Download RTMNU B.Pharma 4th Semester 2015 Winter Pharmaceutics 4 (Unit Operations) Question Paper

Download RTMNU (Rashtrasant Tukadoji Maharaj Nagpur University) B.Pharma (Bachelor of Pharmacy) 4th Semester 2015 Winter Pharmaceutics 4 (Unit Operations) Question Paper

NTK/KW/ 15 ? 6987
Fourth Semester Examination for the Degree
of Bachelor of Pharmacy
PHARMACEUTICS ? IV
(Unit Operations)
Time : Three Hours] [Max. Marks : 80
N.
B.
:(1) Question N0. 1 is Compulsory.
(2) Solve any four questions from the remaining.
(3) Draw neat labeled diagram wherever neces?
sary.
(4) Use of electronic calculator is permitted.
Solve any five :?
(a)
What is lyophilization ? Explain principle and
pharmaceutical applications.
(b) De?ne distillation. Explain how distilled water and
(C)
(d)
(e)
(f)
(g)
water for injection are prepared by distillation.
Explain the term crystal lattice, cryrtal habit and
cryrtal forms.
Define evaporation. Explain any four factors
affecting evaporation.
Define the terms relative humidity, dew point,
dry bulb and wet bulb temperature.
Explain the principle and working of spray dryer.
Explain the mechanism of heat ?ow. What is
black body and grey body ? 5X4=20
NTK/KW/ 15 ?6987 Contd.

(a)
(b)
(a)
(b)
(a)
What is functional distillation ? Explain
fractionating columns and general method for
fractional distillation. 8
Discuss principle, construction and working of
?uidized bed dryer with suitable diagram. 7
Classify evaporators. Describe principle, const-
ruction and working of forced circulation
evaporator. 8
Explain principle, construction and working of
Swenson Walker crystallizer. 7
What are heat exchangers and inter?changers.
Discuss tubular heater in detail. 8
(b) Discuss the Fourier?s law for conduction of heat
(a)
(b)
(a)
through a metal wall. 7
Define corrosion. Explain factors affecting
corrosion. State any four methods for its
prevention. 8
Give the classification of dryer with suitable
examples.
Add a note on critical and equilibrium moisture
content (CMC and EMC). 7
Explain Roult?s law and Dalton?s law and
molecular distillation process. 8
NTK/KW/ 15 ?6987 2 Contd.

7.
(b) Describe principle, construction and working of
climbing film evaporator. 7
(a) Explain the terms?humidification and dehumi-
dification. Give its principle and applications.
8
(b) Explain principle construction and working of
crystal crystallizer. 7
NTK/KW/IS ?6987 3 430