AL Concrete Pavement Practice Questions - Alabama Concrete Pavement Contractor Examination Exam

For flexible PVC water main, which bedding practice best protects the pipe and maintains long-term ovality control?

Lay the pipe directly on undisturbed rock ledge with no cushion Provide uniform, compacted granular bedding and haunching to the springline Backfill only over the crown and leave the invert unsupported Use large cobbles under the invert for drainage

Correct Answer:

Provide uniform, compacted granular bedding and haunching to the springline

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