MS Heavy Construction Practice Questions - Mississippi Heavy Construction Contractor Examination Exam

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After a reinforced-concrete pipe or box culvert with lifting holes is set to line and grade, the lifting holes should be:

Plugged and sealed according to the manufacturer before backfill Left open so groundwater can drain from the barrel Used as grout ports for the entire remaining run Covered only with a piece of polyethylene film

Correct Answer:

Plugged and sealed according to the manufacturer before backfill

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