A 30% (by volume) suspension of spherical sand particles in a viscous – McqOptions

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1.	A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is_________________?
A.	0.90 μm/s
B.	1 μm/s
C.	22.1 μm/s
D.	0.02 μm/s
Answer» C. 22.1 μm/s

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