Finish TradesQuestion 258 of 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
Explanation
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.
Law Reference: 2025 CA Building Code §716Practice all 700 questions free — no signup required.
Related questions on this topic
- Glazing that is adjacent to a door and within a certain arc of the closed door edge generally must be safety glazing. That arc is measured within a ____ radius of the door in the closed position and up to 60 inches above the floor.
- Glazing used in a guard or railing where people could fall against it must be:
- How can an installer verify that an installed pane is tempered (safety) glass?
- For an accessible door, operable hardware (lever, pull, or loop) must be usable without tight grasping, pinching, or twisting of the wrist, and mounted between about 34 and 48 inches above the floor. Which hardware BEST meets this?
- At an accessible door threshold, the maximum height for a new threshold is generally:
- Under the California Energy Code prescriptive requirements, residential windows must not exceed a maximum U-factor. A lower U-factor and a low SHGC together mean the window:
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against California CSLB General Building (B) Trade Examination · How we review