IFS Question Paper Chemical Engineering 2007. Question Papers
IFS Chemical Engineering 2007 PAPER - I
SECTION A
1. Answer any four of the following :
(10 × 4 = 40)
(a) Prove that the velocity profile in a laminar flow of a Newtonian fluid through a circular pipe
is a parabola.
(b) (i) Differentiate between differential and cumulative analysis to find the average size of
the sample.
(ii) Derive the expression for the critical speed of a ball mill. Mention the meanings of
symbols and their units clearly.
(c) Define humidification and dehumidification, Explain the working of a water cooling tower
with a neat diagram.
(d) Derive the relation between rate of heat transfer and resistances in series in a composite wall.
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