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

After final grinding is over, oxalic acid mixed with water is spread over and rubbed hard with soft material
Glass strips are driven into the layer according to the pattern required
A base course is prepared as in cement concrete flooring
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

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Building Construction
Pick up the correct statements from the following:

All listed here
Cracks appear on the plastered surface in the form of hair cracks
In brick work, the efflorescence is removed by applying a solution of zinc sulphate and water
Excessive thermal variations in the backing or plaster causes the plaster to fall

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