Building Materials Clay and silt content in a good brick earth must be at least 20 % 50 % 40 % 30 % 20 % 50 % 40 % 30 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials To retard the initial setting time of cement, the compound responsible, is Gypsum Tri-calcium silicate Di-calcium silicate Tri-calcium aluminate Gypsum Tri-calcium silicate Di-calcium silicate Tri-calcium aluminate ANSWER DOWNLOAD EXAMIANS APP
Building Materials Turpentine oil is used in paints as Drier Vehicle Base Thinner Drier Vehicle Base Thinner ANSWER DOWNLOAD EXAMIANS APP
Building Materials Chlorite, a green colour mineral is mainly derived from the decomposition of Biotite All of these Hornblende Augite Biotite All of these Hornblende Augite ANSWER DOWNLOAD EXAMIANS APP
Building Materials Shingle is Decomposed laterite Crushed granite Water bound pebbles Air weathered rock Decomposed laterite Crushed granite Water bound pebbles Air weathered rock 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) (iii) and (iv) (i) and (iv) (ii) and (iii) (i) and (ii) (iii) and (iv) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
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