Building Materials The slag which floats on the surface of the molten iron generally contains Silica (SiO2) 35% Lime (CaO) 45% All listed here Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% Silica (SiO2) 35% Lime (CaO) 45% All listed here Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth? Alkalies and magnesium Lime stone and alumina Silica and alkalies Alumina and iron Alkalies and magnesium Lime stone and alumina Silica and alkalies Alumina and iron ANSWER DOWNLOAD EXAMIANS APP
Building Materials The weight of a good quality brick when immersed in water for a period of 16 hours should not exceed the weight of dry brick None of these 20 % 10 % 15 % None of these 20 % 10 % 15 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials The curved swellings from the growth of layers or wounds left after branches are cut off in an irregular manner are known as Rindgalls Knots Burls None of these Rindgalls Knots Burls None of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials The minimum compressive strength of 1st class bricks should be 75 kg/cm² 100 kg/cm² 120 kg/cm² 75 kg/cm² 75 kg/cm² 100 kg/cm² 120 kg/cm² 75 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Building Materials The stone suitable for rubble masonry should be. Light Heavy Hard Tough Light Heavy Hard Tough ANSWER DOWNLOAD EXAMIANS APP
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