Building Construction
Negative skin friction

Is a downward drag acting on a pile due to downward movement of the surrounding compressible soil relative to the pile
Both (A) and (B)
Develops due to lowering of ground water
Neither (A) not (B)

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Building Construction
Mansard roof is a roof which slopes in

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

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