Refresher Exit Exam • Set 2 Question 9 of 30

To prevent the spread of fire by convection you should:

✓

Direct Answer

Option B: Close all openings to the area

Convection spreads fire via the movement of hot gases. Closing all openings (like fire doors and dampers) restricts the flow of these gases, containing the fire.

All Options

Cool the bulkhead around the fire

Close all openings to the area (Correct Answer)

Remove combustibles from direct exposure

Shut off all electrical power

Detailed Explanation & Context

Convection spreads fire via the movement of hot gases. Closing all openings (like fire doors and dampers) restricts the flow of these gases, containing the fire.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Course for STCW Modular Courses (Refresher).

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Q1 Which of the listed classes of fire is considered as one involving electrical equipment? Q2 Which of the following would be considered a Class “B” fire? Q3 If ignited, which material would be a class B fire? Q4 Which of the listed extinguishing agents is NOT suitable for fighting a liquid paint fire? Q5 Which extinguishing agent is most effective on a mattress fire? Q6 You are fighting a fire in a watertight compartment using hoses and river water. Stability may be reduced because of: Q7 When used to fight fire, carbon dioxide: Q8 Carbon dioxide as a firefighting agent has which advantage over other agents? Q9 To prevent the spread of fire by convection you should: Q10 What is NOT a characteristic of carbon dioxide fire-extinguishing agents?