A penetration through a rated gypsum wall is patched with ordinary joint compound only. What must be maintained?
Correct Answer
C) Rated assembly.
A rated wall penetration must be repaired or firestopped so the approved rated assembly is maintained.
Why This Is the Correct Answer
A rated wall penetration must be repaired or firestopped so the approved rated assembly is maintained.
Why the Other Options Are Wrong
Option A: Site dryness.
Site dryness. may relate to another site control, but it does not remove or guard the rated finish assemblies exposure being tested.
Option B: Smooth transition.
Smooth transition. may relate to another site control, but it does not remove or guard the rated finish assemblies exposure being tested.
Option D: Solid anchorage.
Solid anchorage. may relate to another site control, but it does not remove or guard the rated finish assemblies exposure being tested.
Memory Technique
the controlling choice lock for Checking Corridor: wall is the harm, penetration is the guard.
Reference Hint
Study anchor (closed-book): memorize Rated finish assemblies from California Building Code, California Code of Regulations Title 24. / Title 24 California Building Code fire-resistance-rated construction and penetrations; know the rule or calculation trigger without relying on exam-room lookup.
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