Building Materials The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to Grey cast iron Toughed cast iron White cast iron Mottled cast iron Grey cast iron Toughed cast iron White cast iron Mottled cast iron ANSWER DOWNLOAD EXAMIANS APP
Building Materials The percentage of alumina and silica in good fire clay vary respectively is All of these 30, 70 35, 65 25, 75 All of these 30, 70 35, 65 25, 75 ANSWER DOWNLOAD EXAMIANS APP
Building Materials Asphalt is obtained from Petroleum distillation Plastic distillation None of these Bitumen distillation Petroleum distillation Plastic distillation None of these Bitumen distillation ANSWER DOWNLOAD EXAMIANS APP
Building Materials Second class bricks Are under burnt Are well burnt Are of dark brown color Produce a metallic sound when struck Are under burnt Are well burnt Are of dark brown color Produce a metallic sound when struck ANSWER DOWNLOAD EXAMIANS APP
Building Materials Bitumen emulsion is Used as anti-corrosive paint A paint A liquid containing bitumen in suspension All listed here Used as anti-corrosive paint A paint A liquid containing bitumen in suspension All listed here ANSWER DOWNLOAD EXAMIANS APP
Building Materials The compound of Portland cement which reacts immediately with water and also sets first is Tri-calcium aluminate Tri-calcium silicate Di-calcium silicate Tetra calcium alumino ferrite Tri-calcium aluminate Tri-calcium silicate Di-calcium silicate Tetra calcium alumino ferrite ANSWER DOWNLOAD EXAMIANS APP
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