Building Construction
In grillage foundations, distance between flanges of grillage beams, is kept

Twice the flange width
40 cm
Equal to flange width
Maximum of (A), (B) and (C)

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Building Construction
Raft foundations are used for:

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

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

All listed here
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
In organic fine grained silt soil possesses no plasticity

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