Question 1

It is not recommended to use a 1-2 shell and tube heat exchanger for a particular heat duty, whenever the LMTD correction factor is

Accepted Answer

A) > 0.75 B) < 0.75 C) < 0.50 D) < 0.25 A) > 0.75 B) < 0.75 C) < 0.50 D) < 0.25

Question 2

Pick out the wrong statement.

Accepted Answer

A) The emissivity of a surface decreases, if it gets corroded by atmospheric environment 
B) The emissivity of a surface increases with increase in surface roughness 
C) The emissivity of a polished surface is quite low 
D) The emissivity of a non-metallic surface decreases with increase in the temperature 
A) The emissivity of a surface decreases, if it gets corroded by atmospheric environment 
B) The emissivity of a surface increases with increase in surface roughness 
C) The emissivity of a polished surface is quite low 
D) The emissivity of a non-metallic surface decreases with increase in the temperature

Question 3

Finned tube heat exchangers

Accepted Answer

A) Give larger area per tube 
B) Use metal fins of low thermal conductivity 
C) Facilitate very large temperature drop through tube wall 
D) Are used for smaller heat load 
A) Give larger area per tube 
B) Use metal fins of low thermal conductivity 
C) Facilitate very large temperature drop through tube wall 
D) Are used for smaller heat load

Question 4

Stefan's block body radiation law can also be derived from __________ law.

Accepted Answer

A) Kirchoff's 
B) Planck's 
C) Fourier's 
D) None of these 
A) Kirchoff's 
B) Planck's 
C) Fourier's 
D) None of these

Question 5

In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is

Accepted Answer

A) Linear 
B) Hyperbolic 
C) Parabolic 
D) None of these 
A) Linear 
B) Hyperbolic 
C) Parabolic 
D) None of these

It is not recommended to use a 1-2 shell and tube heat exchanger for a particular heat duty, whenever the LMTD correction factor is

Pick out the wrong statement.

Finned tube heat exchangers

Stefan's block body radiation law can also be derived from __________ law.

In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is

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Heat Transfer and Thermal Conductivity: Part B

Heat Transfer and Thermal Conductivity: Part C

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Heat Transfer and Heat Exchangers: Part B

Heat Transfer and Crystallisation

Heat Transfer and Thermal Properties: Part A

Heat Transfer and Thermal Properties: Part B

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Heat Transfer Mechanisms in a Spaced Plate System

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Filters

Exam 22: Heat Transfer and Boiling Point Elevation in Solutions

It is not recommended to use a 1-2 shell and tube heat exchanger for a particular heat duty, whenever the LMTD correction factor is

Pick out the wrong statement.

Finned tube heat exchangers

Stefan's block body radiation law can also be derived from __________ law.

In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is

Thermal Conductivity and Heat Transfer

Heat Transfer and Thermal Conductivity: Part A

Heat Transfer and Thermal Conductivity: Part B

Heat Transfer and Thermal Conductivity: Part C

Heat Transfer and Evaporator

Heat Transfer and Heat Exchangers: Part A

Heat Transfer and Heat Exchangers: Part B

Heat Transfer and Crystallisation

Heat Transfer and Thermal Properties: Part A

Heat Transfer and Thermal Properties: Part B

Heat Exchangers and Condensation

Thermal Properties and Processes

Concepts in Heat Transfer

Components of Radiation From Flames

Heat Transfer and Thermodynamics

Heat Transfer Processes, Thermometers, and Evaporators

Heat Transfer and Thermal Properties: Part A

Heat Transfer Mechanisms in a Spaced Plate System

Heat Transfer and Evaporation

Understanding the Dominant Mechanism of Heat Transfer

Heat Transfer and Fluid Mechanics

Filters