a) 15.5 kN/m3
b) 16 kN/m3
c) 16.5 kN/m3
d) 17 kN/m3
Answer: c
Explanation: Given,
Voids ratio e=0.6
Specific gravity G=2.7
Dry unit weight γd = (G* γw/1+e)
Unit weight of water γw=9.8 kN/m3
γd = (2.7*9.81)/(1+0.6)
γd = 16.5 kN/m3.
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