RAFF Exit Exam • Set 1 Question 2 of 30

Which of the following statements describes the advantage of using a Halon fire extinguisher versus a CO fire extinguisher ?

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Direct Answer

Option B: Halon is more effective than CO2

Halon extinguishers are generally more effective than CO2 for a wider range of fires, particularly Class B and C. While both smother, Halon also interrupts the chemical chain reaction of combustion. CO2 is less effective on deep-seated fires and can displace oxygen rapidly. (STCW Table A-VI/3)

All Options

A

Halon cools rather than smothers a fire

B

Halon is more effective than CO2 (Correct Answer)

C

Halon can extinguish combustible metal fires

D

Halon is not toxic and safe to breathe under all conditions

Detailed Explanation & Context

Halon extinguishers are generally more effective than CO2 for a wider range of fires, particularly Class B and C. While both smother, Halon also interrupts the chemical chain reaction of combustion. CO2 is less effective on deep-seated fires and can displace oxygen rapidly. (STCW Table A-VI/3)

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Advanced Fire Fighting (RAFF).

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