Building Construction
Pick up the correct statements from the following:

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
Cracks appear on the plastered surface in the form of hair cracks

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Building Construction
Depth or height of the arch is the

Vertical distance between springing line and intrados
Perpendicular distance between intrados and extrados
None of these
Perpendicular distance between springing line and extrados

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