Building Materials For the manufacture of Portland cement, the proportions of raw materials used, are Lime 22% ; silica 63% ; other ingredients 15% Lime 63% ; silica 22% ; other ingredients 15% Silica 40% ; lime 40% ; other ingredients 20% Silica 70% ; lime 20% ; other ingredients 10% Lime 22% ; silica 63% ; other ingredients 15% Lime 63% ; silica 22% ; other ingredients 15% Silica 40% ; lime 40% ; other ingredients 20% Silica 70% ; lime 20% ; other ingredients 10% ANSWER DOWNLOAD EXAMIANS APP
Building Materials The hardest rock is Diamond Quartz Talc Marble Diamond Quartz Talc Marble ANSWER DOWNLOAD EXAMIANS APP
Building Materials Permanent magnets are made of high carbon steel and 20% of cobalt 35% of cobalt 15% of cobalt 45% of cobalt 20% of cobalt 35% of cobalt 15% of cobalt 45% of cobalt ANSWER DOWNLOAD EXAMIANS APP
Building Materials Asbestos cement All of these Warps due to changes in humidity Is brittle Strength is lowered when saturated by water All of these Warps due to changes in humidity Is brittle Strength is lowered when saturated by water 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: Lime Iron-oxide Magnesia Alumina Lime Iron-oxide Magnesia Alumina ANSWER DOWNLOAD EXAMIANS APP
Building Materials Spirit varnish generally consists of Pigment and synthetic resin Oil, wax and resin Alcohol, wax and turpentine Spirit and shellac Pigment and synthetic resin Oil, wax and resin Alcohol, wax and turpentine Spirit and shellac ANSWER DOWNLOAD EXAMIANS APP
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