Dietus-Boelter equation used for the determination of heat transfer co

1.	Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid
A.	for fluids in laminar flow.
B.	for fluids in tubulent flow.
C.	when Grashhoff number is very important.
D.	for liquid metals.
Answer» C. when Grashhoff number is very important.

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Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid

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