size separation and reduction

What is the primary goal of size reduction in pharmaceuticals?

• improve taste

• increase surface area

• change color

• decrease weight

Which equipment is best suited for the size reduction of thermolabile materials?

• ball mill

• hammer mill

• fluid energy mill

• colloid mill

Which size reduction theory focuses on the new surface area created?

• kicks theory

• bonds theory

• rittingers theory

Which equipment is most suitable for fibrous materials?

• ball mill

• cutter mill

• fluid energy mill

• roller mill

what is the principal operation of fluid energy mill?

• impact and attrition

• compression

• centrifugation

Which mechanism of size reduction involves applying force to compress the material between two surfaces?

• impact

• attrition

• compression

Which mechanism relies on high-speed collision between particles and the milling surface to break the material?

• impact

• cutting

• compression

• attrition

can size reduction apparatus used for mixing and dispersion other than reduction process.

• yes

• no

write any one mechanism of size separation?

which of the following are the mechanism of heat transfer?

• radiation

• convection

• conduction

• all of the above