Building Materials According to ISI, bitumen is classified into 8 grades 2 grades 10 grades 4 grades 8 grades 2 grades 10 grades 4 grades ANSWER DOWNLOAD EXAMIANS APP
Building Materials Advantage of a clamp compared to a kiln for burning bricks is that It has less initial cost It is suitable when bricks are required in large numbers It takes less time for burning It gives more output of first class bricks It has less initial cost It is suitable when bricks are required in large numbers It takes less time for burning It gives more output of first class bricks ANSWER DOWNLOAD EXAMIANS APP
Building Materials Crushing strength of a first class brick should not be less than 14.0 N/mm² 7.0 N/mm² 10.5 N/mm² 3.5 N/mm² 14.0 N/mm² 7.0 N/mm² 10.5 N/mm² 3.5 N/mm² 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 (ii) and (iii) (i) and (ii) (i) and (iv) (iii) and (iv) (ii) and (iii) (i) and (ii) (i) and (iv) (iii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Building Materials The compound of Portland cement which contributes to the strength after two to three years is Tri-calcium silicate Tetra-calcium alumino ferrite Tri-calcium aluminate Di-calcium silicate Tri-calcium silicate Tetra-calcium alumino ferrite Tri-calcium aluminate Di-calcium silicate ANSWER DOWNLOAD EXAMIANS APP
Building Materials Gypsum consists of Lime and H₂O CO₂ and calcium H₂S and CO₂ CaSO4 and H₂O Lime and H₂O CO₂ and calcium H₂S and CO₂ CaSO4 and H₂O ANSWER DOWNLOAD EXAMIANS APP
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