When the ratio of the Grashoff number and to the square of Reynolds nu – McqOptions

MCQOPTIONS

1.	When the ratio of the Grashoff number and to the square of Reynolds number is one, the dominant mechanism of heat transfer is
A.	free convection
B.	entry length problem in laminar forced conduction (developing thermal boundary layer)
C.	mixed convection (both free and forced)
D.	forced convection
Answer» D. forced convection

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