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1. |
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. | .26 h₁ |
B. | .794 h₁ |
C. | .574 h₁ |
D. | .741 h₁ |
Answer» C. .574 h₁ | |