Question 243Safety & Environmental - QMED
70% to passPortable Halon extinguishers used on a class "B" fire should be directed _______________.
Ain short, quick bursts
Bat the top of the flames
Cat the base of the fire near the edge
Dtoward the upwind side of the fire
AI Explanation
The correct answer is C) at the base of the fire near the edge. Portable Halon extinguishers are effective on class "B" fires, which involve flammable liquids or gases. To extinguish these types of fires, the extinguisher should be directed at the base of the flames, near the edge of the fire. This allows the Halon agent to smother the fire by depriving it of oxygen and cooling the fuel source. Directing the extinguisher at the top of the flames (option B) or in short, quick bursts (option A) would be less effective, as the Halon needs to reach the base of the fire to properly extinguish it. Directing it toward the upwind side (option D) is also not the correct technique for this type of extinguisher and fire.
Related Questions
Q136:Which of the following methods will reduce the possibility of producing an elect... Q100:A low velocity fog applicator is held in an all-purpose nozzle by a bayonet join... Q128:Progressive flooding in the engine room may be minimized by securing watertight ... Q64:Provided every effort is used to preserve body moisture content by avoiding pers... Q198:A simple precaution to reduce the possibility of accidental fires in the paint l...
Ready to test your knowledge?
Take a Safety & Environmental - QMED Practice ExamOfficial Resources