Question 233Safety & Environmental - QMED
70% to passWhich of the following statements is true concerning the Halon 1301 fire extinguishing agent?
AThe agent is less effective than carbon dioxide.
BThe agent is highly toxic as stored in pressurized cylinders.
CThe agent cannot be used on electrical fires because it leaves a residue.
DHalon extinguishes the fire by a chain breaking reaction.
AI Explanation
The correct answer is D) Halon 1301 extinguishes the fire by a chain breaking reaction. Halon 1301 is an effective fire extinguishing agent that works by interrupting the chemical chain reaction of the fire. It does this by releasing bromine atoms that disrupt the combustion process, effectively extinguishing the fire. This chain breaking mechanism makes Halon 1301 highly effective, especially on electrical fires, as it does not leave any conductive residue. The other answer choices are incorrect. Halon 1301 is more effective than carbon dioxide, it is not highly toxic when stored in pressurized cylinders, and it can be used on electrical fires without leaving a residue.
Related Questions
Q50:A specific document which identifies a chemical, and lists its physical properti... Q84:You have found a person laying prone and not breathing. An electric wire is touc... Q140:Which of the listed classes of fire would most likely occur in the engine room o... Q138:A class "B" fire develops on the weather deck amidships of moored tank vessel. T... Q25:When a helicopter is lifting personnel from an enclosed lifeboat, the other indi...
Ready to test your knowledge?
Take a Safety & Environmental - QMED Practice ExamOfficial Resources