The critical hydraulic gradient ic is unity when the specific gravity

1.	The critical hydraulic gradient i_c is unity when the specific gravity G=2.67 and voids ratio e is ______
A.	0.67
B.	0.33
C.	0.43
D.	0.80
Answer» B. 0.33

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The critical hydraulic gradient ic is unity when the specific gravity G=2.67 and voids ratio e is ______

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The critical hydraulic gradient i_c is unity when the specific gravity G=2.67 and voids ratio e is ______