Building Materials When a brick is immersed in water for 24 hours and then dried, if 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 All listed here 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence 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 All listed here 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence ANSWER DOWNLOAD EXAMIANS APP
Building Materials To retard the initial setting time of cement, the compound responsible, is Gypsum Tri-calcium silicate Tri-calcium aluminate Di-calcium silicate Gypsum Tri-calcium silicate Tri-calcium aluminate Di-calcium silicate 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: Magnesia Iron-oxide Lime Alumina Magnesia Iron-oxide Lime Alumina ANSWER DOWNLOAD EXAMIANS APP
Building Materials The vehicle used in case of enamel paints is usually Varnish Linseed oil None of these Water Varnish Linseed oil None of these Water ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following stone is best suited for construction of piers and abutments of a railway bridge? Lime stone Granite Sand stone Quartzite Lime stone Granite Sand stone Quartzite ANSWER DOWNLOAD EXAMIANS APP
Building Materials Ultimate strength to cement is provided by Tri-calcium silicate Tetra calcium alumino ferrite Di-calcium silicate Tri-calcium aluminate Tri-calcium silicate Tetra calcium alumino ferrite Di-calcium silicate Tri-calcium aluminate ANSWER DOWNLOAD EXAMIANS APP
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