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1. |
_ A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter 'd'. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to$? |
A. | D0.8 |
B. | D-0.2 |
C. | D-1 |
D. | D-1.8 |
Answer» C. D-1 | |