Refresher Exit Exam • Set 3 Question 20 of 30
Foam tends to extinguish fire by
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Direct Answer
Option D: Smothering the burning material
Foam extinguishes fires primarily by creating a coherent blanket that 'smothers' the fire, cutting off the supply of oxygen to the burning liquid surface and preventing flammable vapors from escaping.
All Options
A
Releasing large amount of CO2
B
Chemically absorbing oxygen
C
None of the above
D
Smothering the burning material
(Correct Answer)
Detailed Explanation & Context
Foam extinguishes fires primarily by creating a coherent blanket that 'smothers' the fire, cutting off the supply of oxygen to the burning liquid surface and preventing flammable vapors from escaping.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Course for STCW Modular Courses (Refresher).
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