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1. |
In case of a shell and tube heat exchanger, the minimum shell thickness for carbon steel (inclusive of corrosion allowance) depends on shell diameter and is in the range of ________________ mm? |
A. | 3-5 |
B. | 5-11 |
C. | 8-15 |
D. | 12-18 |
Answer» C. 8-15 | |