Building Materials Which of the following sedimentary rocks changes into quartzite by metamorphic action? Sand stone Lime stone Shale Gypsum Sand stone Lime stone Shale Gypsum ANSWER DOWNLOAD EXAMIANS APP
Building Materials For the manufacture of Portland cement, the proportions of raw materials used, are Lime 63% ; silica 22% ; other ingredients 15% Lime 22% ; silica 63% ; other ingredients 15% Silica 70% ; lime 20% ; other ingredients 10% Silica 40% ; lime 40% ; other ingredients 20% Lime 63% ; silica 22% ; other ingredients 15% Lime 22% ; silica 63% ; other ingredients 15% Silica 70% ; lime 20% ; other ingredients 10% Silica 40% ; lime 40% ; other ingredients 20% ANSWER DOWNLOAD EXAMIANS APP
Building Materials Quick lime is (i) Slow in setting (ii) Rapid in slacking (iii) Good in strength Both (ii) and (iii) Both (i) and (ii) Only (i) Only (ii) Both (ii) and (iii) Both (i) and (ii) Only (i) Only (ii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials The most important tool in brick laying for lifting and spreading mortar and for forming joints is Bolster Scutch Square Trowel Bolster Scutch Square Trowel ANSWER DOWNLOAD EXAMIANS APP
Building Materials A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than 15 % 25 % 10 % 20 % 15 % 25 % 10 % 20 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials The nominal size of the modular brick is 190 mm × 90 mm × 80 mm 200 mm × 100 mm × 100 mm 190 mm × 190 mm × 90 mm 200 mm × 200 mm × 100 mm 190 mm × 90 mm × 80 mm 200 mm × 100 mm × 100 mm 190 mm × 190 mm × 90 mm 200 mm × 200 mm × 100 mm ANSWER DOWNLOAD EXAMIANS APP
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