A.CO2
B.Foam
C.Dry Chemical
D.Water
您可能感興趣的試卷
你可能感興趣的試題
A.Dry chemicals
B.CO2
C.Foam
D.All the above
A.Water
B.Sand
C.CO2
D.Dry chemical
A.Leaves a residue
B.Cost，relative to other agents
C.Breaks down while under prolonged storage
D.Conducts electricity
A.Electrically non-conductive
B.Relatively inexpensive
C.Effective against chemicals containing an oxidizer
D.All of the above
A.Insure the chemical is powdery
B.Replace the cartridge
C.Pressure test the discharge hose
D.Test the pressure gauge for proper operation
最新試題
Where should life jackets be stowed?（）.
Which firefighting method is an example of an indirect attack on a fire?（）.
When used to fight fire，carbon dioxide（）.
Which action is routinely performed at the annual servicing and inspection of a dry-chemical cartridge-operated portable fire extinguisher?（）
Which extinguishing agent is recommended in the Chemical Data Guide for use on a carbon disulfide fire?（）
Which precaution should be taken when testing a line throwing gun?（）
Which item is NOT included in the fireman’s outfit on a cargo vessel?（）
Which extinguishing agent is best for use on a magnesium fire?（）
Which is a disadvantage of Halon as a fire extinguishing medium?（）
When using carbon dioxide to fight a fire on a bulkhead，the CO2 should be applied（）.