Building Materials The percentage of alumina and silica in good fire clay vary respectively is 25, 75 35, 65 All of these 30, 70 25, 75 35, 65 All of these 30, 70 ANSWER DOWNLOAD EXAMIANS APP
Building Materials A good quality stone absorbs water less than 5 % 25 % 10 % 15 % 5 % 25 % 10 % 15 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials The rocks in which argil (or clay) predominates, are called Argillaceous rocks Siliceous rocks Calcareous rocks Igneous rocks Argillaceous rocks Siliceous rocks Calcareous rocks Igneous rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials Gypsum consists of CaSO4 and H₂O Lime and H₂O H₂S and CO₂ CO₂ and calcium CaSO4 and H₂O Lime and H₂O H₂S and CO₂ CO₂ and calcium ANSWER DOWNLOAD EXAMIANS APP
Building Materials The commonly used base for iron and steel work, is White lead Red lead Zinc white Titanium white White lead Red lead Zinc white Titanium white ANSWER DOWNLOAD EXAMIANS APP
Building Materials The hardest rock is Talc Quartz Marble Diamond Talc Quartz Marble Diamond ANSWER DOWNLOAD EXAMIANS APP
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