Practice question
Under what circumstance MAY a driver use portable fire extinguishers on an EX vehicle carrying Class 1 explosives?
- Only when the cargo is already detonating
- Only for small fires involving the vehicle engine or tires BEFORE the fire reaches the explosive cargo compartment
- For fighting fires in adjacent wooden buildings
- Extinguishers must never be used under any circumstance
Answer: B — Only for small fires involving the vehicle engine or tires BEFORE the fire reaches the explosive cargo compartment
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