Mcq's micromeritics

General basic MCQ's about Micrometitics use full in GAPAT exam

1. Mr. RAKESH TIWLE ASSISTANT PROFESSOR Shri Rawatpura Sarkar Institute of Pharmacy Behind Holiday Resort, Near Power Grid Corp., Kumhari, Durg, Chhattisgarh Email: [email protected] B-PHARMACY TOPIC: MICROMERITICS

2. One micrometer is equal to A. 10 -6 centimeter B. 10-3 centrimeter C. 10-6 meter D. 10-3 meter 2 . Which of the following properties of a particle significantly affects the physical, chemical and biological properties of the drug. A. Density B. Sedimentation C. Size D. Surface area. It is difficult to express the size of particles in a meaning full diameter. The reason is that the particle in a powder are A. Irregular in shape B. Irregular in surface C. Spherical shape D. Uniform in size

3. Which one of these distribution is more important in the design of dosage form. A. Gaussian B. Normal C. Number D. Weight 5. In the F&D of emulsion and suspension, at what type of diameter is important. Length number Projected Sieve D. Stoke’s 6. Sieving method is used for the size distribution analysis of powder because. Agglomerates can be identified Attrition of powder is possible C. Large nu of seives are required D. Tedious and time consuming

4. While using sedimentation method for the size analysis addition of a deflocculating agents to a suspension is necessary in order to. Accelerate the process of sedimentation B. Make the particle is spherical C. Prevents the aggregation D. Satisfy the Reynolds no. 8. Stoke’s law cannot be used, if Reynolds nu. Is more than 0.2 B. 1.8 C. 9.0 D. 18.0 9. Andresen apparatus consist of Balance B. Electrode C. Hydrometer D. Pipette.

5. 10. When coulter - current apparatus is employed for the powder analysis the following criterion is important Dispersion medium should be colored B. Dispersion medium should be conducting C. Suspended particle should be charge D. Suspended particle should be spherical. 11. For a spherical particle of diameter D p , Φ s  is ____From 20-50 A. B. 0.5 C. 1 D. 2 12. Which is smallest, Micrometer Millimeter Nanometer Catharometer

6. 13. Sedimentation rate can be decreased by …………. Particle size, Increase Decrease Unchanged None of above 14. Particle size can be reduced by, Mortar and pestle Sieve Grinder Both a and c 15.  Increase the particle size increase will be Absorption Distribution Both a and b None of above

7. 16. The porosity of a porous powder is defined as Bulk volume / void volume B. Voide volume /bulk volume C. Voide volume / true volume D. True volume / bulk volume 17. ……………..  Is the science and technology of small particles. Nanotechnology Micromeritics Molecular Chemistry None of above 18. The type of particle diameter that is obtain by microscope method of evaluation is. Projected B. Stoke’s Volume Volume – surface.

8. The term light as applied to pharmaceutical powders means Low bulk density B. Low granule density C. Low true density D. Slightly coloured 20. High angle of repose of the granule indicate Bulk density of the granule B. Porosity of the granule C. Roughness of the granule surface D. Smoothness of the granule surface. 1 –C 6-B 11-C 16-B 2-A 7-C 12-C 17-A 3- A 8 –A 13-B 18-A 4- D 9-D 14-D 19 –B 5- D 10-B 15-D 20-C

9. THANK FOR WATCHING