Building Materials For the manufacture of Portland cement, the proportions of raw materials used, are Lime 22% ; silica 63% ; other ingredients 15% Silica 70% ; lime 20% ; other ingredients 10% Silica 40% ; lime 40% ; other ingredients 20% Lime 63% ; silica 22% ; other ingredients 15% Lime 22% ; silica 63% ; other ingredients 15% Silica 70% ; lime 20% ; other ingredients 10% Silica 40% ; lime 40% ; other ingredients 20% Lime 63% ; silica 22% ; other ingredients 15% ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following represents a metamorphic rock?(i) Slate(ii) Shale(iii) Quartzite Both (ii) and (iii) Only (iii) All (i), (ii) and (iii) Both (i) and (iii) Both (ii) and (iii) Only (iii) All (i), (ii) and (iii) Both (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials For slaking of 10 kg of CaO, the theoretical amount of water is 2.2 kg 3.2 kg None of these 1.5 kg 2.2 kg 3.2 kg None of these 1.5 kg ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following stone is best suited for construction of piers and abutments of a railway bridge? Quartzite Granite Sand stone Lime stone Quartzite Granite Sand stone Lime stone ANSWER DOWNLOAD EXAMIANS APP
Building Materials The basic purpose of a retarder in concrete is To render the concrete more water tight To decrease the initial setting time of cement paste in concrete To improve the workability of concrete mix To increase the initial setting time of cement paste in concrete To render the concrete more water tight To decrease the initial setting time of cement paste in concrete To improve the workability of concrete mix To increase the initial setting time of cement paste in concrete ANSWER DOWNLOAD EXAMIANS APP
Building Materials The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called Cementation process Crucible process Bessemer process Open hearth process Cementation process Crucible process Bessemer process Open hearth process ANSWER DOWNLOAD EXAMIANS APP
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