21. In a triaxial compression test when drainage is allowed during the first stage (i. e. application of cell pressure) only and not during the second stage (i.e. application of deviator stress at constant cell pressure), the test is known as
22. A normally consolidated clay settled 10 mm when effective stress was increased from 100 kN/m2 to 200 kN/m2. If the effective stress is further increased from 200 kN/m2 to 400 kN/m2 , then the settlement of the same clay is
23. The total discharge from two wells situated near to each other is
24. Direct measurement of permeability of the specimen at any stage of loading can be made
25. The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing
26. A retaining wall 6m high supports a backfill with a surcharge angle of 10°. The back of the wall is inclined to the vertical at a positive batter angle of 5°. If the angle of wall friction is 7°, then the resultant active earth pressure will act at a distance of 2 m above the base and inclined to the horizontal at an angle of
27. The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively
28. Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively.
If other things remain constant, the coefficient of permeability
If other things remain constant, the coefficient of permeability
29. At liquid limit, all soils possess
30. Sensitivity of a soil can be defined as
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