Question 16 of 30
Large volumes of carbon dioxide are safe and effective for fighting fires in enclosed spaces, such as in a pumproom, provided that the:
A
ventilation system is kept operating
B
ventilation system is secured and all persons leave the space
C
persons in the space wear damp cloths over their mouths and nostrils
D
persons in the space wear gas masks
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Answer & Explanation
The correct answer is Option B: ventilation system is secured and all persons leave the space.
For effective CO2 fire suppression in enclosed spaces like pumprooms, the ventilation system must be secured to maintain the required concentration of CO2. This also necessitates ensuring all personnel have evacuated the space prior to discharge.