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) (iii) and (iv) (i) and (iv) (i) and (ii) (ii) and (iii) (iii) and (iv) (i) and (iv) (i) and (ii) 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 None of these 15 % 10 % 20 % None of these 15 % 10 % 20 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials The stones obtained by blasting are used as Aggregates for concrete Ballast in railways Road metal All listed here Aggregates for concrete Ballast in railways Road metal All listed here ANSWER DOWNLOAD EXAMIANS APP
Building Materials Good quality cement contains higher percentage of Di-calcium silicate Tri-calcium aluminate Tri-calcium silicate Tetra calcium alumino ferrite Di-calcium silicate Tri-calcium aluminate Tri-calcium silicate Tetra calcium alumino ferrite ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following sedimentary rocks changes into quartzite by metamorphic action? Shale Sand stone Gypsum Lime stone Shale Sand stone Gypsum Lime stone ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following cements contains maximum percentage of dicalcium silicate? Rapid hardening cement Ordinary Portland cement Sulphate resisting cement Low heat cement Rapid hardening cement Ordinary Portland cement Sulphate resisting cement Low heat cement ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS