What term describes a curtain-like barrier designed to confine smoke and heat at the ceiling level?

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Multiple Choice

What term describes a curtain-like barrier designed to confine smoke and heat at the ceiling level?

Explanation:
A curtain-like barrier installed at the ceiling level to confine smoke and heat is a draft curtain (also called curtain board). This barrier slows the horizontal spread of hot gases and smoke between compartments by creating a controlled separation at the top of openings, taking advantage of smoke’s tendency to rise and travel along the ceiling. The goal is to keep smoke out of adjacent spaces and protect escape routes and stairs while suppression or evacuation proceeds. This is distinct from a fire door, which is a solid, opening component designed to resist heat and maintain closed separation when shut. It’s also not describing stages of fire growth like incipient or smoldering.

A curtain-like barrier installed at the ceiling level to confine smoke and heat is a draft curtain (also called curtain board). This barrier slows the horizontal spread of hot gases and smoke between compartments by creating a controlled separation at the top of openings, taking advantage of smoke’s tendency to rise and travel along the ceiling. The goal is to keep smoke out of adjacent spaces and protect escape routes and stairs while suppression or evacuation proceeds. This is distinct from a fire door, which is a solid, opening component designed to resist heat and maintain closed separation when shut. It’s also not describing stages of fire growth like incipient or smoldering.

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