AFF Exit Exam • Set 4 Question 17 of 30
Dry powder fire extinguishers which contain a mixture of graphite and sodium chloride as firefighting agents are generally used to fight which type of fire?
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Direct Answer
Option C: Class D metal fire
Dry powder extinguishers containing graphite and sodium chloride are specifically designed for Class D fires, which involve combustible metals. These agents form a crust, smothering the fire and preventing re-ignition.
All Options
A
Class C electrical fire
B
Class B fuel oil fire
C
Class D metal fire
(Correct Answer)
D
Class A wood fire
Detailed Explanation & Context
Dry powder extinguishers containing graphite and sodium chloride are specifically designed for Class D fires, which involve combustible metals. These agents form a crust, smothering the fire and preventing re-ignition.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Fire Fighting (AFF).
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