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Exam Details

Chemical Engineering (CH) 2010

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Questions 65
Duration 180 mins
Package Chemical Engineering (CH) - Previous Year Papers

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Difficulty distribution

Easy 65 100%

Question type distribution

Multiple Choices 65 100%

Instructions

Chemical Engineering (CH) 2010 – Instructions
  • Total number of questions: 65
  • 30 questions carry one mark each
  • 35 questions carry two marks each
  • Negative marking: 1/3 of the marks allotted to the question
  • Use of calculator is allowed
  • This is a proctored examination
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Syllabus

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Sample questions from this paper

Questions are selected across the paper subjects wherever the paper contains that variety.

1
2010 · Unclassified
Chemical Engineering (CH) 2010
Q.1 – Q.25 carry one mark each.

The critical speed (revolutions per unit time) of a ball mill of radius R, which uses balls of radius r, is

A
1 / (2π) √(g / R - r)
B
1 / (2π) √(g / R)
C
1 / (2π) √(g / r)
D
1 / (2π) √(g / R - r)
2
2010 · Unclassified
Chemical Engineering (CH) 2010

The ratio of Nusselt number to Biot number is

A
Conductive resistance of fluid / conductive resistance of solid
B
Conductive resistance of fluid / convective resistance of fluid
C
Conductive resistance of solid / conductive resistance of fluid
D
Unity
3
2010 · Unclassified
Chemical Engineering (CH) 2010

The ratio of the thermal boundary layer thickness to the concentration boundary layer thickness is proportional to

A
Nu
B
Le
C
Sh
D
Pr
4
2010 · Unclassified
Chemical Engineering (CH) 2010

For a first order isothermal catalytic reaction, A → P, occurring in an infinitely long cylindrical pore, the relationship between effectiveness factor, ε, and Thiele modulus, φ, is

A
ε = 1 / ϕ²
B
ε = ϕ
C
ε = 1
D
ε = 1 / ϕ
5
2010 · Unclassified
Chemical Engineering (CH) 2010

Match the location of the poles/zeros in the s-plane, listed in GROUP I, with the system response characteristics in GROUP II.

GROUP IGROUP II
P. Pole in the right half planeI. Stable response
Q. Pole at originII. Integrating response
R. Zero in the right half planeIII. Unstable response
IV. Inverse response
A
P - I, Q - II, R - III
B
P - III, Q - IV, R - I
C
P - III, Q - II, R - IV
D
P - I, Q - IV, R - III
6
2010 · Unclassified
Chemical Engineering (CH) 2010

Which ONE of the following statements about baffles in a shell and tube heat exchanger is FALSE? Baffles

A
Act as a support to the tube bundle
B
Reduce the pressure drop on the shell-side
C
Alter the shell-side flow pattern
D
Help in increasing the shell-side heat transfer coefficient