JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Pharmacy II Year PHARMACEUTICAL ENGINEERING Previous Question Paper (April - 2023 - R17)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Differentiate liquid mixing and semisolid mixing.
Answer
Liquid mixing involves the blending of miscible or immiscible liquids to achieve homogeneity, primarily driven by convection and turbulence. Semisolid mixing involves high-viscosity materials, requiring high shear forces to overcome internal resistance and ensure uniform distribution of components.
Write about merits and demerits of Sieve Shaker.
Answer
Merits: It provides rapid, reproducible, and standardized particle size analysis with minimal operator intervention. Demerits: It is prone to mechanical wear, can cause particle attrition (breakage) due to vibration, and is unsuitable for extremely fine or cohesive powders that may clog the sieve apertures.
Define and express heat transfer by conduction.
Answer
Sign in to view the complete answer paper.
What are the advantages of multiple effect evaporators?
Answer
Sign in to view the complete answer paper.
Write about applications of Equilibrium moisture content.
Answer
Sign in to view the complete answer paper.
Draw a humidity chart and give its significance.
Answer
Sign in to view the complete answer paper.
Write two pharmaceutical applications of centrifugal sedimentation.
Answer
Sign in to view the complete answer paper.
Give applications, merits and demerits of Meta filter.
Answer
Sign in to view the complete answer paper.
Enlist the properties of materials considered in selection of materials of construction.
Answer
Sign in to view the complete answer paper.
Write about the types of glass used in pharmaceutical industry.
Answer
Sign in to view the complete answer paper.
Part B
With neat labelled diagram, explain the principle, construction, working and uses of double cone blender.
Answer
Sign in to view the complete answer paper.
What are the objectives of size reduction? Describe construction and working of a ball mill.
Answer
Sign in to view the complete answer paper.
Discuss the factors influencing evaporation.
Answer
Sign in to view the complete answer paper.
Describe the principle construction and working of Forced circulation evaporator.
Answer
Sign in to view the complete answer paper.
Give a sketch and explain construction of multipass shell and tube heat exchanger. Enumerate its advantages over single pass heat exchanger.
Answer
Sign in to view the complete answer paper.
Add a note on heat transfer by convection.
Answer
Sign in to view the complete answer paper.
Explain the construction and operational details of freeze dryer. Describe its applications in pharmacy.
Answer
Sign in to view the complete answer paper.
Define Distillation. Explain the principle and methodology involved in steam distillation and molecular distillation.
Answer
Sign in to view the complete answer paper.
Differentiate between Membrane filters and Cartridge filters.
Answer
Sign in to view the complete answer paper.
Write the Merits and demerits of plate and frame press.
Answer
Sign in to view the complete answer paper.
Write short note on:
Basket centrifuge
Answer
Sign in to view the complete answer paper.
Tubular bowl centrifuge.
Answer
Sign in to view the complete answer paper.
Describe various types of corrosion with their causes, and precaution to be taken to avoid such problems in pharmaceutical industries.
Answer
Sign in to view the complete answer paper.
Write the objectives and applications of Material handling systems.
Answer
Sign in to view the complete answer paper.
Write about construction and working of Screw conveyor?
Answer
Sign in to view the complete answer paper.