Building Materials For the manufacture of Portland cement, the proportions of raw materials used, are Lime 22% ; silica 63% ; other ingredients 15% Silica 40% ; lime 40% ; other ingredients 20% Silica 70% ; lime 20% ; other ingredients 10% Lime 63% ; silica 22% ; other ingredients 15% Lime 22% ; silica 63% ; other ingredients 15% Silica 40% ; lime 40% ; other ingredients 20% Silica 70% ; lime 20% ; other ingredients 10% Lime 63% ; silica 22% ; other ingredients 15% ANSWER DOWNLOAD EXAMIANS APP
Building Materials Asbestos Contains iron oxide and alumina Is a natural fibrous mineral substance Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) All of these Contains iron oxide and alumina Is a natural fibrous mineral substance Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) All of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials The internal size of mould used in brick preparation is None of these Smaller than the size of a fully burnt brick Equal to the size of a fully burnt brick Greater than the size of a fully burnt brick None of these Smaller than the size of a fully burnt brick Equal to the size of a fully burnt brick Greater than the size of a fully burnt brick ANSWER DOWNLOAD EXAMIANS APP
Building Materials Jhumb bricks are Over burnt None of these Under burnt Kutcha Over burnt None of these Under burnt Kutcha ANSWER DOWNLOAD EXAMIANS APP
Building Materials The commonly used base for iron and steel work, is Red lead Zinc white Titanium white White lead Red lead Zinc white Titanium white White lead ANSWER DOWNLOAD EXAMIANS APP
Building Materials The percentage of alumina in a good brick earth lies between 70 to 80 % 5 to 10 % 50 to 60 % 20 to 30 % 70 to 80 % 5 to 10 % 50 to 60 % 20 to 30 % ANSWER DOWNLOAD EXAMIANS APP
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