Building Materials Gypsum consists of H₂S and CO₂ Lime and H₂O CO₂ and calcium CaSO4 and H₂O H₂S and CO₂ Lime and H₂O CO₂ and calcium CaSO4 and H₂O ANSWER DOWNLOAD EXAMIANS APP
Building Materials Brass is an alloy of Zinc and nickel Zinc and lead Tin and silver Copper and zinc Zinc and nickel Zinc and lead Tin and silver Copper and zinc ANSWER DOWNLOAD EXAMIANS APP
Building Materials Sand stone is Volcanic rock Sedimentary rock Metamorphic rock Igneous rock Volcanic rock Sedimentary rock Metamorphic rock Igneous rock ANSWER DOWNLOAD EXAMIANS APP
Building Materials For the manufacture of Portland cement, the proportions of raw materials used, are Lime 63% ; silica 22% ; other ingredients 15% Silica 70% ; lime 20% ; other ingredients 10% Lime 22% ; silica 63% ; other ingredients 15% Silica 40% ; lime 40% ; other ingredients 20% Lime 63% ; silica 22% ; other ingredients 15% Silica 70% ; lime 20% ; other ingredients 10% Lime 22% ; silica 63% ; other ingredients 15% Silica 40% ; lime 40% ; other ingredients 20% ANSWER DOWNLOAD EXAMIANS APP
Building Materials A ferrous metal is Cast iron Steel Wrought iron All of these Cast iron Steel Wrought iron All of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials Iron ore may contain Silicon Carbon All listed here Phosphorus and manganese Silicon Carbon All listed here Phosphorus and manganese ANSWER DOWNLOAD EXAMIANS APP
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