When are stair doors allowed to be locked on the stair side?

Prepare for the Minneapolis Fire Department SOP Test. Use flashcards and multiple choice questions with hints and explanations for each question. Ensure you're ready for success!

The scenario involving stair doors being locked on the stair side hinges on ensuring safety and accessibility during emergencies, such as a fire. The correct answer reflects a specific condition under which locking stair doors are permissible while maintaining compliance with safety protocols.

When stair doors unlock but do not unlatch upon loss of power to the locking device, they provide a form of security while ensuring that individuals can still access the stairwell in an emergency. This design prevents doors from inadvertently remaining closed and inaccessible due to power failure, which is crucial for ensuring safe egress.

Ensuring that doors remain unlocked, even if they do not fully open, is a safety measure that supports the principles of egress and life safety. This option highlights the importance of a balance between security and immediate access during emergencies, which is paramount in fire department operations and protocols.

In contrast, the other options suggest conditions under which stair doors could be locked that may not align with life safety standards during emergencies, where accessibility is critical. Such scenarios could potentially impede evacuation and pose risks during a fire or other urgent situations. Thus, the requirement provides a safeguard to ensure both security when necessary and the ability for safe evacuation at all times.

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