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ESE 2021 Technical Quiz || Shear Strength of Soil
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Question 1
A cylindrical specimen of saturated clay 40 mm in diameter and 80 mm in overall length is tested in an unconfined compressive testing machine. If the specimen fails under an axial load of 46.5 N and the change in length at failure is 1 cm, then the unconfined compressive strength of sample ( in kN/m2) is
Question 2
A curve which shows the changes in the stresses as the load acting on the soil specimen changes is
i. Stress path
ii. Locus of points of maximum shear stress
iii. Mohr’s circle
i. Stress path
ii. Locus of points of maximum shear stress
iii. Mohr’s circle
Question 3
The Mohr’s straight theory is based on the following fact.
Question 4
A cylindrical soil specimen of saturated clay, 3.50cm diameter and 8 cm length, is tested in an unconfined compression testing machine. The specimen failed under a vertical load of 50kg together with an accompanying additional deformation of 8mm. What is the unconfined compressive strength of this clay?
Question 5
A laboratory vane shear test apparatus is used to determine the shear strength of a clay sample and only one end of the vane takes part in shearing the soil. If T = applied torque, H = height of vane and D = diameter of the vane, then the shear strength of the clay is given by
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Jun 30ESE & GATE CE
