Building Materials Which of the following represents a metamorphic rock? (i) Slate (ii) Shale (iii) Quartzite Both (ii) and (iii) Both (i) and (iii) All (i), (ii) and (iii) Only (iii) Both (ii) and (iii) Both (i) and (iii) All (i), (ii) and (iii) Only (iii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials Three basic raw materials which are needed in large quantities for production of steel are Iron ore, carbon and lime stone Iron ore, coal and sulphur Iron ore, coal and lime stone Iron ore, carbon and sulphur Iron ore, carbon and lime stone Iron ore, coal and sulphur Iron ore, coal and lime stone Iron ore, carbon and sulphur ANSWER DOWNLOAD EXAMIANS APP
Building Materials Pick up the compound responsible for early strength of cement from the following: Tri-calcium silicate Tetra-calcium alumino-ferrite Di-calcium silicate Tri-calcium aluminate Tri-calcium silicate Tetra-calcium alumino-ferrite Di-calcium silicate Tri-calcium aluminate 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 Crucible process Open hearth process Cementation process Bessemer process Crucible process Open hearth process Cementation process Bessemer process ANSWER DOWNLOAD EXAMIANS APP
Building Materials Cast iron contains carbon approximately 0.05% to 1.75% 0.250 % None to these 1.5% to 5.5% 0.05% to 1.75% 0.250 % None to these 1.5% to 5.5% ANSWER DOWNLOAD EXAMIANS APP
Building Materials Gneiss is obtained from Sedimentary metamorphic rocks Metamorphic rocks Sedimentary rocks Igneous rocks Sedimentary metamorphic rocks Metamorphic rocks Sedimentary rocks Igneous rocks ANSWER DOWNLOAD EXAMIANS APP
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