NFPA 10 specifies a maximum travel distance of 75 feet for extinguishers in which type of structure?

NFPA 10 specifies a maximum travel distance of 75 feet for extinguishers in which type of structure?

• A. Class A structures
• B. Class B structures
• C. Industrial facilities
• D. All occupancies

Answer: (A)

NFPA 10 sets how far you can be from a portable extinguisher so you can reach it quickly in a live-fire situation. For environments with ordinary combustibles such as wood, paper, textiles, and similar materials (Class A occupancies), the standard requires that no point be more than 75 feet away from an extinguisher. This distance is measured along the actual path you would take to reach the extinguisher, taking into account walls, doors, and other obstacles. Why this fits Class A structures is that these hazards burn relatively predictably and are common in many buildings, so a 75-foot travel distance provides reliable access without needing extinguishers every few rooms. In contrast, spaces dealing with higher-risk liquids or other conditions often have shorter required travel distances because the fuel source can spread more rapidly or present greater spread risk, so the 75-foot rule does not apply universally. Industrial facilities aren’t defined as a single occupancy with this 75-foot rule, and saying all occupancies would be inaccurate. So, the choice reflecting Class A structures aligns with NFPA 10’s travel-distance guidelines for ordinary combustible hazards.

NFPA 10 sets how far you can be from a portable extinguisher so you can reach it quickly in a live-fire situation. For environments with ordinary combustibles such as wood, paper, textiles, and similar materials (Class A occupancies), the standard requires that no point be more than 75 feet away from an extinguisher. This distance is measured along the actual path you would take to reach the extinguisher, taking into account walls, doors, and other obstacles.

Why this fits Class A structures is that these hazards burn relatively predictably and are common in many buildings, so a 75-foot travel distance provides reliable access without needing extinguishers every few rooms. In contrast, spaces dealing with higher-risk liquids or other conditions often have shorter required travel distances because the fuel source can spread more rapidly or present greater spread risk, so the 75-foot rule does not apply universally. Industrial facilities aren’t defined as a single occupancy with this 75-foot rule, and saying all occupancies would be inaccurate.

So, the choice reflecting Class A structures aligns with NFPA 10’s travel-distance guidelines for ordinary combustible hazards.