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 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 ANSWER DOWNLOAD EXAMIANS APP
Building Materials The rocks formed by gradual deposition, are called Sedimentary rocks Igneous rocks None of these Metamorphic rocks Sedimentary rocks Igneous rocks None of these Metamorphic rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following stresses is used for identifying the quality of structural steel? Ultimate stress Yield stress Proof stress None of these Ultimate stress Yield stress Proof stress None of these ANSWER DOWNLOAD EXAMIANS APP
Building Materials The moisture content in a well seasoned timber is 10 % to 12 % 100 % 15 % to 20 % 4 % to 6 % 10 % to 12 % 100 % 15 % to 20 % 4 % to 6 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials Age of a tree may be ascertained by Number of annual rings Number of branches Radius of its stem Circumference of its stem Number of annual rings Number of branches Radius of its stem Circumference of its stem ANSWER DOWNLOAD EXAMIANS APP
Building Materials Galvanising means covering iron with a thin coat of Tin Zinc Glaze Coal tar Tin Zinc Glaze Coal tar ANSWER DOWNLOAD EXAMIANS APP
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