A pipe friction test shows that, over the range of speeds used for the test, the non-dimensional friction factor \['f'\] varies inversely with Reynolds Number. From this, one can conclude that the:

A pipe friction test shows that, over the range of speeds used for the

1.	A pipe friction test shows that, over the range of speeds used for the test, the non-dimensional friction factor \['f'\] varies inversely with Reynolds Number. From this, one can conclude that the:
A.	Fluid must be compressible
B.	Fluid must be ideal
C.	Pipe must be smooth
D.	Flow must be laminar
Answer» D. Flow must be laminar

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A pipe friction test shows that, over the range of speeds used for the test, the non-dimensional friction factor \['f'\] varies inversely with Reynolds Number. From this, one can conclude that the:

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