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

The tube is raised and lowered by 4 thick rope moving over a pulley suspended on a tripod stand
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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

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Building Construction
Which one of the following factors is considered for the orientation of buildings?

The extent up to which the sunrays penetrate with the verandah
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The direction of the prevailing winds in the area
The exposure of the walls and roof of the buildings to the rays of sun

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