Each explosive-laden vehicle used for transport must have at least ___ portable extinguishers?

• A. 1
• B. 2
• C. 3
• D. 4

Answer: (B)

Having two portable fire extinguishers on every explosive-laden transport vehicle ensures immediate, accessible fire suppression with redundancy. In transit, a fire can start anywhere near the loads or in equipment, and conditions can change quickly. If only one extinguisher is carried, it may be hard to reach, blocked by the cargo, or could fail to operate when needed. A second extinguisher provides a backup option and increases the chance that a small fire can be controlled before it escalates.

Positioning and readiness matter: one extinguisher should be readily reachable from the cab and another from the cargo area, so responders can act quickly regardless of where the fire originates or which end of the vehicle is accessible during movement. The extinguishers should be appropriate for the hazards present (fire type and potential fuel sources). The minimum requirement is two to ensure effective initial response and redundancy, though larger loads or higher risk situations might justify more.