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Building Materials

Q1:

The minimum compressive strength of Ilnd class bricks should be

A 75 kg/cm2

B 90 kg/cm2

C 100 kg/cm2

D 120 kg/cm2

E 150 kg/cm2.

ANS:A - 75 kg/cm2

Class A bricks have a compressive strength 125N/mm^2 and water absorption less than 4.5%.

Class B bricks have a compressive strength 75N/mm^2 and water absorption less than 7%.



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