Finish TradesCâu 258 / 700
A fire-rated door assembly in a rated wall relies on several features to perform. Which is essential for the assembly to keep its rating in a fire?
a.The door may be blocked open for convenience
b.The door needs no latch as long as it is heavy
c.The door must be self-closing (or automatic-closing) and positively latch
d.Any field-cut glazing size is allowed
Giải thích
A fire door must close and latch on its own so it actually seals the opening during a fire; a blocked-open or unlatched door defeats the rating, and vision panels are limited to tested/listed sizes. Weight is not a substitute for latching, and glazing cannot be enlarged beyond the listing.
Trích dẫn luật: 2025 CA Building Code §716Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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