Chemical Engineering - Fluid Mechanics - Discussion

Discussion Forum : Fluid Mechanics - Section 7 (Q.No. 4)
Pick out the correct statement.
Fanning friction factor is inversely proportional to Reynolds number always.
The property of a randomly packed bed (with raschig rings) is given by the ratio of the total volume to the volume of voids in the bed.
Mach number in an incompressible fluid is always unity.
Mach number is given by the ratio of the speed of the fluid to that of sound in the fluid under conditions of flow.
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