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

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

KNT/KW/16/6552
B. Pharm. Semester?III (C.B.S.) Examination
PHARMACEUTICS?III (Unit Operations)
Paper?l
Time : Three Hours] [F ull Marks : 80
NB. :? (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.
(6) Assume suitable data wherever necessary.
1. Solve any F IVE of the following :
(a) Write the mechanisms of F iltration.
(b) Explain the factors in?uencing Mixing.
(c) What is Reynolds number ? Describe its importance.
((1) 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.
(1) Explain mechanisms of mixing in solids. Classify equipment based on ?ow properties of powders.
(g) Explain the term centrifugal effect. Write the criteria in the selection of type of centrifuge.
4 X 5:20
2. Explain various modes of size reduction. Discuss principle, construction and working of ball mill and
?uid energy mill. 15
3. Classify the methods for measurement of rate of ?ow of ?uids. Explain venturimeter and rotameter in
detail. 15
4. What do you mean by ?lter media and ?lter aids ? Classify ?ltration equipment. Discuss in detail ?lter
press and meta filter. 15
5. Explain principle, construction and working of belt and screw conveyors. 15
6. (a) What is votex formation and how it can be prevented in liquid mixing ? Classify mixing devices
for liquids and explain propellors.
(b) Discuss principle, construction and working of double core and ribbon blender. 15
7. Write short notes (any THREE) :
(a) Centrifugal pumps.
(b) Mass transfer in turbulent and laminary ?ow.
(0) Bernoulli?s theorem.
((1) Tubular bowl centrifuge.
(e) Cyclone separator. 5 X 3:1 5
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