A sand mixture was screened through a standard 10-mesh screen. The mass fraction of the oversize material in feed, overflow and underflow were found to be 0.38, 0.79 and 0.22 respectively. The screen effectiveness based on the oversize is_________________?

Related Mcqs:

Separation of materials of the same density based on their sizes by using then-different rates of flow is called__________________?

A. Sorting B. Sizing C. Flocculation D. Elutriation...

Where the density difference of the two liquid phase to be separated is very small (as in milk cream separator), the most suitable separator is a____________________?

A. Disc bowl centrifuge B. Sharpies super-centrifuge C. Batch basket centrifuge D. Sparkler filter...

Which of the following is not used as a surface active agent in a flocculation operation ?

A. Sodium silicate B. Quartz C. Lime D. Alumina...

_______________ mixer is used for devulcanisation of rubber scrap & making water dispersion & rubber solution?

A. Tumbler B. Banbury C. Muller D. Ribbon blender...

The power number for a stirred tank becomes constant at high Reynolds number. In this limit, the variation of power input with impeller rotational speed (N) is proportional to___________________?

A. N° B. N1 C. N2 D. N3...