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UPSC Prelims 1987 · World Geography · Countries, Rivers and Resources
Suitable site of a cement plant requires proximity to
- (a) Coal and iron
- (b) Limestone and manganese
- (c) Limestone and gypsum
- (d) Coal and gypsum
Show the answer and explanation
Answer: (c) Limestone and gypsum
Cement is limestone clinker ground with a little gypsum.
Why the others are wrong
(a) Coal and iron make steel.
(b) Manganese is for steel alloys.
(d) Leaves out limestone.
The trap
None.
🔒 Gypsum (≈5%) controls setting time. Rajasthan: largest gypsum producer.
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