Building Construction
The function of king post in a king post roof truss is

To receive the ends of principal rafter
To prevent the walls from spreading outward
To prevent the tie beam from sagging at its centre
To support the frame work of the roof

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Building Construction
For constructing a terrazzo floor, Pick up the incorrect statement from the following:

A base course is prepared as in cement concrete flooring
A 32 mm thick layer of cement concrete (1 : 2 : 4) is laid on the base course and the surface is made smooth by trowelling
After final grinding is over, oxalic acid mixed with water is spread over and rubbed hard with soft material
Glass strips are driven into the layer according to the pattern required

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