Why is water prohibited as an extinguishing agent directly on liquid oil pool fires?
Direct Answer
Option B: Water is heavier than oil; oil floats on top and spreads burning liquid over wider area
Water is strictly ineffective on hydrocarbon pool fires because its higher density causes burning oil to float on the surface, rapidly spreading the burning liquid across a wider area rather than smothering the seat of the fire.
All Options
Detailed Explanation & Context
Water is strictly ineffective on hydrocarbon pool fires because its higher density causes burning oil to float on the surface, rapidly spreading the burning liquid across a wider area rather than smothering the seat of the fire.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Oil and Chemical Tanker Cargo Operations (OCTCO/OCTF).
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