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

Related Mcqs:

Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are________________?

A. Carbonates B. Sulphates C. Silicates & phosphates D. Bi-carbonates...

Work index is the gross energy (kWh/tonne of feed) necessary to reduce a very large feed to such a size that 80% of product particles will pass through a 0.1 mm screen. The value of work index determined for wet grinding should be multiplied with ______________ to get the same for dry grinding?

A. 1.0 B. 0.5 C. 1.34 D. 4.34...

Feed size of ≥ 25 cms can be accepted by _______________________?

A. Ball mill B. Rod mill C. Fluid energy mill D. Jaw crusher...

Filtration rate through a filter cake is proportional to (where, S = filtering surface R = specific cake resistance μ = viscosity of the filtrate) ?

A. S B. 1/R C. 1/μ D. All A., B. & C....

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

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