Which statement is a fire safety guideline?

• A. Never prop open emergency doors. Fire doors keep fire from spreading.
• B. Do not obstruct fire doors and shutters.
• C. Keep a proper clearance available below sprinkler heads at all times.
• D. Be wise about the use of electrical cords.

Answer: (A)

Maintaining intact fire barriers and clear egress paths is essential for effective fire safety. Fire doors are designed to resist heat and smoke and to compartmentalize a building during a fire, slowing spread and preserving escape routes. If an emergency door is propped open, that barrier is no longer effective, letting flames and smoke travel between areas and shortening the time occupants have to evacuate. Door closers and the intended automatic sealing behind people rely on the door being kept shut, so this rule directly protects lives by preserving the containment that gives people a chance to get out safely and helps responders control the fire.

Other practices support safety as well—keeping doors and shutters unobstructed ensures the barriers can close properly, maintaining sprinkler clearance helps sprinklers function, and using electrical cords safely reduces ignition risk. But the action that most directly preserves containment and life safety in a fire is never leaving emergency doors propped open.