Building Construction
Depth or height of the arch is the

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

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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
Excessive thermal variations in the backing or plaster causes the plaster to fall
All listed here
In brick work, the efflorescence is removed by applying a solution of zinc sulphate and water

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