Building Materials Pig iron is manufactured from the ores by Dressing Calcination and roasting Smelting All of these Dressing Calcination and roasting Smelting All of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials The slag which floats on the surface of the molten iron generally contains All listed here Lime (CaO) 45% Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% Silica (SiO2) 35% All listed here Lime (CaO) 45% Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% Silica (SiO2) 35% ANSWER DOWNLOAD EXAMIANS APP
Building Materials Bitumen is generally obtained from Synthetic material Organic material Coal Petroleum product Synthetic material Organic material Coal Petroleum product ANSWER DOWNLOAD EXAMIANS APP
Building Materials When a brick is immersed in water for 24 hours and then dried, if 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence All listed here No grey or white deposits appear on the surface, the brick is free from soluble salts 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence 10 percent surface is covered with grey or white deposits, the brick has slight 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 process of mixing clay, water and other ingredients to make brick is known as Moulding Pugging Drying Kneading Moulding Pugging Drying Kneading ANSWER DOWNLOAD EXAMIANS APP
Building Materials Kaolin is chemically classified as Argillaceous rock Calcareous rock Metamorphic rock Siliceous rock Argillaceous rock Calcareous rock Metamorphic rock Siliceous rock ANSWER DOWNLOAD EXAMIANS APP
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