Time
Allowed: Three Hours maximum Marks: 200
Candidates should attempt Questions 1 and 5
which are compulsory and any THREE of the remaining questions, selecting at
least ONE question form each section. If any data is considered insufficient,
assume suitable values.
SECTION – B
5.
Answer any four of the following:
(a)
What are the relative advantages and
disadvantages of the proportional, integral and derivative control actions?
What are their characteristic effects on the closed loop response for a
process?
(b)
Explain briefly the essential elements of a computer
controlled process system.
(c)
What is reverse osmosis? How can it be used for
the separation of a solute from an aqueous solution?
(d)
What is molecular distillation? With a near
sketch describe the working of a molecular distillation unit.
(e)
Discuss how wind load is taken care of in the
design of a tall vertical vessel.
6.
(a) Illustrate the principle of separation of
gases by using non- porous membrane.
(b) Discuss about electrolytic regeneration of mixed bed ion exchange
resins.
(c) Explain the process of diffusion dialysis and mention its
allocations.
(d) What are absorption and extraction type separation processes?
Illustrate them with examples.
7.
(a) Discuss how to find the frequency response
of a proportional + integral controller.
(b) Explain how a strain gauge is used for pressure measurement.
(c) Illustrate the process of feed forward control.
(d) Write a relationship that will give the molar or specific enthalpy of
a multicomponent liquid at temperature T, with known composition for N
components. What are the principal control considerations that affect the scope
of mathematical modeling of a chemical process?
8.
(a) Illustrate the method for the design of a
conical head of a cylindrical pressure vessel.
(b) Discuss abut major loads and subsidiary loads that must be considered
for the design of a pressure vessel.
(c) What are skirt supports?
Discuss he method for calculating the thickness of a skirt support.
(d) Discuss the method for calculating the
thickness of the shell of a thin wall pressure vessel.
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