NM CID MS-6 Practice Questions - New Mexico CID MS-6 Lawn Sprinklers Examination Exam

Select bedding and the first backfill around PVC or PE irrigation pipe should be:

Angular broken concrete for thrust Soil free of rocks, clods, and debris that can point-load the wall Frozen chunks placed to keep the pipe cool Native caliche boulders tamped directly on the invert

Correct Answer:

Soil free of rocks, clods, and debris that can point-load the wall

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