Building Construction
Pick up the correct statement about silt soil from the following:

The silt soil has particle size from 0.02 mm to 0.06 mm
All listed here
The least plastic type normally consists of more or less equidimensional grains of quartz
In organic fine grained silt soil possesses no plasticity

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Building Construction
Negative skin friction

Is a downward drag acting on a pile due to downward movement of the surrounding compressible soil relative to the pile
Neither (A) not (B)
Both (A) and (B)
Develops due to lowering of ground water

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