Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 9 (Q.No. 43)
43.
Consider the following statements :
A good soil for making bricks should contain
1. about 30% alumina
2. about 10% lime nodules
3. a small quantity of iron oxides
4. about 15% magnesia.
Of these statements :
1 and 2 are correct
1 and 3 are correct
1, 3 and 4 are correct
2, 3 and 4 are correct
Answer: Option
Explanation:
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