Civil engineering MCQ on Building Materials
Civil engineering MCQs on building materials with explanation | Basic civil engineering interview questions which were asked in various construction companies and government PWD, GATE, PSU civil engineering jobs interviews. Also get these civil engineering interview questions and answers pdf for free.
31. 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 40% ; lime 40% ; other ingredients 20%
silica 70% ; lime 20% ; other ingredients 10%.