Building Materials When a brick is immersed in water for 24 hours and then dried, if 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 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 ANSWER DOWNLOAD EXAMIANS APP
Building Materials Quartzite is a Argillaceous rock Metamorphic rock Calcareous rock Siliceous rock Argillaceous rock Metamorphic rock Calcareous rock Siliceous rock ANSWER DOWNLOAD EXAMIANS APP
Building Materials The practical limit of moisture content achieved in air drying of timber is 25 % 15 % 5 % 35 % 25 % 15 % 5 % 35 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials Smith's test of stones is performed to find out The compressive strength of the stone The presence of soluble matter of stone The hardness of the stone The toughness of the stone The compressive strength of the stone The presence of soluble matter of stone The hardness of the stone The toughness of the stone ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following sedimentary rocks changes into quartzite by metamorphic action? Shale Lime stone Gypsum Sand stone Shale Lime stone Gypsum Sand stone ANSWER DOWNLOAD EXAMIANS APP
Building Materials Study the following statements. (i) Hydraulic lime is suitable for white washing, (ii) Fat lime is suitable for whitewashing, (iii) Hydraulic lime is suitable for making mortar, (iv) Fat lime is suitable for making mortar. (i) and (iv) (i) and (ii) (ii) and (iii) (iii) and (iv) (i) and (iv) (i) and (ii) (ii) and (iii) (iii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
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