Building Materials For the manufacture of Portland cement, the proportions of raw materials used, are Lime 63% ; silica 22% ; other ingredients 15% Silica 40% ; lime 40% ; other ingredients 20% Lime 22% ; silica 63% ; other ingredients 15% Silica 70% ; lime 20% ; other ingredients 10% Lime 63% ; silica 22% ; other ingredients 15% Silica 40% ; lime 40% ; other ingredients 20% Lime 22% ; silica 63% ; other ingredients 15% Silica 70% ; lime 20% ; other ingredients 10% ANSWER DOWNLOAD EXAMIANS APP
Building Materials Study the following statements.(i) Hydraulic lime is suitable for white washing,(ii) Fat lime is suitable for whitewashing,(iii) Hydraulic lime is suitable for making mortar,(iv) Fat lime is suitable for making mortar. (ii) and (iii) (i) and (ii) (i) and (iv) (iii) and (iv) (ii) and (iii) (i) and (ii) (i) and (iv) (iii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Building Materials The usual percentages of clay and metal in cermet are: 60%, 40% 70%, 30% 80%, 20% 50%, 50% 60%, 40% 70%, 30% 80%, 20% 50%, 50% ANSWER DOWNLOAD EXAMIANS APP
Building Materials For one cubic metre of brick masonry, number of bricks required, is 450 500 425 400 450 500 425 400 ANSWER DOWNLOAD EXAMIANS APP
Building Materials Compared to mild steel, cast iron has(i) High compressive strength(ii) High tensile strength(iii) Low compressive strength(iv) Low tensile strength (i) and (ii) (iii) and (iv) (ii) and (iii) (i) and (iv) (i) and (ii) (iii) and (iv) (ii) and (iii) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Building Materials Pig iron made from haematite ores free from sulphur, phosphorus and copper, is known as Mottled pig Bessemer pig White or forge pig Grey or foundry pig Mottled pig Bessemer pig White or forge pig Grey or foundry pig ANSWER DOWNLOAD EXAMIANS APP
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