Industrial Pharmacy Mid-term Exam

emulsions are thermodynamically unstable preparation of two ............................. liquids

• soluble

• miscible

• partially soluble

• immiscible

Example of w/o emulsion …………………………

• cold cream

• lotion

• vanishing cream

• none of these

Ratio of primary emulsion in case of Frobes Bottle method is ………………………..

• 3:2:1

• 2:2:1

• 4:2:1

• 2:2:2

Another name of Continental method is …………………………………

• wet gum method

• In situ soap method

• dry gum method

• frobes bottle method

Mechanism of working of mixers and millers is ………………

• trituraton

• lavigation

• agitation

• spatulation

maximum capacity of Silverson homogenizer is

• 9 litres

• 90 litres

• 900 litres

• 9000 litres

Emulsifying head is a part of ..................

• colloidal mill

• silverson homogenizer

• planetary mixer

• turbine mixer

which equipment works on the principle of shearing?

• planetary mixer

• roller mill

• end runner mill

• silverson homogenizer

rotar and stator are parts of ....................

• kneader mixer

• silverson homogenizer

• colloidal mill

• sigma arm mixer

Rotor runs at a speed of ............................... RPM

• 1000-10,000

• 2000-20,000

• 3000-30,000

• 3000-20,000