Building Construction
Mansard roof is a roof which slopes in

Two directions with break in the slope on each side
Four directions without break in the slope on each side
Four directions with break in the slope on each side
Two directions without break in the slope on each side

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

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