Question: 1. In making a field identification test of a soil, you find that less that 50% by weight of the coarse fraction is less than ¼ in. (6mm) in size. The fine fraction of the soil exhibits low dry strength and gives a medium speed reaction to the shaking test. How would you classify this soil under the Unified System?
2. A rectangular ditch having a cross-sectional area of 24 sq ft (2.2 m2) is being excavated in clay. The soil's angle of repose is 35° and its swell is 30%. Find the height and width of the triangular spoil bank that will result from the trench excavation.