Pharmacy Practice MCQ- Size Reduction Mechanisms

Pharmacy Practice MCQ

Welcome to our ultimate guide on pharmacy practice MCQ! If you’re looking to sharpen your understanding or prepare for an exam, you’ve come to the right place. In this article, we’ve curated a comprehensive list of multiple-choice questions (MCQs) tailored for aspiring pharmacy students.

Our MCQs are designed to challenge your knowledge and provide a deeper understanding of the subject matter. Each question is crafted to reflect real-world scenarios and theoretical concepts, making it an excellent resource for both students and professionals in the pharmaceutical industry. Read following article of pharmaceutical engineering for your reference.

Size Reduction Mechanisms, Factors And Laws » PHARMACAREERS

What is the primary purpose of size reduction in pharmaceutical manufacturing?
- A. To increase the volume of materials
- B. To enhance the solubility and bioavailability of drugs
- C. To decrease the potency of drugs
- D. To change the color of the material
Which of the following is a common method of size reduction?
- A. Filtration
- B. Centrifugation
- C. Milling
- D. Sedimentation
What is the principle behind the hammer mill?
- A. Impact and attrition
- B. Compression and shear
- C. Filtration and absorption
- D. Sedimentation and decantation
What type of material is typically reduced in size using a ball mill?
- A. Liquids
- B. Powders
- C. Gases
- D. Tissues
Which factor does NOT affect the efficiency of size reduction?
- A. Hardness of the material
- B. Temperature of the environment
- C. Moisture content of the material
- D. Size and density of grinding media
What is the main advantage of using fluid energy mills?
- A. High efficiency and small particle size production
- B. Low operating cost
- C. Large particle size production
- D. Slow processing time
Which law relates the energy required for size reduction to the size reduction ratio?
- A. Fick’s law
- B. Bond’s law
- C. Henry’s law
- D. Raoult’s law
In size reduction, what does “attrition” refer to?
- A. Cutting by sharp edges
- B. Breaking by impact
- C. Rubbing action between surfaces
- D. Pressing by compression
Which equipment is used for cutting and slicing materials during size reduction?
- A. Ball mill
- B. Cutter mill
- C. Fluid energy mill
- D. Roller mill
What is the relationship between particle size and surface area?
- A. Larger particles have a smaller surface area
- B. Larger particles have a larger surface area
- C. Particle size and surface area are unrelated
- D. Smaller particles have a smaller surface area
What is the significance of the “work index” in size reduction?
- A. It measures the density of the material
- B. It indicates the energy required to reduce material size
- C. It determines the color of the material
- D. It affects the material’s solubility
What is the primary mechanism of size reduction in a roller mill?
- A. Impact
- B. Compression
- C. Attrition
- D. Cutting
Which size reduction equipment uses high-speed rotating blades?
- A. Ball mill
- B. Hammer mill
- C. Fluid energy mill
- D. Roller mill
What effect does moisture content have on size reduction?
- A. Increased moisture reduces efficiency
- B. Increased moisture improves efficiency
- C. Moisture content has no effect
- D. Increased moisture changes the color
What does “comminution” refer to in size reduction?
- A. Mixing of materials
- B. Separation of liquids
- C. Breaking down of solids
- D. Filtration of particles
Which law states that the energy required for size reduction is proportional to the new surface area generated?
- A. Kick’s law
- B. Rittinger’s law
- C. Bond’s law
- D. Fick’s law
What is the primary disadvantage of using ball mills?
- A. High energy consumption
- B. Low efficiency
- C. Limited size reduction capability
- D. High operating cost
What is “shear” in the context of size reduction?
- A. Force applied perpendicular to a surface
- B. Force applied parallel to a surface
- C. Force applied in a circular motion
- D. Force applied in an upward motion
Which factor influences the selection of size reduction equipment?
- A. Material hardness
- B. Desired particle size
- C. Moisture content
- D. All of the above
What is the primary purpose of using a pin mill?
- A. To cut materials into thin slices
- B. To grind and pulverize materials
- C. To mix and blend materials
- D. To filter and separate materials
How does particle size affect drug dissolution rates?
- A. Smaller particles dissolve more slowly
- B. Smaller particles dissolve more quickly
- C. Particle size does not affect dissolution rates
- D. Larger particles dissolve more quickly
What is the main function of grinding media in a ball mill?
- A. To cut materials
- B. To compress materials
- C. To impact and break materials
- D. To filter materials
Which size reduction equipment is ideal for producing fine powders?
- A. Hammer mill
- B. Ball mill
- C. Fluid energy mill
- D. Cutter mill
What is the role of sieves in size reduction?
- A. To measure particle size distribution
- B. To mix and blend materials
- C. To filter and separate liquids
- D. To increase particle size
Which size reduction method involves applying high pressure to materials?
- A. Cutting
- B. Shearing
- C. Compression
- D. Impact
What is the significance of particle size analysis in pharmaceutical manufacturing?
- A. To ensure uniformity of dosage forms
- B. To improve drug solubility and bioavailability
- C. To control the release rate of drugs
- D. All of the above
In size reduction, what is the effect of increasing the speed of rotating blades?
- A. Reduced particle size
- B. Increased particle size
- C. No effect on particle size
- D. Change in material color
Which law relates the energy required for size reduction to the initial and final particle sizes?
- A. Rittinger’s law
- B. Kick’s law
- C. Bond’s law
- D. Dalton’s law
What is the purpose of using an attrition mill?
- A. To cut and slice materials
- B. To grind materials by rubbing action
- C. To impact and break materials
- D. To compress and crush materials
How does the temperature of the environment affect size reduction processes?
- A. Higher temperatures improve efficiency
- B. Higher temperatures reduce efficiency
- C. Temperature has no effect
- D. Higher temperatures change material color

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