_____________ heat exchanger is used for chilling oil to be dewaxed?
Correct answer: A. Double pipe
- A. Double pipe
- B. U-tube
- C. Fixed tube
- D. Floating head
Explanation
A double-pipe heat exchanger is commonly used for chilling oil during dewaxing because it provides a simple arrangement suitable for viscous fluids and relatively small processing rates. Fixed-tube and floating-head exchangers are more typical for larger duties.
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