This download link is referred from the post: RTMNU B-Pharm Last 10 Years 2010-2020 Previous Question Papers || Rashtrasant Tukadoji Maharaj Nagpur University
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B. Pharm. Semester—III (C.B.S.) Examination
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PHARMACEUTICS–III (Unit Operations)
Paper-1
KNT/KW/16/6552
Time : Three Hours]
[Full Marks : 80
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N.B. :— (1) Question No. 1 is compulsory.
(2) Solve any FOUR questions from the remaining.
(3) Draw neat labeled diagram wherever necessary.
(4) Discuss the reaction, mechanism wherever necessary.
(5) Use of electronic calculator is permitted.
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(6) Assume suitable data wherever necessary.
1. Solve any FIVE of the following : 4×5=20
(a) Write the mechanisms of Filtration.
(b) Explain the factors influencing Mixing.
(c) What is Reynolds number ? Describe its importance.
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(d) Discuss the factors related to nature of raw materials which affects selection of mill for size reduction.
(e) Explain the various grades of powder and sieve number as per IP.
(f) Explain mechanisms of mixing in solids.
(g) Explain the term centrifugal effect. Write the criteria in the selection of type of centrifuge.
2. Explain various modes of size reduction. Discuss principle, construction and working of ball mill and fluid energy mill. 15
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3. Classify the methods for measurement of rate of flow of fluids. Explain venturimeter and rotameter in detail. 15
4. What do you mean by filter media and filter aids ? Classify filtration equipment. Discuss in detail filter press and meta filter. 15
5. Explain principle, construction and working of belt and screw conveyors. 15
6. (a) What is vortex formation and how it can be prevented in liquid mixing ? Classify mixing devices for liquids and explain propellers.
(b) Discuss principle, construction and working of double cone and ribbon blender. 15
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7. Write short notes (any THREE) : 5×3=15
(a) Centrifugal pumps.
(b) Mass transfer in turbulent and laminar flow.
(c) Bernoulli's theorem.
(d) Tubular bowl centrifuge.
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(e) Cyclone separator.
NWN-9222
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This download link is referred from the post: RTMNU B-Pharm Last 10 Years 2010-2020 Previous Question Papers || Rashtrasant Tukadoji Maharaj Nagpur University