Foam extinguishes a fire by
Direct Answer
Option B: Smothering or oxygen exclusion
Foam extinguishes fire primarily by smothering, creating a blanket that separates the fuel from the oxygen in the air. While it also provides some cooling, its main action is oxygen exclusion, making it highly effective on liquid fuel fires, as described in SOLAS Chapter II-2 fire safety regulations.
All Options
Detailed Explanation & Context
Foam extinguishes fire primarily by smothering, creating a blanket that separates the fuel from the oxygen in the air. While it also provides some cooling, its main action is oxygen exclusion, making it highly effective on liquid fuel fires, as described in SOLAS Chapter II-2 fire safety regulations.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Chemical Tanker Cargo Operations (CHEMCO).
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