RAFF Exit Exam • Set 3 Question 21 of 30
On fires involving burning liquids, which of these extinguisher is considered most effective ?
✓
Direct Answer
Option A: Foam
Foam creates a continuous aqueous film over flammable liquid surfaces, sealing fuel vapors from oxygen and providing effective cooling. This dual action complies with FSS Code requirements for combating Class B hydrocarbon fires efficiently.
All Options
A
Foam
(Correct Answer)
B
Dry powder
C
Water
D
CO2
Detailed Explanation & Context
Foam creates a continuous aqueous film over flammable liquid surfaces, sealing fuel vapors from oxygen and providing effective cooling. This dual action complies with FSS Code requirements for combating Class B hydrocarbon fires efficiently.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Advanced Fire Fighting (RAFF).
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