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Building Materials

Q1: The minimum compressive strength of 1st class bricks should be

A 75 kg/cm2

B 90 kg/cm2

C 100 kg/cm2

D 120 kg/cm2

E 130 kg/cm2.

ANS:C - 100 kg/cm2

Minimum compressive strength of 1st class brick is 105 kg/sq. Cm, 2nd class brick is 70 kg/sq. Cm and 3rd class brick is 35 kg/sq. Cm.



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