Question 852Deck Safety70% to pass
You are fighting a class "B" fire with a portable dry chemical extinguisher. The discharge should be directed _______________.
AI Explanation
The correct answer is B) at the seat of the fire, starting at the near edge.
The reasoning behind this is that for a class "B" fire (involving flammable liquids or gases), the goal is to cut off the fuel supply and extinguish the fire at its source. Directing the dry chemical discharge at the seat of the fire, starting from the near edge, will allow the chemical agent to smother the flames and prevent the fire from spreading.
The other options are not as effective for a class "B" fire. Directing the discharge over the top (A) or at the main body of the fire (C) may not reach the actual seat of the fire. Bouncing the discharge off a bulkhead (D) could disperse the agent in an uncontrolled manner.
Related Questions
#850 An advantage of an ABC dry chemical over a carbon dioxide extinguisher is _______________.#851 When electrical equipment is involved in a fire, the stream of dry chemicals should be _______________.#853 An advantage of a dry chemical over a carbon dioxide fire extinguisher is its _______________.#854 One disadvantage of using regular dry chemical (sodium bicarbonate) in firefighting is that _______________.#855 Dry chemical extinguishers may be used on what class of fires?