DHARM
N-GEO\OBJ.PM5 882882 GEOTECHNICAL ENGINEERING
- The sensitivity of a clay is 15. How do you classify it with regard to sensitivity? What
could be the structure? - Activity is a property typical of ............ soils.
- Shaking test is used to identify .............
- Inorganic silt is also called .............
- The most active clay mineral in respect of inducing shrinkage and swelling is .............
- Triangular chart is given in the ............ classification system of soils.
- The plasticity chart is obtained by plotting
(a) Plasticity index on x-axis and liquid limit on y-axis
(b) Liquid limit on x-axis and plasticity index on y-axis
(c) Plastic limit on x-axis and plasticity index on y-axis
(d) Plasticity index on x-axis and plastic limit on y-axis - Textaral classifications are merely based on
(a) grain size (b) consistency limits
(c) grain size and consistency limits (d) plasticity index - 70% of a soil is retained on 75-μ I.S. Sieve. 60% of the coarse fraction is retained on 4.75
mm I.S. Sieve. The uniformity coefficient is 5 and the coefficient of curvature is 2. What
is the soil designation according to IS Classification? - Liquid limit for fine-grained soils of high compressibility is ............ according to IS clas-
sification. - Clays exhibit more hygroscopicity than sands because .............
- Hygroscopic moisture can be removed by oven-drying at a temperature of .............
- The effective stress controls certain aspects of soil behaviour, notably ............ and ............
. - The flow of water through soil is invariably (except in the case of coarse sands and
gravels) ............. - Seepage velocity (Vs) is related to the superficial velocity (V) by the equation .............
- The constant of proportionality between seepage velocity and hydraulic gradient is called
(a) Seepage coefficient
(b) Coefficient of Transmissibility
(c) Modified coefficient of permeability
(d) Coefficient of percolation - Velocity head in soils is invariably .............
- Negative pore pressure can exist. True/False.
- For soils of low permeability, ............ permeameter is used in the laboratory to deter-
mine the coefficient of permeability. - The analysis of flow towards a well was given by ............ and modified by .............
- The minimum number of observation wells required to determine the permeability of a
stratum in the field by a pumping test is
(a) One (b) Two
(c) Three (d) None of the above