Drying Pharmaceutical engineering MCQ with answers
Pharm Engg Chapterwise MCQ: UNIT-I MCQ * Flow of fluids * Size reduction * Size separation UNIT-II MCQ *Heat transfer *Distillation *Evaporation UNIT-III MCQ *Drying * Mixing UNIT-IV MCQ * Filtration * Centrifugation * UNIT-V MCQ Materials of construction * Corrosion
Drying is essential after one of the following unit operations
a. Crystallisation
b. Evaporation
c. Mixing
d. Size reduction
a. Crystallisation
b. Evaporation
c. Mixing
d. Size reduction
Answer: Crystallisation
For fixing the effective drying conditions, which processing factor is essential?
a. Height
b. Humidity
c. Pressure
d. Temperature
a. Height
b. Humidity
c. Pressure
d. Temperature
Answer: Humidity
At a given temperature and humidity, if the moisture content of a material is greater than equilibrium moisture content, then the following process takes place
a. Absorption
b. Adsorption
c. Desorption
d. Sorption
a. Absorption
b. Adsorption
c. Desorption
d. Sorption
Answer: Desorption
Fluidised bed dryer has one of the following advantages?
a. Attrition is not observed
b. Entire material is continuously exposed to a heat source
c. Fluffy mass is formed
d. Humidity can be increased
a. Attrition is not observed
b. Entire material is continuously exposed to a heat source
c. Fluffy mass is formed
d. Humidity can be increased
Answer: Entire material is continuously exposed to a heat source
Which one of the following dryer is known as lyophiliser?
a. Fluidised bed dryer
b. Freeze dryer
c. Spray dryer
d. Vacuum dryer
a. Fluidised bed dryer
b. Freeze dryer
c. Spray dryer
d. Vacuum dryer
Answer: Freeze dryer
Talc has EMC of practically equal to
a. High
b. One
c. Variable
d. Zero
a. High
b. One
c. Variable
d. Zero
Answer: Zero
Which equipment is used for drying methylcellulose?
a. Drum dryer
b. Spray dryer
c. Tray dryer
d. Vacuum dryer
a. Drum dryer
b. Spray dryer
c. Tray dryer
d. Vacuum dryer
Answer: Spray dryer
Migration of salts & solutes does not occur in one of the following equipment for drying
a. Freeze dryer
b. Spray dryer
c. Tray dryer
d. Vacuum dryer
a. Freeze dryer
b. Spray dryer
c. Tray dryer
d. Vacuum dryer
Answer: Freeze dryer
Which one of the following types of products is having an EMC of practically zero?
a. Non-porous & insoluble
b. Non-porous & soluble
c. Porous & insoluble
d. Porous & soluble
a. Non-porous & insoluble
b. Non-porous & soluble
c. Porous & insoluble
d. Porous & soluble
Answer: Non-porous & insoluble
Which product is not dried by a spray dryer?
a. Bacterial & viral cultures
b. Fruit juice
c. Lactose
d. Serum
a. Bacterial & viral cultures
b. Fruit juice
c. Lactose
d. Serum
Answer: Bacterial & viral cultures