RAFF Exit Exam • Set 2 Question 25 of 30

Fire fighting with foam is only effective when the foam ____

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Direct Answer

Option D: Completely covers the top of the burning liquid

Foam extinguishes flammable liquid fires by forming a blanket that separates the fuel surface from oxygen. Complete coverage is essential to prevent re-ignition and vapor release, a principle detailed in the FSS Code for foam application.

All Options

Penetrates to the bottom of the fire

Mixes with the burning fuel oil

Is kept saturated with low velocity water fog

Completely covers the top of the burning liquid (Correct Answer)

Detailed Explanation & Context

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

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Q1 CO2 type fire extinguisher can be used in fighting which kind of fire type? Q2 The spreading of fire s a result of heating being carried through a vessel’s ventilation system, is an example of heat transfer by _______ Q3 A fire hose kept in box, should have a wrench and ? Q4 When human body exposed to carbon monoxide, more oxygen goes to blood Q5 As per regulation, how many portable fire extinguishers should be there on board Q6 For B class bulkheads the duration of not exceeding the temperature above 200 degree Celsius in 30 minutes? Q7 Which type of portable fire extinguishers are designed for use on electrical fires? Q8 Fire fighting comprises of what all events onboard? Q9 During an investigation of the fire, what points will be considered Q10 Reason why CO2 type fire extinguishers is preferred over other because ?