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) (ii) and (iii) (i) and (iv) (i) and (ii) (iii) and (iv) (ii) and (iii) (i) and (iv) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials Sandstone is a(i) Sedimentary rock(ii) Aqueous rock(iii) Siliceous rock Only (i) All (i), (ii) and (iii) Both (i) and (ii) Both (i) and (iii) Only (i) All (i), (ii) and (iii) Both (i) and (ii) Both (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials Rocks formed due to alteration of original structure due to heat and excessive pressure are called Metamorphic rocks Igneous rocks None of these Sedimentary rocks Metamorphic rocks Igneous rocks None of these Sedimentary rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials The percentage of alumina in a good brick earth lies between 50 to 60 % 20 to 30 % 70 to 80 % 5 to 10 % 50 to 60 % 20 to 30 % 70 to 80 % 5 to 10 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials The term frog means Vertical joint in a brick work A depression on a face of brick Soaking brick in water An apparatus to lift the stone Vertical joint in a brick work A depression on a face of brick Soaking brick in water An apparatus to lift the stone ANSWER DOWNLOAD EXAMIANS APP
Building Materials The age of a tree can be known by examining Annular rings Cambium layer Medullary rays Heart wood Annular rings Cambium layer Medullary rays Heart wood ANSWER DOWNLOAD EXAMIANS APP
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