Building Materials A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than 20 % 15 % 10 % 25 % 20 % 15 % 10 % 25 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials Proper amount of entrained air in concrete results in(i) Better workability(ii) Better resistance to freezing and thawing(iii) Lesser workability(iv) Less resistance to freezing and thawing (i) and (ii) (iii) and (iv) (i) and (iv) (ii) and (iii) (i) and (ii) (iii) and (iv) (i) and (iv) (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials The percentage of alumina and silica in good fire clay vary respectively is 35, 65 25, 75 All of these 30, 70 35, 65 25, 75 All of these 30, 70 ANSWER DOWNLOAD EXAMIANS APP
Building Materials First class timber has an average life of More than 10 years 1 to 5 years Less than one year 5 to 10 years More than 10 years 1 to 5 years Less than one year 5 to 10 years ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following represents a metamorphic rock?(i) Slate(ii) Shale(iii) Quartzite Both (i) and (iii) All (i), (ii) and (iii) Only (iii) Both (ii) and (iii) Both (i) and (iii) All (i), (ii) and (iii) Only (iii) Both (ii) and (iii) 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) Only (i) Both (i) and (ii) Only (ii) Both (ii) and (iii) Only (i) Both (i) and (ii) Only (ii) ANSWER DOWNLOAD EXAMIANS APP
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