AFF Exit Exam • Set 3 Question 3 of 30

The FIRST course of action in fighting a fire in a cargo or fuel oil tank is to:

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Direct Answer

Option D: Secure all openings to the tank

Securing all openings to a cargo or fuel oil tank immediately cuts off the oxygen supply, a critical element for combustion. This primary action helps to contain the fire, reduces its intensity, and prepares the space for the safe and effective application of fixed extinguishing systems.

All Options

A

Direct a fire hose into the tank and energize the fire main

B

Spray the tank boundaries with a fire hose to promote cooling

C

Discharge an initial charge of CO2 with a hand portable extinguisher

D

Secure all openings to the tank (Correct Answer)

Detailed Explanation & Context

Securing all openings to a cargo or fuel oil tank immediately cuts off the oxygen supply, a critical element for combustion. This primary action helps to contain the fire, reduces its intensity, and prepares the space for the safe and effective application of fixed extinguishing systems.

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

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