Building Construction
Which one of the following piles has a cast iron shoe even after removal of the hollow cylindrical steel casing?

Vibro pile
Both (A) and (C) of the above
Pedestal pile
Simplex pile

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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
Gravels

Are cohesionless aggregates
All listed here
Never swell when they come into contact with water
Vary in size between 2 to 20 mm

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