room．This was done five minutes after the fire alarm first sounded. The crew maintained boundary cooling and intermittently operated the sprinkler system to the affected space．
Twenty minutes after the alarm sounded the situation was considered to be under control．Using the port main engines the vessel returned to St Helier where assistance was available from shore based emergency services．
问题：
Condor has two ________ main engines．
A.combined
B.independent
C.couple
D.double
The fire accident happened in ________．A.both the engine rooms
B.neither engine rooms
C.the port engine room
D.the starboard engine room
The fire was mainly extinguished with ________．A.water
B.chemical agent
C.foam
D.powder
It can be concluded that ________．A.no officials from any authority know the accident after it happened
B.some officials ashore must have learnt the accident at very beginning
C.there must be casualties even they were not mentioned in the report
D.fire is not dangerous on board vessel
请帮忙给出每个问题的正确答案和分析，谢谢！
第9题：
Slow down the spread of fire by cooling adjacent structures
Cover the fire with foam
Smother the fire with a blanket or similar object
Break up solid objects to ensure that any deep seated fires are extinguished
第10题：
when using an indirect attack on the fire such as flooding with water
to prevent the gases of combustion from surrounding the firefighters
to minimize heat buildup in adjacent compartments
if compressed gas cylinders are stowed in the compartment on fire