Time allowed: Three
Horus maximum Marks: 200
Candidates should attempt questions 1 and 5 which hare
compulsory, and any THREE of the following questions selecting at least ONE
question from each section.
SECTION – A
1.
Answer any FOUR
of the following :
(a)
What is Bernoulli equation? Determine it for the
flow of a compressible fluid in a pipeline.
(b)
Discuss with the help of a sketch, the principle
of steam jet ejector for creating vacuum.
(c)
Explain the mechanism of heat transfer in
nucleate pool boiling of liquids.
(d)
Discuss penetration theory of mass transfer. How
does it differ from surface renewal theory?
(e)
Describe the construction and working of a
Swenson- Walker crystallizer.
2.
(a) Discuss differential and cumulative methods
of screen analysis.
(b)
Explain the construction and operations of a plate and frame filter press.
(c) What is area meter?
Explain its operation.
(d) Determine an expression for terminal velocity
of solid particles settling freely in a fluid stream. Modify the above
expression for the case of hindered settling.
3.
(a) Differentiate between free and forced convection.
Describe the procedure to calculate heat transfer coefficient under free
convection
(b) Explain effectiveness of
a heat exchanger. Obtain its expression for a parallel flow heat exchanger in
terms of NTU and capacity ratio.
(c) Discuss the effect of
boiling point elevation on the capacity of an evaporator.
(d) Define emissivity of a
body. How is it related to binary system?
4.
(a) Derive Rayleigh equation for differential
distillation of a binary system.
(b) Discuss pressure drop characteristics of
packed columns and explain the significance of flooding point.
(c) Explain the mechanism of moisture movement
during drying of a solid.
(d) Briefly explain the construction and
operation of a packed extractions tower.
No comments:
Post a Comment