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A saturated clay layer with single drainage face takes 4 years to attain 50% degree of consolidation. If the clay layer had double drainage, then the time

required to attain 50% degree of consolidation is

A. 8 years B. 4 years C. 2 years D. 1 year


B.4 years....................................
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Answer is D.) 1( one) year.because brick had double drainage so it will take 100% consolidation in 2 year and it's 50%is 1 year..
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