RAFF Exit Exam • Set 2 Question 19 of 30

What is the best fire fighting medium on a gas tanker ?

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Direct Answer

Option C: DCP

Dry chemical powder (DCP) is highly effective on Class B (flammable liquids) and Class C (flammable gases) fires, common on gas tankers. It interrupts the chemical reaction of combustion, as detailed in FSS Code guidelines for specialized vessel fire protection.

All Options

A

Water

B

Foam

C

DCP (Correct Answer)

D

Carbon dioxide

Detailed Explanation & Context

Dry chemical powder (DCP) is highly effective on Class B (flammable liquids) and Class C (flammable gases) fires, common on gas tankers. It interrupts the chemical reaction of combustion, as detailed in FSS Code guidelines for specialized vessel fire protection.

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 ?