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

Typical cover over a residential lawn-sprinkler lateral in landscape work is about:

2 in., just under the sod 8 to 12 in. 36 in., the same as a municipal water main 60 in., below all New Mexico frost lines

Correct Answer:

8 to 12 in.

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