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GATE 2019 Soil Mechanics Quiz 6
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Question 1
Which of the following statement is TRUE for the relation between discharge velocity and seepage velocity?
Question 2
For a saturated sand deposit, the void ratio and the specific gravity of solids are 0.70 and 2.67, respectively. The critical (upward) hydraulic gradient for the deposit would be
Question 3
The soil profile below a lake with water level at elevation = 0 m and lake bottom at elevation = –10 m is shown in the figure, where k is the permeability coefficient. A piezometer (stand pipe) installed in the sand layer shows a reading of +10 m elevation. Assume that the piezometric head is uniform in the sand layer. The quantity of water (in m3/s) flowing into the lake from the sand layer through the silt layer per unit area of the lake bed is:
Question 4
A 1:50 scale model of a spillway is to be tested in the laboratory. The discharge in the prototype is 1000M3/s. The discharge to be maintained in the model test is
Question 5
An unit volume of a mass of saturated soil is subjected to horizontal seepage. The saturated unit weight is 22 kN/m3 and the hydraulic gradient is 0.3. The resultant body force on the soil mass is
Question 6
For a two –dimensional irrotational flow, the velocity potential is defined as ϕ =ln (x2 + y2). Which of the following is a possible stream function , for this flow?
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May 15ESE & GATE CE