Building Construction
The loose pockets in soil mass can be bridged safely by providing a raft foundation provided the soft area is smaller than

Three-fourth the column spacing
One-third the column spacing
Half the column spacing
The column spacing

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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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