Building Materials When a brick is immersed in water for 24 hours and then dried, if 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 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 ANSWER DOWNLOAD EXAMIANS APP
Building Materials For slaking of 10 kg of CaO, the theoretical amount of water is 1.5 kg 3.2 kg None of these 2.2 kg 1.5 kg 3.2 kg None of these 2.2 kg ANSWER DOWNLOAD EXAMIANS APP
Building Materials Invar contains 12% of nickel 24% of nickel 30% of nickel 36% of nickel 12% of nickel 24% of nickel 30% of nickel 36% of nickel ANSWER DOWNLOAD EXAMIANS APP
Building Materials Pig iron made from haematite ores free from sulphur, phosphorus and copper, is known as White or forge pig Grey or foundry pig Mottled pig Bessemer pig White or forge pig Grey or foundry pig Mottled pig Bessemer pig ANSWER DOWNLOAD EXAMIANS APP
Building Materials The proportions of lime and sand in the mortar normally used in brick construction are 1 : 4 1 : 6 1 : 8 1 : 2 1 : 4 1 : 6 1 : 8 1 : 2 ANSWER DOWNLOAD EXAMIANS APP
Building Materials Lime concrete is generally used for Wall foundations Neither (A) nor (B) Both (A) and (B) Flooring at ground level Wall foundations Neither (A) nor (B) Both (A) and (B) Flooring at ground level ANSWER DOWNLOAD EXAMIANS APP
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