Urea autoclave is made of_________________?
Correct answer: C. Stainless steel
- A. Cast iron
- B. Refractory blocks
- C. Stainless steel
- D. Lead lined steel
Explanation
Urea autoclaves handle hot, concentrated urea solutions that are highly corrosive, so stainless steel is selected for its corrosion resistance and mechanical strength. Cast iron and lead-lined steel cannot reliably withstand this service.
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