Building Construction
Herringbone bond is used for

Walls having thickness more than 4 bricks
Architectural finish to the face work
Ornamental panels in brick flooring
All of these

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Building Construction
In the method of tube boring of soil investigation, the following is essential:

A tube of about 2 meters length and 20 cm diameter with a cutting edge
A flap valve at the bottom of tube is provided to extract the soil sample
The tube is raised and lowered by 4 thick rope moving over a pulley suspended on a tripod stand
All listed here

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