Building Construction
Weep holes are provided in retaining and breast walls

To add architectural beauty
To increase compaction of the earth retained
To drain off the water from the filling
To ventilate the stone masonry

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Building Construction
For constructing a terrazzo floor, Pick up the incorrect statement from the following:

A 32 mm thick layer of cement concrete (1 : 2 : 4) is laid on the base course and the surface is made smooth by trowelling
Glass strips are driven into the layer according to the pattern required
After final grinding is over, oxalic acid mixed with water is spread over and rubbed hard with soft material
A base course is prepared as in cement concrete flooring

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