Building Materials Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth? Lime stone and alumina Silica and alkalies Alkalies and magnesium Alumina and iron Lime stone and alumina Silica and alkalies Alkalies and magnesium Alumina and iron ANSWER DOWNLOAD EXAMIANS APP
Building Materials Pick up correct statement from the following: Fibre boards are obtained by impregnating a resin product on fibres Fibre boards are used for light weight standing members All listed here Fibre boards are used for thermal and acoustic control Fibre boards are obtained by impregnating a resin product on fibres Fibre boards are used for light weight standing members All listed here Fibre boards are used for thermal and acoustic control ANSWER DOWNLOAD EXAMIANS APP
Building Materials A good brick earth should contain: Not more than 5% of lime About 50% to 60% of silica About 20% to 30% of alumina All listed here Not more than 5% of lime About 50% to 60% of silica About 20% to 30% of alumina All listed here ANSWER DOWNLOAD EXAMIANS APP
Building Materials Commonly used thinner in Oil paints, is naphtha All listed here Lacquer paints, is alcohol Cellulose paints is ethyl acetate Oil paints, is naphtha All listed here Lacquer paints, is alcohol Cellulose paints is ethyl acetate ANSWER DOWNLOAD EXAMIANS APP
Building Materials Asbestos All of these Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) Is a natural fibrous mineral substance Contains iron oxide and alumina All of these Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) Is a natural fibrous mineral substance Contains iron oxide and alumina 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 All listed here 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence 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 All listed here 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence No grey or white deposits appear on the surface, the brick is free from soluble salts ANSWER DOWNLOAD EXAMIANS APP
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