JNTU
JNTU B.Pharmacy II PHARMACEUTICAL ENGINEERING Previous Question Paper (November/December - 2018 - R17)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.
Part A
Define size reduction and give its advantages.
Answer
Size reduction is the process of reducing large solid unit masses into smaller unit masses, coarse particles, or fine powders. Its advantages include increased surface area for faster dissolution and absorption, improved mixing uniformity, and enhanced extraction efficiency from crude drugs.
Give a note on Reynolds number along with its applications.
Answer
The Reynolds number (Re) is a dimensionless quantity used to predict flow patterns in fluid systems, defined as the ratio of inertial forces to viscous forces: Re = (D v ρ) / μ. It is used to distinguish between laminar flow (Re < 2100) and turbulent flow (Re > 4000), which is critical for designing heat exchangers, piping systems, and mixing equipment.
Give applications of crystallization.
Answer
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Define evaporation. Classify evaporators.
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Write a brief note on merits and demerits of tray dryer.
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Write a brief note on steam distillation.
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Write about types of filtrations.
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Give the application of centrifugation.
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Write a brief note on chemical hazards.
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Write a note on various types of corrosion.
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Part B
Give the principle ,construction, working and applications of Bag filter .
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Write in detail about Silverson emulsifier.
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Explain about Forced circulation Evaporator in detail.
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Give a note on Fouriers law along with application.
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Give the principle, construction, working and application of Spray dryer.
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Explain Fractional distillation in detail.
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Explain in detail about the objectives, applications and factors influencing filtration. Write a note on filter acids.
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Write a detailed note on the construction, working uses, merits and demerits of perforated basket centrifuge.
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Give a note on inorganic non-metals in detail.
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Define conveyor explain pneumatic conveyor in detail.
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