Building Materials When a brick is immersed in water for 24 hours and then dried, if 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence All listed here No grey or white deposits appear on the surface, the brick is free from soluble salts 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence All listed here No grey or white deposits appear on the surface, the brick is free from soluble salts ANSWER DOWNLOAD EXAMIANS APP
Building Materials The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively: 10, 15, 75 75, 10, 15 15, 75, 10 10, 75, 15 10, 15, 75 75, 10, 15 15, 75, 10 10, 75, 15 ANSWER DOWNLOAD EXAMIANS APP
Building Materials A good building stone should not absorb water more than 15 % 10 % 20 % 5 % 15 % 10 % 20 % 5 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials Assertion A : Pure lime takes a long time to develop adequate strength.Reason R : Pure lime has slow hardening characteristics.Select your answer according to the coding system given below: A is false but R is true Both A and R is true and R is correct explanation of A A is true but R is false Both A and R is true and R is not a correct explanation of A A is false but R is true Both A and R is true and R is correct explanation of A A is true but R is false Both A and R is true and R is not a correct explanation of A ANSWER DOWNLOAD EXAMIANS APP
Building Materials Due to attack of dry rot, the timber Cracks Reduces to powder Shrinks None of these Cracks Reduces to powder Shrinks None of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials Slacking of lime is affected by Keeping it exposed to air Immersing the lime in water Crushing the lime lumps None of these Keeping it exposed to air Immersing the lime in water Crushing the lime lumps None of these ANSWER DOWNLOAD EXAMIANS APP
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