What are the most important reasons for using water fog to fight fires?（）
A: Smothers burning surfaces，organically destroys fuel
B: Cools fire and adjacent surfaces，provides protective barrier
C: Reaches areas not protected by steam or CO2 smothering systems
D: Allows fire to be attacked from leeward，saturates liquid surface
A: Smothers burning surfaces，organically destroys fuel
B: Cools fire and adjacent surfaces，provides protective barrier
C: Reaches areas not protected by steam or CO2 smothering systems
D: Allows fire to be attacked from leeward，saturates liquid surface
举一反三
- 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
- Though sea water is the best mode of fighting fire, the main emergency fire fighting system can only be used on fires of ________.
- What are The Five Elements ? A: wood, fire, earth, metal, water B: wind, fire, earth, metal, water C: wood, fire, earth, metal, rice D: wood, fire, earth, ray, water
- 1) What are primary flight control surfaces and what are the secondary control surfaces? (5分） 2) What are their postions? 3) What are their functions?
- (任选一题作答） 1) What is engine flameout? (2分）What are the possible reasons for engine flameout? What will you do if you encounter engine flameout during flight? 2) What is engine fire? (2分）What are the possible reasons for engine fire? What will you do if you encounter engine fire during flight?