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

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

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Building Construction
Raft foundations are used for:

Counter acting the hydrostatic effect
All listed here
Spanning over small soft or loose pockets
Providing increased area of foundation over poor bearing capacity of soil

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