Building Materials When a brick is immersed in water for 24 hours and then dried, if All listed here 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence No grey or white deposits appear on the surface, the brick is free from soluble salts 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence All listed here 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence No grey or white deposits appear on the surface, the brick is free from soluble salts 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence ANSWER DOWNLOAD EXAMIANS APP
Building Materials Gneiss is obtained from Igneous rocks Metamorphic rocks Sedimentary rocks Sedimentary metamorphic rocks Igneous rocks Metamorphic rocks Sedimentary rocks Sedimentary metamorphic rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials Slate is formed by metamorphic action on Shale Granite Lime stone Sand stone Shale Granite Lime stone Sand stone ANSWER DOWNLOAD EXAMIANS APP
Building Materials A ferrous metal is Steel All of these Cast iron Wrought iron Steel All of these Cast iron Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Building Materials The variety of pig iron used for the manufacture of steel by Bessemer process, is Grey pig White forge pig Mottled pig Bessemer pig Grey pig White forge pig Mottled pig Bessemer pig ANSWER DOWNLOAD EXAMIANS APP
Building Materials Veneering means Carving out designs on timber planks Chemically treating timber planks Thin layer of superior wood glued to inferior wood Thick layer of superior wood glued to inferior wood Carving out designs on timber planks Chemically treating timber planks Thin layer of superior wood glued to inferior wood Thick layer of superior wood glued to inferior wood ANSWER DOWNLOAD EXAMIANS APP
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