A concealed chase connects two floor levels and the attic without blocking at floor lines. What is missing?
Correct Answer
C) Fireblocking.
Fireblocking is used to limit hidden fire spread through concealed vertical spaces.
Why This Is the Correct Answer
Fireblocking is used to limit hidden fire spread through concealed vertical spaces.
Why the Other Options Are Wrong
Option A: Approved equivalent.
Approved equivalent. may relate to another site control, but it does not remove or guard the the hazard control exposure being tested.
Option B: Bearing support.
Bearing support. may relate to another site control, but it does not remove or guard the the hazard control exposure being tested.
Option D: Boundary blocking.
Boundary blocking. may relate to another site control, but it does not remove or guard the the hazard control exposure being tested.
Memory Technique
If Checking Framing can still reach the worker, the control is decoration.
Reference Hint
Study anchor (closed-book): memorize cited field requirement from California Residential Code, California Code of Regulations Title 24. / Title 24 California Residential Code cited field requirement concepts; know the rule or calculation trigger without relying on exam-room lookup.
More Class B Trade Questions
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