CHEMICAL ENGINEERING | Mass Transfer

Which of the following provides maximum contact surface for a liquid-vapour system?

Byadmin August 29, 2022

Question: Which of the following provides maximum contact surface for a liquid-vapour system?
[A].

Packed tower

[B].

Bubble-cap plate column

[C].

Seive-plate column

[D].

Wetted wall column

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Heat Transfer

A multiple effect evaporator as compared to a single effect evaporator of the same capacity has

Question: A multiple effect evaporator as compared to a single effect evaporator of the same capacity has
[A].

lower heat transfer area.
[B].
lower steam economy.
[C].
higher steam economy.
[D].
higher solute concentration in the product.

Answer: Option C

Explanation:

No answer description available for this question.

Read More A multiple effect evaporator as compared to a single effect evaporator of the same capacity has
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

Number of degrees of freedom for a three phase system in equilibrium comprising of three non-reacting chemical species is

Question: Number of degrees of freedom for a three phase system in equilibrium comprising of three non-reacting chemical species is
[A].

2
[B].
0
[C].
1
[D].
3

Answer: Option A

Explanation:

No answer description available for this question.

Read More Number of degrees of freedom for a three phase system in equilibrium comprising of three non-reacting chemical species is
CHEMICAL ENGINEERING | Chemical Heat Transfer

Maximum heat transfer rate can be expected in case of_________?

Maximum heat transfer rate can be expected in case of_________?A. Laminar flow
B. Co-current flow
C. Turbulent flow
D. Heat flow rate is independent of nature of flow

Read More Maximum heat transfer rate can be expected in case of_________?
CHEMICAL ENGINEERING | Chemical Reaction Engineering

Helium-mercury method is used for the measurement of the __________ of the catalyst.

Question: Helium-mercury method is used for the measurement of the __________ of the catalyst.
[A].

surface area
[B].
porosity
[C].
pore volume
[D].
both (b) & (c).

Answer: Option D

Explanation:

No answer description available for this question.

Read More Helium-mercury method is used for the measurement of the __________ of the catalyst.
Mass Transfer

For a ternary mixture, in which equilateral triangular co-ordinate is used in leaching and extraction, a ____________ of the equilateral triangular co-ordinates?

For a ternary mixture, in which equilateral triangular co-ordinate is used in leaching and extraction, a ____________ of the equilateral triangular co-ordinates?

A. Binary mixture is represented by the apex
B. Binary mixture is represented by any point inside
C. Ternary mixture is represented by the sides
D. Pure component is represented by the apex

Read More For a ternary mixture, in which equilateral triangular co-ordinate is used in leaching and extraction, a ____________ of the equilateral triangular co-ordinates?
CHEMICAL ENGINEERING | Fluid Mechanics

Deformation drag, which is caused by widespread deformation of fluid around the immersed body

Question: Deformation drag, which is caused by widespread deformation of fluid around the immersed body
[A].

occurs when NRe is very small.
[B].
is primarily a friction drag.
[C].
is independent of body length.
[D].
depends mainly on cross-sectional shape.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Deformation drag, which is caused by widespread deformation of fluid around the immersed body

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