Question 19 of 30
Which statement concerning carbon dioxide is FALSE?
A
It leaves no dynamic residue on machinery components
B
It is safe to use near personnel in a confined space
C
It extinguishes fire by smothering action
D
It can be utilized safely on electrical fires
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Answer & Explanation
The correct answer is Option B: It is safe to use near personnel in a confined space.
While CO2 is effective and safe for electrical fires, it displaces oxygen and can cause asphyxiation. It is NOT safe to use near personnel in a confined space without proper respiratory protection and prior ventilation.