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Q. |
For a laminar flow of fluid in a circular tube, 'h1' is the convective heat transfer co-efficient at velocity 'V1'. If the velocity is reduced by half and assuming the fluid properties are constant, the new convective heat transfer co-efficient is |
A. | 1.26 h1 |
B. | 0.794 h1 |
C. | 0.574 h1 |
D. | 1.741 h1 |
Answer» B. 0.794 h1 |
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