AFF Exit Exam • Set 3 Question 30 of 30

Which advantage does dry chemical have over carbon dioxide (CO2) in firefighting?

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Direct Answer

Option A: More protective against re-flash

Dry chemical agents offer a greater advantage over CO2 in preventing re-flash because they form a crust on the burning material, effectively isolating it from oxygen. CO2 primarily works by diluting oxygen and cooling.

All Options

More protective against re-flash (Correct Answer)

Compatible with all foam agents

Cleaner

All of the above

Detailed Explanation & Context

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

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