Building Construction
In English garden wall bond

All of these
Queen closer in provided in each heading course
One course of headers to three or five course of stretchers
The middle course of stretchers is started with a header to give proper vertical joints

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Building Construction
Negative skin friction

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

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