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GATE CE 2018: Soil Mechanics & Foundation Engineering Quiz 1
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Question 1
A certain soil has the following properties: Gs=2.71, n=40% and w=20%. The degree of saturation of soil (rounded off to the nearest percent) is _____
Question 2
A fine grained soil is found to be plastic in the water content range of 26-48%. As per Indian Standard Classification System, the soil is classified as
Question 3
The porosity (n) and the degree of saturation (S) of a soil sample are 0.7 and 40%, respectively. In a 100m3 volume of the soil, the volume (expressed in m3) of air is ________ .
Question 4
If the water content of a fully saturated soil mass is 100% then the void ratio of the sample is
Question 5
A 588 cm3 volume of moist sand weighs 1010 gm. Its dry weight is 918 gm and specific gravity of solids, G is 2.67. Assuming density of water as 1 gm/cm3, the void ratio is __________.
Question 6
Let G be the specific gravity of soil solids, w the water content in the soil sample, t„ the unit weight of water, and y, the dry unit weight of the soil. The equation for the zero air voids line in a compaction test plot is
Question 7
OMC-SP and MDD-SP denote the optimum moisture content and maximum dry density obtained from standard Proctor compaction test, respectively. OMC-MP and MDD-MP denote the optimum moisture content and maximum dry density obtained from the modified Proctor compaction test, respectively. Which one of the following is correct?
Question 8
The laboratory tests on a soil sample gave the following results:
1). Natural water content, wn = 25%
2). Liquid limit, wL = 60%
3). Plastic limit, wp = 35%
4). Percentage of particle less than 2μ = 20%
The value of activity number is
Question 9
An excavation is made with a vertical face in a clay soil, which has cu = 50 kN/m2, γ = 18 kN/m3. For pure clay and vertical face, Taylor's Stability Number is 0.216, the maximum depth (in m) of excavation so that the excavation is stable is
Question 10
Classify the soil with the following properties according to IS classification:
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Feb 13ESE & GATE CE
