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_________________?

Related Mcqs:

Pick out the wrong statement?

A. Cumulative analysis for determining surface area is preferred over differential analysis, because of the assumption that “all particles in a simple fraction equal in size” is not needed for cumulative analysis unlike differential analysis B. A gate diagram is a plot of cumulative percent by weight undersize vs. the reciprocal of diameter, in which … Pick out the wrong statement?Read More...

Rittinger’s number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger’s number of a material indicates its________________?

A. Easier grindability B. Poor grindability C. High power consumption in grinding D. None of these...

Size reduction of moulding powders, waxes, resins & gums are done in a _______________ mill?

A. Cage B. Hammer C. Both A. & B. D. Neither A. nor B....

To remove dirt from the flowing fluid, we use a ____________________?

A. Coagulant B. Gravity settler C. Strains D. Clarifier...

Ultra centrifuges are used for the separation of _____________ solid particles?

A. Coarse B. Fine C. Colloidal D. Dissolved...