In the look-ahead meeting, the constraint is that sealant depth and bond-break control are needed. Which joint accessory should the project team carry?
Correct Answer
D) backer rod
backer rod best matches the stated condition. The other choices are real construction options in the same family, but they fit different field conditions.
Why This Is the Correct Answer
backer rod best matches the stated condition. The other choices are real construction options in the same family, but they fit different field conditions.
Why the Other Options Are Wrong
Option A: sidewall primer only
sidewall primer only belongs to a different file or record trail; it does not prove the sealant joint backing event.
Option B: tooled sealant without backing
tooled sealant without backing belongs to a different file or record trail; it does not prove the sealant joint backing event.
Option C: rigid shim strip
rigid shim strip belongs to a different file or record trail; it does not prove the sealant joint backing event.
Memory Technique
Sealant Joint Backing proof for Foreman Selecting: event, approval, receipt, follow-up.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Joint protection materials; backer rod and sealant installation; verify the construction method, material selection, equipment choice, or work sequence that fits the field condition.
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