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In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes | |
A. | are easier to clean. [Wrong Answer] |
B. | are less prone to fouling. [Wrong Answer] |
C. | can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less. [Correct Answer] |
D. | none of these. [Wrong Answer] |