Building Construction
For providing a raft foundation, the following activities are involved1.Ramming the foundation bed2.Excavation of the soil upto required depth3.Laying the reinforcement over the foundation bed4.Curing the cement concrete placed over reinforcement5.Pouring the cement concrete over the reinforcementThe correct sequence is

5, 4, 3, 2, 1
2, 1, 3, 5, 4
1, 2, 3, 4, 5
3, 2, 5, 1, 4

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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
A base course is prepared as in cement concrete flooring
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

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