Building Materials Resins are Left behind on evaporation of oil Not soluble in water Used in varnishes Soluble in spirit Left behind on evaporation of oil Not soluble in water Used in varnishes Soluble in spirit ANSWER DOWNLOAD EXAMIANS APP
Building Materials The percentage of alumina in a good brick earth lies between 20 to 30 % 50 to 60 % 5 to 10 % 70 to 80 % 20 to 30 % 50 to 60 % 5 to 10 % 70 to 80 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials The normal consistency of ordinary Portland cement is about 40 % 10 % 30 % 20 % 40 % 10 % 30 % 20 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials Permanent magnets are made of high carbon steel and 45% of cobalt 15% of cobalt 20% of cobalt 35% of cobalt 45% of cobalt 15% of cobalt 20% of cobalt 35% of cobalt ANSWER DOWNLOAD EXAMIANS APP
Building Materials The term frog means A depression on a face of brick An apparatus to lift the stone Soaking brick in water Vertical joint in a brick work A depression on a face of brick An apparatus to lift the stone Soaking brick in water Vertical joint in a brick work ANSWER DOWNLOAD EXAMIANS APP
Building Materials The moisture content in a well seasoned timber is 4 % to 6 % 100 % 10 % to 12 % 15 % to 20 % 4 % to 6 % 100 % 10 % to 12 % 15 % to 20 % ANSWER DOWNLOAD EXAMIANS APP
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