Question 29 of 30
What is NOT a characteristic of carbon dioxide fire-extinguishing agents?
A
Effective even if ventilation is not shut down
B
Will not deteriorate in storage
C
Non-corrosive
D
Effective on electrical equipment
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Answer & Explanation
The correct answer is Option A: Effective even if ventilation is not shut down.
Carbon dioxide is not effective if ventilation is not shut down, as its extinguishing action relies on displacing oxygen and cooling. The other listed characteristics—stability, non-corrosiveness, and effectiveness on electrical fires—are indeed advantages of CO2.