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Download RTMNU B.Pharma 3rd Semester 2016 Summer Pharmaceutics 3 (Unit Operations) Question Paper

Download RTMNU (Rashtrasant Tukadoji Maharaj Nagpur University) B.Pharma (Bachelor of Pharmacy) 3rd Semester 2016 Summer Pharmaceutics 3 (Unit Operations) Question Paper

This post was last modified on 19 January 2020

RTMNU B-Pharm Last 10 Years 2010-2020 Previous Question Papers || Rashtrasant Tukadoji Maharaj Nagpur University



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TKN/KS/16-6981


Third Semester Examination for the Degree

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of Bachelor of Pharmacy


PHARMACEUTICS – III (Unit Operations)


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Time: Three Hours ] [Max. Marks : 80


N. B. : (1) Question No.1 is Compulsory.


(2) Solve any Four questions from the remaining.

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(3) Draw neat labeled diagram wherever necessary.


(4) Discuss the reaction, mechanism wherever necessary.


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(5) Use of electronic calculator is permitted.


(6) Assume suitable data wherever necessary.



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  1. Solve any Five of the following :- 4x5=20

    1. Explain mechanisms of size reduction giving examples.

    2. Write short note on mechanisms of liquid mixing.
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    4. Draw well labeled diagram of belt conveyor. Give its principle.

    5. State Kozeny-Carman equation. Give its limitations.

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    7. Explain theory of centrifugation in brief.

    8. Give an account on various grades of powder as per I.P.

    9. Define Reynolds' number. State its significance.
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  2. Explain factors affecting size reduction. Describe principle, construction, working and uses of ball mill. Focus on effect of speed of rotation of ball mill efficiency.
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    1. What is mass transfer ? Comment on "Molecular diffusion in liquids and mass transfer, in turbulent and laminar flow." 8

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    3. Give detailed account on pneumatic conveyor. 7



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  5. What is cake filtration and clarification? Describe the factors affecting rate of filtration. Write detailed account on rotary drum filter and leaf filter. 15

  6. Give classification of equipments based on centrifugation. Elaborate on perforated basket centrifuge and supercentrifuge. 15


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    1. What is vortex formation ? What are the causes of vortex formation ? How vortex formation can be prevented ? 8

    2. Write a note on air jet mixer and jet mixer. 7

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  8. Write short notes (Any Three) 15

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    1. Orifice meter.

    2. Silverson mixer homogenizer.

    3. Cyclone separator.
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    5. Fluid energy mill.


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