A long uninterrupted gypsum ceiling omits the control joint shown on the plans. What risk increases?
Correct Answer
C) Random cracking.
Planned control joints help reduce random cracking in long gypsum surfaces.
Why This Is the Correct Answer
Planned control joints help reduce random cracking in long gypsum surfaces.
Why the Other Options Are Wrong
Option A: Listed assembly.
Listed assembly. addresses a neighboring field issue, but not the condition or method control required for drywall control joints.
Option B: Restore clearance and drainage.
Restore clearance and drainage. addresses a neighboring field issue, but not the condition or method control required for drywall control joints.
Option D: Wall backing.
Wall backing. addresses a neighboring field issue, but not the condition or method control required for drywall control joints.
Memory Technique
Planned is the clue; control is the method check for Reviewing Layout.
Reference Hint
Study anchor (closed-book): memorize Drywall control joints from California Building Code, California Code of Regulations Title 24. / Title 24 California Building Code gypsum board application concepts; know the rule or calculation trigger without relying on exam-room lookup.
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