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 (iv) (iii) and (iv) (i) and (ii) (ii) and (iii) (i) and (iv) (iii) and (iv) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials The tendency of a stone is, to split along: Fracture Cleavage Structure Texture Fracture Cleavage Structure Texture ANSWER DOWNLOAD EXAMIANS APP
Building Materials As per IS specifications, the maximum final setting time for ordinary Portland cement should be 30 minutes 6 hours 1 hour 10 hours 30 minutes 6 hours 1 hour 10 hours ANSWER DOWNLOAD EXAMIANS APP
Building Materials Pick up the compound responsible for early strength of cement from the following: Tri-calcium aluminate Tri-calcium silicate Di-calcium silicate Tetra-calcium alumino-ferrite Tri-calcium aluminate Tri-calcium silicate Di-calcium silicate Tetra-calcium alumino-ferrite ANSWER DOWNLOAD EXAMIANS APP
Building Materials Asbestos cement Is brittle Strength is lowered when saturated by water All of these Warps due to changes in humidity Is brittle Strength is lowered when saturated by water All of these Warps due to changes in humidity ANSWER DOWNLOAD EXAMIANS APP
Building Materials A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than 25 % 15 % 10 % 20 % 25 % 15 % 10 % 20 % ANSWER DOWNLOAD EXAMIANS APP
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