Building Materials The slag which floats on the surface of the molten iron generally contains Silica (SiO2) 35% Lime (CaO) 45% Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% All listed here Silica (SiO2) 35% Lime (CaO) 45% Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% All listed here ANSWER DOWNLOAD EXAMIANS APP
Building Materials Cast iron is used for Structural works in beams Columns and struts None to these Small sized water pipes Structural works in beams Columns and struts None to these Small sized water pipes ANSWER DOWNLOAD EXAMIANS APP
Building Materials Advantage of a clamp compared to a kiln for burning bricks is that It is suitable when bricks are required in large numbers It has less initial cost It gives more output of first class bricks It takes less time for burning It is suitable when bricks are required in large numbers It has less initial cost It gives more output of first class bricks It takes less time for burning ANSWER DOWNLOAD EXAMIANS APP
Building Materials The main ingredients of Portland cement are Lime and iron Lime and silica Silica and alumina Lime and alumina Lime and iron Lime and silica Silica and alumina Lime and alumina ANSWER DOWNLOAD EXAMIANS APP
Building Materials The basic purpose of a retarder in concrete is To increase the initial setting time of cement paste in concrete To decrease the initial setting time of cement paste in concrete To render the concrete more water tight To improve the workability of concrete mix To increase the initial setting time of cement paste in concrete To decrease 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
Building Materials The weight of a good quality brick when immersed in water for a period of 16 hours should not exceed the weight of dry brick 10 % None of these 20 % 15 % 10 % None of these 20 % 15 % ANSWER DOWNLOAD EXAMIANS APP
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