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


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