Building Materials Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth? Silica and alkalies Lime stone and alumina Alkalies and magnesium Alumina and iron Silica and alkalies Lime stone and alumina Alkalies and magnesium Alumina and iron ANSWER DOWNLOAD EXAMIANS APP
Building Materials Proper amount of entrained air in concrete results in (i) Better workability (ii) Better resistance to freezing and thawing (iii) Lesser workability (iv) Less resistance to freezing and thawing (ii) and (iii) (i) and (iv) (iii) and (iv) (i) and (ii) (ii) and (iii) (i) and (iv) (iii) and (iv) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials The specific gravity of marble, is 2.5 2.66 2.6 2.72 2.5 2.66 2.6 2.72 ANSWER DOWNLOAD EXAMIANS APP
Building Materials The slag which floats on the surface of the molten iron generally contains Lime (CaO) 45% Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% All listed here Silica (SiO2) 35% Lime (CaO) 45% Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% All listed here Silica (SiO2) 35% ANSWER DOWNLOAD EXAMIANS APP
Building Materials The variety of pig iron used for manufacture of wrought iron, is Bessemer pig Mottled pig Grey or foundry pig White forge pig Bessemer pig Mottled pig Grey or foundry pig White forge pig ANSWER DOWNLOAD EXAMIANS APP
Building Materials Gypsum is a Chemically precipitated sedimentary rock Mechanically formed sedimentary rock Metamorphic rock Igneous rock Chemically precipitated sedimentary rock Mechanically formed sedimentary rock Metamorphic rock Igneous rock ANSWER DOWNLOAD EXAMIANS APP
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