A dry sand specimen is put through a tri-axial test the cell pressure – McqOptions

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1.	A dry sand specimen is put through a tri-axial test the cell pressure is 50 kPa and the deviator stress at failure is 100 kPa. The angle of internal friction for the sand specimen is
A.	15°
B.	30°
C.	45°
D.	55°
Answer» C. 45°

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