Seat No.: Enrolment No.
GUJARAT TECHNOLOGICAL UNIVERSITY
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B.PHARM - SEMESTER - 1- EXAMINATION -WINTER - 2018Subject Code:2210001 Date: 01/01/2019
Subject Name: Unit Operation-I
Time:10:30 AM TO 01:30 PM Total Marks: 80
Instructions:
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- Attempt any five questions.
- Make Suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
Q.1 (a) Explain the mechanisms of size reduction. 06
(b) Give principle and construction of hammer mill. 05
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(c) Discuss importance of correct speed in operation of ball mill and write disadvantages of ball mill. 05Q.2 (a) What is screening of powders? Write grades of powder in brief according to IP. 06
(b) Discuss principle, working, advantages and disadvantages of the sieve shaker machine. 05
(c) Give major applications of size reduction of drug substances. 05
Q.3 (a) Write a short note on cyclone separator. 06
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(b) Explain term mixing and give mechanisms of mixing in solids. 05(c) Discuss the factors affecting mixing of solids. 05
Q.4 (a) Explain construction, advantages, disadvantages and applications of double cone blender. 06
(b) Write a note on planetary mixer. 05
(c) Explain the term crystallization and give it’s major applications. 05
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Q.5 (a) Describe theory of crystallization in brief. 06
(b) Draw Mier’s Solubility Curve and explain it in brief. 05
(c) Write a brief note on Krystal crystallizer. 05
Q.6 (a) Give theory and types of extraction. 06
(b) Write in brief on super critical fluid extraction. 05
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(c) Discuss elements of automatic process control systems in brief. 05Q.7 (a) Enumerate various process variables and write measurement of any one of them in automated process. 06
(b) Discuss the chemical hazards and its prevention in pharmaceutical industries. 05
(c) Discuss waste water management system in industries. 05
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This download link is referred from the post: GTU B.Pharm 2018 Winter Question Papers || Gujarat Technological University
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