Virtual Labs

Physical Sciences Physical Pharmaceutics II Experiments

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Determination of Bulk Density and Tapped Density of Pharmaceutical Powders Using Digital Bulk Density Apparatus

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1. Bulk density of a powder is defined as:

a: Mass of powder divided by its tapped volume Explanation

Explanation

b: Mass of powder divided by its bulk volume including interparticle voids Explanation

Explanation

c: Mass of powder divided by true volume of solid particles Explanation

Explanation

d: Volume of powder divided by its weight Explanation

Explanation

2. Tapped density is obtained by:

a: Pouring the powder freely into a cylinder Explanation

Explanation

b: Subjecting the powder to standardized mechanical tapping Explanation

Explanation

c: Compressing the powder under high pressure Explanation

Explanation

d: Heating the powder to remove air gaps Explanation

Explanation

3. The ratio of tapped density to bulk density is known as:

a: Carr’s Index Explanation

Explanation

b: Hausner Ratio Explanation

Explanation

c: Compressibility Index Explanation

Explanation

d: Flowability Coefficient Explanation

Explanation

4. Lower Hausner ratio and Carr’s index values indicate:

a: Poor flow Explanation

Explanation

b: Better flow properties Explanation

Explanation

c: No relation to flow Explanation

Explanation

d: Higher moisture content Explanation

Explanation

5. The digital bulk density apparatus is used to:

a: Measure the particle size Explanation

Explanation

b: Measure powder color Explanation

Explanation

c: Determine bulk and tapped densities of powders Explanation

Explanation

d: Determine true density of solids Explanation

Explanation

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