AL Water Projects Practice Questions - Alabama Water Projects Contractor Examination Exam

A crew sets PVC water pipe so each bell sits on a rock while the barrel spans a void. Why is this unacceptable?

Rocks under bells improve the gasket seal Voids under the barrel reduce earth load The practice is required by AWWA for all gasketed pipe The pipe must not rest on bells or rocks; the barrel needs uniform support and compacted haunches

Correct Answer:

The pipe must not rest on bells or rocks; the barrel needs uniform support and compacted haunches

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