Building Construction
Auger boring

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

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Building Construction
Which one of the following activities is not correct as applicable to brick corbels

The maximum projection of the corbel should not be more than the thickness of the wall
Stretcher bond is generally used for the construction of brick corbel
The discontinuous corbels are used to carry heavy concentrated loads
The maximum projection of each corbel course should be limited to a quarter brick at a time

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