Question 1 - Soils 1.1 Two material sources (borrow pits) are in close proximity to a new road construction site. The sieve analysis test results from Source 1 is as follows: Site 1 Percentage passing Sieve size Sample Sample Sample Sample Sample 1-1 1-2 1-3 1-4 1-5 26.5 mm 100 100 19.0 mm 95 94 95 9.5 mm 85 85 4.75 mm 75 72 75 2.36 mm 72 68 0.425 mm 39 40 42 0.075 mm 30 31 8555223 100 100 93 93 85 85 78 75 72 70 41 833223 100 68 30 30 29 The sieve analysis test results from Source 2 is as follows: Site 2 Percentage passing Sieve size Sample Sample Sample Sample Sample 2-1 2-2 2-3 2-4 2-5 26.5 mm 100 100 19.0 mm 95 94 9.5 mm 85 85 4.75 mm 75 72 75 2.36 mm 72 68 0.425 mm 39 40 42 0.075 mm 30 31 8532228 100 100 95 93 78 72 70 41 30 30 8358818 100 93 85 75 68 38 29 8822222 The grading specification for a soil to be used as a selected material for road construction, is as follows: