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Mining Engineering · Q55

Rock Mechanics and Roof Supporting

Engineering and GATE · Mining Engineering · question 55

Q55

From a series of tri-axial tests conducted on some sandstone specimens, the relationship between the major and the minor principal stresses in MPa is found to be σ1 = 100 + 5 σ3. The angle of internal friction in degrees of that sandstone is

A.
38
B.
79
C.
42
Answer
D.
32

Answer: Option C

Solution

Answer: Option C
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