Building Materials The percentage of alumina in a good brick earth lies between 5 to 10 % 20 to 30 % 50 to 60 % 70 to 80 % 5 to 10 % 20 to 30 % 50 to 60 % 70 to 80 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials Bitumen may be dissolved in Carbondioxide Sodium chloride Water Carbon disulphide Carbondioxide Sodium chloride Water Carbon disulphide ANSWER DOWNLOAD EXAMIANS APP
Building Materials Pick up the constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning, from the following: Magnesia Iron-oxide Alumina Lime Magnesia Iron-oxide Alumina Lime ANSWER DOWNLOAD EXAMIANS APP
Building Materials Hydraulic lime is obtained by Calcination of pure clay Adding water to quick lime Burning of kankar Burning of lime stone Calcination of pure clay Adding water to quick lime Burning of kankar Burning of lime stone ANSWER DOWNLOAD EXAMIANS APP
Building Materials Quick lime is(i) Slow in setting(ii) Rapid in slacking(iii) Good in strength Only (i) Only (ii) Both (i) and (ii) Both (ii) and (iii) Only (i) Only (ii) Both (i) and (ii) Both (ii) and (iii) 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 (ii) (i) and (iv) (ii) and (iii) (iii) and (iv) (i) and (ii) (i) and (iv) (ii) and (iii) (iii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
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