Download RTMNU B.Pharma 4th Semester 2017 Summer Pharmaceutics 4 (Unit Operations) Question Paper

Download RTMNU (Rashtrasant Tukadoji Maharaj Nagpur University) B.Pharma (Bachelor of Pharmacy) 4th Semester 2017 Summer Pharmaceutics 4 (Unit Operations) Question Paper

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B.Pharm (Fourth Semester) (C.B.S.) Examination
PHARMACEUTICS?IV
(Unit Operations)
Paper?l
Time : Three Hours] [Maximum Marks : 80
NB. :? (1) Question No. 1 is compulsory.
(2) Solve any four questions from the remaining.
(3) Draw neat labeled diagram wherever necessary.
1. Solve any ?ve of the following :
(a)
(b)
(C)
(d)
(e)
(i)
(g)
2. (a)
(b)
(b)
Mention various factors in?uencing corrosion.
Draw a well labelled diagram of a Spray Dryer. Mention advantages of it.
Enlist various refrigerants. Draw a refrigeration cycle.
Differentiate between Swenson Walker crystallizer and vacuum crystallizer.
Give classi?cation of dryers.
Draw a well labelled diagram of multiple effect evaporator.
State and explain Raoult?s law and Henry?s law. 5X4=20
De?ne :
(i) Humidity
(ii) Dew point
(iii) Wet bulb temp.
Give principle, working and construction of a Humidi?er. 8
Explain various stages of crystallization and Mier?s super saturation theory. 7
De?ne the terms :
(i) Equilibrium moisture content
(ii) Critical Moisture content.
Give construction, working and well labelled diagram of a Fluidized Bed Dryer. 8
Give various mechanisms of Heat transfer. Derive the equation for rate of Heat transfer. 7
NXO?20307 1 (Contd)

(b)
(b)
(b)
(b)
Explain the term Fractional Distillation, giving example. Give various types of fractionating columns.
7
Discuss factors affecting evaporation. Draw a well labelled diagram of Forced circulation evaporator.
8
What do you know about Heat exchangers and Heat interchangers ? Draw a well labelled
diagram of Shell and Tube evaporator. 8
Explain behaviour of solids on drying. Give principle of working and applications of Freeze
DIying. 7
Give mechanism of corrosion. Explain various ways to prevent corrosion. 8
Explain psychrometric charts. Give various methods of determination of Humidity. 7
Explain various methods of feeding of multiple effect evaporator. Give an account on economy
and capacity of multiple effect evaporators. 7
De?ne :
(i) Volatility
(ii) Relative volatility.
Give an account of Molecular Distillation. 8
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