Building Materials When a brick is immersed in water for 24 hours and then dried, if All listed here 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 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence All listed here 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 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence ANSWER DOWNLOAD EXAMIANS APP
Building Materials Rocks formed due to alteration of original structure due to heat and excessive pressure are called Igneous rocks None of these Metamorphic rocks Sedimentary rocks Igneous rocks None of these Metamorphic rocks Sedimentary rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials Plastic bitumen is generally used for Crack fillings Road pavements Expansion joints None to these Crack fillings Road pavements Expansion joints None to these ANSWER DOWNLOAD EXAMIANS APP
Building Materials Cast iron is used for Structural works in beams None to these Small sized water pipes Columns and struts Structural works in beams None to these Small sized water pipes Columns and struts ANSWER DOWNLOAD EXAMIANS APP
Building Materials Pick up the polymineralic rock from the following: Pure gypsum Granite Magnesite Quartz sand Pure gypsum Granite Magnesite Quartz sand ANSWER DOWNLOAD EXAMIANS APP
Building Materials To give a brilliant finish, the type of varnish used, is Turpentine varnish Oil varnish Water varnish Spirit varnish Turpentine varnish Oil varnish Water varnish Spirit varnish ANSWER DOWNLOAD EXAMIANS APP
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