Download GTU B.Pharma 2019 Winter 1st Sem 2210001 Unit Operation I Question Paper

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Seat No.: Enrolment No.

GUJARAT TECHNOLOGICAL UNIVERSITY

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Instructions:

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1. Attempt any five questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

1. (a) Explain mechanism involved in size reduction process. (06)
   (b) Explain factors affecting selection of methods of size reduction process (05)
   

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   (c) Write a note on Ball mill. (05)
2. (a) Draw neat labelled diagram of fluid energy mill and also write its advantages, disadvantages applications. (06)
   (b) Write a note on cyclone separator. (05)
   (c) Write a note on sedimentation tank used in size separation. (05)
3. (a) Give standards of sieves as per pharmacopeia. (06)
   

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   (b) Explain types of mixtures. (05)
   (c) Write a note on planetary mixer. (05)
4. (a) Explain theory of mixing process. (06)
   (b) Write a note on propeller mixer. (05)
   (c) Explain Mier’s supersaturation curve theory in detail. (05)

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5. (a) Explain various steps involved in crystallization process (06)
   (b) Discuss the factors affecting caking of crystal. (05)
   (c) Write applications of crystallization process. (05)
6. (a) Explain theory of extraction process. (06)
   (b) Write a note on various solvents used in extraction process. (05)
   

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   (c) Discuss Soxhlet extractor for continuous hot extraction. (05)
7. (a) Enlist the types of extraction process and explain any two in brief. (06)
   (b) Discuss prevention of fire hazards. (05)
   (c) Define (1) Hazard (2) Accident (3) Process (4) Control (5) Instrumentation (05)

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