Building Construction
The type of pointing in which upper side of mortar joints is kept about 12 mm inside the face of the masonry and bottom is kept flushed with face of wall, is

Truck pointing
Recessed pointing
Grooved pointing
Struck pointing

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Building Construction
Two columns 50 cm × 50 cm and 60 cm × 60 cm carry 80 tonnes and 120 tonnes of loads respectively. The centre to centre distance between columns is 5.00 metres. The permissible bearing capacity of the soil is 20 t/m2. If the footing is not to project more than 25 cm beyond the outside of the smaller column, pick up the correct design parameters of the footing from the following:

The length of the foundation slab = 7.00 m
All listed here
Distance of C.G. of the loads from the smaller column = 3.00 m
Area of footing slab = 11.00 m2

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Building Construction
Slate

Possesses good water absorption capacity
Is a metamorphic rock
Splits into thin sheets along its bedding planes
Has a smooth surface and contains alumina and silica

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