Building Materials The compound of Portland cement which reacts immediately with water and also sets first is Tri-calcium silicate Tri-calcium aluminate Tetra calcium alumino ferrite Di-calcium silicate Tri-calcium silicate Tri-calcium aluminate Tetra calcium alumino ferrite Di-calcium silicate ANSWER DOWNLOAD EXAMIANS APP
Building Materials According to IS specifications, the compressive strength of ordinary Portland cement after three days should not be less than 16 MPa 7 MPa 11.5 MPa 21 MPa 16 MPa 7 MPa 11.5 MPa 21 MPa ANSWER DOWNLOAD EXAMIANS APP
Building Materials The yield strength and tensile strength of low carbon steel may be improved by the addition of Nickel Vanadium Chromium Manganese Nickel Vanadium Chromium Manganese ANSWER DOWNLOAD EXAMIANS APP
Building Materials When a brick is immersed in water for 24 hours and then dried, if All listed here No grey or white deposits appear on the surface, the brick is free from soluble salts 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence All listed here No grey or white deposits appear on the surface, the brick is free from soluble salts 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence ANSWER DOWNLOAD EXAMIANS APP
Building Materials The rock generally used for roofing, is Granite Pumice Basalt Slate Granite Pumice Basalt Slate 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 (iii) and (iv) (i) and (iv) (i) and (ii) (ii) and (iii) (iii) and (iv) (i) and (iv) (i) and (ii) (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
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