AFF Exit Exam • Set 7 Question 25 of 30
Which statement is true concerning the use of dry chemical extinguishers?
✓
Direct Answer
Option A: You should direct the spray at the base of the fire
When using dry chemical extinguishers, the spray should always be directed at the base of the fire. This action smothers the fire by interrupting the chemical chain reaction and forming a barrier.
All Options
A
You should direct the spray at the base of the fire
(Correct Answer)
B
They are deployed safely on metal fires like sodium or magnesium
C
You should direct the spray at the top edges of structural smoke screens
D
They provide deep cooling to prevent any risk of re-ignition
Detailed Explanation & Context
When using dry chemical extinguishers, the spray should always be directed at the base of the fire. This action smothers the fire by interrupting the chemical chain reaction and forming a barrier.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Fire Fighting (AFF).
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