Building Construction
The type of joint commonly used at the junction of a principal rafter and tie beam in timber trusses is

Mortise and tenon joint
Mitred joint
Oblique mortise and tenon joint
Butt joint

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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
In organic fine grained silt soil possesses no plasticity
All listed here
The least plastic type normally consists of more or less equidimensional grains of quartz

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