Building Materials The compound of Portland cement which reacts immediately with water and also sets first is Tri-calcium silicate Tetra calcium alumino ferrite Di-calcium silicate Tri-calcium aluminate Tri-calcium silicate Tetra calcium alumino ferrite Di-calcium silicate Tri-calcium aluminate ANSWER DOWNLOAD EXAMIANS APP
Building Materials Glazing of clay products, is done All listed here To protect them from corrosive action To protect them from atmospheric effect To improve their appearance All listed here To protect them from corrosive action To protect them from atmospheric effect To improve their appearance ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following bricks are used for lining of furnaces? Under-burnt bricks Refractory bricks Over-burnt bricks First class bricks Under-burnt bricks Refractory bricks Over-burnt bricks First class bricks ANSWER DOWNLOAD EXAMIANS APP
Building Materials Proper amount of entrained air in concrete results in(i) Better workability(ii) Better resistance to freezing and thawing(iii) Lesser workability(iv) Less resistance to freezing and thawing (i) and (iv) (iii) and (iv) (ii) and (iii) (i) and (ii) (i) and (iv) (iii) and (iv) (ii) and (iii) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials Crushing strength of a first class brick should not be less than 7.0 N/mm² 3.5 N/mm² 14.0 N/mm² 10.5 N/mm² 7.0 N/mm² 3.5 N/mm² 14.0 N/mm² 10.5 N/mm² ANSWER DOWNLOAD EXAMIANS APP
Building Materials A good brick earth should contain: All listed here About 20% to 30% of alumina Not more than 5% of lime About 50% to 60% of silica All listed here About 20% to 30% of alumina Not more than 5% of lime About 50% to 60% of silica ANSWER DOWNLOAD EXAMIANS APP
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