If heavy smoke is coming from the paint locker,the first firefighting response should be to（）.
A: release the CO fiooding system
B: open the door to evaluate of the fire
C: enter and use a portable extinguisher
D: secure the ventilatio
A: release the CO fiooding system
B: open the door to evaluate of the fire
C: enter and use a portable extinguisher
D: secure the ventilatio
举一反三
- In order to discharge a CO2 portable fire extinguisher, the operator must FIRST ______.
- 138． After using a C0 portable extinguisher，it should be ______.
- The spread of fire is NOT prevented by（）. A: shutting off the oxygen supply B: cooling surfaces adjacent to the fire C: removing combustibles from the endangered area D: removing smoke and toxic gases by ensuring adequate ventilatio
- If smoke is heavy in the corridor, you are advised to ________. A: open the door at once B: stay in your area C: lie on the floor D: run downstairs
- Firefighting experts agree that the first six minutes of a fire are the most important （）saving lives and getting the fire under control. A: due to B: in terms of C: in spite of D: regardless of