Building Materials The percentage of alumina and silica in good fire clay vary respectively is 30, 70 35, 65 25, 75 All of these 30, 70 35, 65 25, 75 All of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials Pick up the synthetic resin from the following: Resorcinol resin Urea resin Phenolic resin All of these Resorcinol resin Urea resin Phenolic resin All of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials The percentage of alumina in a good brick earth lies between 20 to 30 % 70 to 80 % 50 to 60 % 5 to 10 % 20 to 30 % 70 to 80 % 50 to 60 % 5 to 10 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials The coefficient of hardness of stones used in road work should be greater than 17 15 12 10 17 15 12 10 ANSWER DOWNLOAD EXAMIANS APP
Building Materials Three basic raw materials which are needed in large quantities for production of steel are Iron ore, coal and sulphur Iron ore, coal and lime stone Iron ore, carbon and lime stone Iron ore, carbon and sulphur Iron ore, coal and sulphur Iron ore, coal and lime stone Iron ore, carbon and lime stone Iron ore, carbon and sulphur ANSWER DOWNLOAD EXAMIANS APP
Building Materials The moisture content in a well seasoned timber is 4 % to 6 % 10 % to 12 % 15 % to 20 % 100 % 4 % to 6 % 10 % to 12 % 15 % to 20 % 100 % ANSWER DOWNLOAD EXAMIANS APP