Building Materials If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called Grey or foundry pig White or forge pig Bessemer pig Mottled pig Grey or foundry pig White or forge pig Bessemer pig Mottled pig ANSWER DOWNLOAD EXAMIANS APP
Building Materials Acrylic sheets Possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness Possess the light transmission rate of 93% Are generally unaffected by most household detergents All of these Possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness Possess the light transmission rate of 93% Are generally unaffected by most household detergents All of these 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 When a brick is immersed in water for 24 hours and then dried, if 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence No grey or white deposits appear on the surface, the brick is free from soluble salts All listed here 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence No grey or white deposits appear on the surface, the brick is free from soluble salts All listed here 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence ANSWER DOWNLOAD EXAMIANS APP
Building Materials The initial setting time of lime-pozzolana, is 120 minutes 30 minutes 60 minutes 90 minutes 120 minutes 30 minutes 60 minutes 90 minutes ANSWER DOWNLOAD EXAMIANS APP
Building Materials The basic purpose of a retarder in concrete is To decrease the initial setting time of cement paste in concrete To increase the initial setting time of cement paste in concrete To render the concrete more water tight To improve the workability of concrete mix To decrease the initial setting time of cement paste in concrete To increase the initial setting time of cement paste in concrete To render the concrete more water tight To improve the workability of concrete mix ANSWER DOWNLOAD EXAMIANS APP