Carbon dioxide的中文含义是（）。
- A碳氢化合物
- B碳氧化合物
- C一氧化碳
- D二氧化碳
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1、When used to fight fire，carbon dioxide
When used to fight fire，carbon dioxide（）.Ais effective if used promptly on an oil fireBhas a greater cooling effect than waterCis lighter than airDis harmless to cargo and crew
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2、Controls for a fixed carbon dioxide sy
Controls for a fixed carbon dioxide system shall be mounted（）.Adirectly outside the space protected by the systemBas near the gas cylinders as possibleCin the pilothouseDon the main deck near the bow
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3、A carbon dioxide fire extinguisher has
A carbon dioxide fire extinguisher has been partially discharged, and should be immediately （）.Atagged and restowed properly in its rackBweighed...
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4、As compared to carbon dioxide，dry chem
As compared to carbon dioxide，dry chemical has which advantage?（）ACleanerBEffective on metal firesCGreater rangeDMore cooling effect
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5、Carbon dioxide flooding system is used
Carbon dioxide flooding system is used for extinguishing fires because it reduces the concentration of oxygen in the air to（）.Aflashing pointBcombustion pointCauto-ignition pointDlower explosive limit
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6、Carbon dioxide as a fire fighting agen
Carbon dioxide as a fire fighting agent has which advantage over other agents? （）AIt causes minimal damageBIt is safer for personnelCIt is cheaperDIt is most effective on a per unit basi