Building Construction
The type of pointing in which upper side of mortar joints is kept about 12 mm inside the face of the masonry and bottom is kept flushed with face of wall, is

Recessed pointing
Grooved pointing
Truck pointing
Struck pointing

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Building Construction
Auger boring

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

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