Hamad Building Materials and Construction 16/04/2021 A. lime stone and alumina B. silica and alkalies C. alumina and iron D. alkalies and magnesium Related Mcqs: Which of the following trees yields hard wood ?A. deodar B. chir C. shishum D. pine... The initial setting time for ordinary Portland cement as per IS specifications should not be less than_____________?A. 10 minutes B. 30 minutes C. 60 minutes D. 600 minutes... Gypsum consists of______________?A. H2S and C02 B. CaS04 and H20 C. Lime and H20 D. C02 and calcium... In the construction of arches, sand box method is used for________________?A. centring B. actual laying of arch work C. striking of centring D. none of the above... Minimum width of landing should be_______________?A. equal to width of stairs B. half the width of stairs C. twice the width of stairs D. one fourth the width of stairs...
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