Building Materials Permanent magnets are made of high carbon steel and 45% of cobalt 20% of cobalt 15% of cobalt 35% of cobalt 45% of cobalt 20% of cobalt 15% of cobalt 35% of cobalt ANSWER DOWNLOAD EXAMIANS APP
Building Materials Forge pig may be converted to wrought iron by Shingling Refining Rolling Pudding Shingling Refining Rolling Pudding ANSWER DOWNLOAD EXAMIANS APP
Building Materials Good quality stones must Be durable Resist action of acids All of these Be free from clay Be durable Resist action of acids All of these Be free from clay ANSWER DOWNLOAD EXAMIANS APP
Building Materials When a brick is immersed in water for 24 hours and then dried, if 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence All listed here No grey or white deposits appear on the surface, the brick is free from soluble salts 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence All listed here No grey or white deposits appear on the surface, the brick is free from soluble salts 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence ANSWER DOWNLOAD EXAMIANS APP
Building Materials Number of bricks required for one cubic metre of brick masonry is 300 500 400 200 300 500 400 200 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 (i) and (ii) (ii) and (iii) (iii) and (iv) (i) and (iv) (i) and (ii) (ii) and (iii) (iii) and (iv) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
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