AFF Exit Exam • Set 4 Question 24 of 30

If there has been a fire in a closed, unventilated compartment, it may be unsafe to enter because of:

✓

Direct Answer

Option C: lack of oxygen

Fires consume oxygen for combustion. In a closed compartment, the oxygen level will significantly decrease, creating an atmosphere with insufficient oxygen to support human life. Therefore, entering such a compartment without self-contained breathing apparatus (SCBA) is extremely hazardous due to potential asphyxiation.

All Options

A

High accumulations of nitrogen gas

B

Excess relative humidity

C

lack of oxygen (Correct Answer)

D

Built-up electrostatic charges

Detailed Explanation & Context

Fires consume oxygen for combustion. In a closed compartment, the oxygen level will significantly decrease, creating an atmosphere with insufficient oxygen to support human life. Therefore, entering such a compartment without self-contained breathing apparatus (SCBA) is extremely hazardous due to potential asphyxiation.

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

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