Building Construction
The size of a floor tile commonly used, is

22.5 × 22.5 cm × 2.2 cm
20 cm × 20 cm × 2 cm
15 cm × 15 cm × 1.8 cm
All listed here

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Building Construction
In a colar beam roof

There is a horizontal tie at the feet of rafters only
There is no horizontal tie beam
There is a horizontal tie at almost the middle of rafters only
There are two horizontal ties, one at the feet and other at the middle of the rafters

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Building Construction
During percussion drilling

All listed here
Caving or mixing of strata are caused in soft soils or cohesion-less soils
The soil to a considerable depth below the bottom of the hole gets disturbed
Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole

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Building Construction
Pick up the correct statement about silt soil from the following:

The silt soil has particle size from 0.02 mm to 0.06 mm
All listed here
The least plastic type normally consists of more or less equidimensional grains of quartz
In organic fine grained silt soil possesses no plasticity

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