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
Building Materials Pick up the constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning, from the following: Iron-oxide Alumina Lime Magnesia Iron-oxide Alumina Lime Magnesia ANSWER DOWNLOAD EXAMIANS APP
Building Materials For a good building stone, its specific gravity should the greater than 3.7 2.5 2.3 2.7 3.7 2.5 2.3 2.7 ANSWER DOWNLOAD EXAMIANS APP
Building Materials A first class brick when immersed in cold water for 24 hours should not absorb water more than 25 % 20 % 22 % 15 % 25 % 20 % 22 % 15 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials The plywood Cannot be bent more easily than ordinary wood of same thickness Has greater impact resistance to blows than ordinary wood Has good strength along the panel only Can be spilt in the plane of the panel Cannot be bent more easily than ordinary wood of same thickness Has greater impact resistance to blows than ordinary wood Has good strength along the panel only Can be spilt in the plane of the panel ANSWER DOWNLOAD EXAMIANS APP
Building Materials Snowcrete is one of the patent forms of Enamel paints Cellulose paints Water proof cement paints Distempers Enamel paints Cellulose paints Water proof cement paints Distempers ANSWER DOWNLOAD EXAMIANS APP
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