AZ ROC CR-21 Hardscaping & Irrigation Practice Questions - Arizona ROC CR-21 C-21 R-21 Hardscaping And Irrigation Systems Examination Exam

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What is the minimum recommended surface slope for a concrete paver installation to ensure positive water drainage away from adjacent structures?

3/16 inch per foot (1.5% to 2.0% slope) 1/16 inch per foot (0.5% slope) 1/2 inch per foot (4.0% slope) 3/4 inch per foot (6.0% slope)

Correct Answer:

3/16 inch per foot (1.5% to 2.0% slope)

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