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In unconfined compression test the value of σ2 and σ3 is equal to ____________

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in Geotechnical Engineering I by (102k points)
In unconfined compression test the value of σ2 and σ3 is equal to ____________

(a) 1

(b) 0

(c) 0.5

(d) ½

I had been asked this question in an interview for job.

This key question is from Unconfined Compression Test topic in chapter Shear Strength of Geotechnical Engineering I

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The correct answer is (b) 0

The explanation is: The unconfined compression test is a special case of tri axial compression test in which σ2 = σ3 = 0.

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