Building Construction
A temporary rigid structure having platforms to enable masons to work at different stages of a building, is known as

Raking shore
Dead shore
Under pinning
Scaffolding

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Building Construction
Mansard roof is a roof which slopes in

Two directions without break in the slope on each side
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

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