1.If the sieve analysis of this soil indicated that 85% of this soil was finer than #200 sieve, what is its classifications following USCS system (use atterberg limit tests and penetrometer results separately and compare the classifications)?

2.A two-dimensional flow field is given by u=2+xy+3t^2, v=2xy^2+t. Find the velocity and acceleration of a particle of fluid at point (2,3) at t=4. Specify units in terms of L and T.

3.Water flows in a river. At 9AM the flow past bridge 1 is 37.2 m^3/s. At the same instant the flow past bridge 2 is 26.9 m^3/s. At what rate is water being stored in the river between the two bridges at this instant? Assume zero seepage and negligible evaporation.

4.Sketch the flow field defined by u=3y, v=2 and derive expressions for the x and y components of acceleration. Find the magnitude of the velocity and acceleration for the point having the coordinates (3,4). Specify units in terms of L and T.