AFF Exit Exam • Set 7 Question 20 of 30
Which firefighting agent is most effective in removing heat?
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Direct Answer
Option D: Water spray
Water spray, including water fog, is the most effective firefighting agent for removing heat from a fire. Its high latent heat of vaporization allows it to absorb a significant amount of thermal energy as it turns into steam.
All Options
A
Carbon dioxide vapor stream
B
Dry chemical powder blanket throw
C
Mechanical structural foam solution
D
Water spray
(Correct Answer)
Detailed Explanation & Context
Water spray, including water fog, is the most effective firefighting agent for removing heat from a fire. Its high latent heat of vaporization allows it to absorb a significant amount of thermal energy as it turns into steam.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Fire Fighting (AFF).
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