ARE Study Review

Which type of soil has a greater angle of repose, the internal angle between the surface of the pile and the horizontal surface? A. wet clay, B. wet sand C. dry gravel with sand, D. dry sand

What is the maximum recommended slope for vehicle parking? A. 2.5% B. 5% C. 8% D. 10% E. 12% Answer B. 5 percent (1:20 ratio) max preferred under ADA guidelines. ARE 4.0 exam prep: SPD

What is the recommended slope for a 4" building sewer? A. 1/16 in per foot B. 1/8 in per foot C. 1/2 in per foot D. 1 in per foot Answer 1/8 inch per foot. ARE 4.0 exam prep: SPD

What range of slopes would make a site easiest to build on and suitable for all types of intense activities? Answer

On a topography map indicated with 5foot contour intervals, what is the maximum horizontal distance for a 20% grade? Answer

What percentage slope is considered very steep or high and what are these slopes subject to? Answer Slopes of 50% or greater are quite high and are prone to erosion, fires and mud slides. These areas should be avoided as building sites. ARE 4.0 exam prep: SPD

What is the maximum recommended slope for streets, roads or paved driveways? A. 4% B. 5% C. 8% D. 10% E. 12% Answer D. 10% maximum. ARE 4.0 exam prep: spd Answer

What is the grade in percent if horizontal distance is 40 feet and the vertical distance is 1.6 feet? And what type of activities are suitable for this slope (intensive, informal, limited, none)? Answer g = v/h x 100 = 1.6/40 x 100 = 4%, which is suitable for all types of activities or intensive activities. ARE 4.0 exam prep: SPD

Which of the following is the maximum slope for a grassed area? A. 0.5% B. 2% C. 2-10% D. 25% E. 50% F. none of the above Answer D. 25%. 0.5%=min. for surface drainage, 2%=proper slope away from building, 2-10%=range for drainage ditches, 50%=max. for stable soil with surface cover(rocks, ivy...) ARE 4.0 exam prep: SPD

A double loaded parking lot with curbs is sloped across its width (~ 62ft). Name two options that can be included in its design to allow for drainage. Answer Either curb cutouts or drains to a storm sewer on the side with the lower elevation. ARE 4.0 exam prep: SPD