Building Construction
Auger boring

All of these
Is most economical up-to a depth of 5 meters
Is generally employed in cohesive and other self soils above water table
Is the most primitive method for making a hole in the ground

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Building Construction
In English garden wall bond

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

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