For spheres, the surface shape factor is given by (where, A = area, V = volume, and D = diameter) ?

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Particle size range in which dust catcher (gravity settling chamber) works most effectively and efficiently is ______________ microns?

A. < 5 B. 10 to 25 C. < 74 D. > 1000...

During agitation of liquids, the_________________?

A. Froude number is independent for the curves between power number and Reynolds number in baffled system B. Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller C. Froude number is used to account for the effect of surface (e.g., the centre vortex) … During agitation of liquids, the_________________?Read More...

Reciprocal of sphericity is termed as the________________?

A. Specific surface ratio B. Shape factor C. Sauter diameter D. Surface area per unit mass...

_____________________ baffles are provided in ball mills ?

A. Horizontal B. No C. Only two D. None of these...

Filtration should be stopped in a filter press, if the_________________?

A. Cake becomes very dense B. Liquor stops flowing out to the discharge C. Filtration pressure rises suddenly D. Both B. & C....