AFF Exit Exam • Set 1 Question 19 of 30

Which firefighting agent is commonly used to suppress fires involving flammable metals?

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Direct Answer

Option B: Dry powder

Dry powder extinguishers (Class D) are specifically designed for fires involving combustible metals like magnesium, titanium, or sodium. These specialized powders smother the fire and form a crust that excludes oxygen, effectively suppressing these unique and intense fires.

All Options

A

Foam

B

Dry powder (Correct Answer)

C

Water

D

CO2 (Carbon Dioxide)

Detailed Explanation & Context

Dry powder extinguishers (Class D) are specifically designed for fires involving combustible metals like magnesium, titanium, or sodium. These specialized powders smother the fire and form a crust that excludes oxygen, effectively suppressing these unique and intense fires.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Fire Fighting (AFF).

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Q1 What is the primary purpose of boundary cooling during a fire on a ship? Q2 In advanced firefighting, what is the purpose of using a Class A foam? Q3 During a firefighting operation, what does the term "smoke curtain" refer to? Q4 Which firefighting equipment is specifically designed for use in confined spaces onboard a ship? Q5 What is the primary purpose of the International Shore Connection (ISC) on a ship? Q6 In advanced firefighting, what is the purpose of using a water fog nozzle? Q7 What is the role of a fire blanket in firefighting? Q8 In the context of firefighting, what does the acronym PASS stand for? Q9 What is the purpose of a fire screen in advanced firefighting? Q10 When using a fire hose, what is the recommended nozzle pattern for initial cooling of a fire in a confined space?