Which of the following is not an ultrafine grinder (colloid mill) ?

Related Mcqs:

At low Reynold’s number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5: Power number Re = ρ N D2/μ: Reynold’s number N is the impeller rotational speed, and D is the impeller diameter ?

A. Po ∝ Re-1.0 B. Po ∝ Re0.0 C. Po ∝ Re0.5 D. Po ∝ Re1.0...

Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator ?

A. Cresylic acid B. Copper sulphate C. Calcium carbonate D. Sodium carbonate...

Fluid energy mill comes in the category of________________?

A. Grinder B. Crusher C. Cutter D. Ultrafine grinder...

Specific surface area is the surface area of a unit _______________ of materials?

A. Weight B. Volume C. Either A. or B. D. Neither A. nor B....

Froth floatation is the most suitable for treating ____________________?

A. Iron ores B. Sulphide ores C. Quartzite D. None of these...