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Grading soil

What is the difference in precision between rough grading and finish grading in relation to approximate final grades?
A. rough = 12-18 inches, finish = 2-4 inches
B. rough = 10-14 inches, finish = 1-5 inches
C. rough = 6-12 inches, finish = 1 inch
D. rough = 5-10 inches, finish = 1/2 inch

AnswerC. rough grading is within 6-12 inches of final and finish grading is within 1 inch of final.

ARE 4.0 exam prep: SPD

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