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

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

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Building Construction
Pick up the correct statements from the following:

Cracks appear on the plastered surface in the form of hair cracks
All listed here
Excessive thermal variations in the backing or plaster causes the plaster to fall
In brick work, the efflorescence is removed by applying a solution of zinc sulphate and water

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