Building Materials When a brick is immersed in water for 24 hours and then dried, if All listed here 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 No grey or white deposits appear on the surface, the brick is free from soluble salts All listed here 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 No grey or white deposits appear on the surface, the brick is free from soluble salts ANSWER DOWNLOAD EXAMIANS APP
Building Materials The rocks having alumina or clay as their major constituents are known as Siliceous rocks Sedimentary rocks Calcareous rocks Argillaceous rocks Siliceous rocks Sedimentary rocks Calcareous rocks Argillaceous rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials Bitumen felt Is used as damp proofing material All listed here Is made from bitumen and hessian fibres Is used as water proofing material Is used as damp proofing material All listed here Is made from bitumen and hessian fibres Is used as water proofing material ANSWER DOWNLOAD EXAMIANS APP
Building Materials Spalling hammer is used for Driving wooden headed chisels Carving of stones Rough dressing of stones Breaking small projection of stones Driving wooden headed chisels Carving of stones Rough dressing of stones Breaking small projection of stones ANSWER DOWNLOAD EXAMIANS APP
Building Materials Seasoning is Painting with sodium silicate A process of removing sap Creosoting Coating with tar Painting with sodium silicate A process of removing sap Creosoting Coating with tar ANSWER DOWNLOAD EXAMIANS APP
Building Materials The age of a tree can be known by examining Medullary rays Annular rings Heart wood Cambium layer Medullary rays Annular rings Heart wood Cambium layer ANSWER DOWNLOAD EXAMIANS APP
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