Explore topic-wise MCQs in Heat Transfer Operations Questions and Answers.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Heat Transfer Operations Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the name of the axes in the moisture isotherm plotted below?

A. X – Relative humidity Y – Moisture content
B. X – Relative humidity Y – Equilibrium moisture content
C. X – Absolute humidity Y – Moisture content
D. X – Absolute humidity Y – Equilibrium moisture content
Answer» D. X – Absolute humidity Y – Equilibrium moisture content
Discussion
2.

What is the term K in the given equation of multi-molecular adsorption?

A. \(\frac{X}{X_1} =\frac{C\phi}{(1-k\phi)(1+(C-k)\phi)}\)
B. k is the relative humidity
C. k is the exp (± ΔH/RT)
D. k is the moisture content for a complete layer
E. k is the enthalpy difference in adsorptive heats between the first and successive molecular layers
Answer» C. k is the exp (± ΔH/RT)
Discussion
3.

What is the term X1 in the given equation?

A. \(\frac{X}{X_1} =\frac{C \phi}{(1-k \phi)(1+(C-k) \phi))}\)
B. Equilibrium moisture content
C. Moisture content for a complete layer
D. Moisture content for three layers together
E. Moisture content for a complete monolayer
Answer» E. Moisture content for a complete monolayer
Discussion
4.

The free energy ΔG required to release unit molal quantity of this moisture is given by

A. ΔG = – RT Ln(Ψ), for an isothermal, reversible process without change of composition.
B. True
C. False
Answer» B. True
Discussion
5.

What is the term Ψ in the given equation of free energy ΔG required to release unit molal quantity of this moisture?

A. ΔG = – RT Ln(Ψ)
B. Absolute Humidity
C. Relative Humidity
D. Mole fraction of water
E. Moisture content
Answer» C. Relative Humidity
Discussion
6.

The free energy ΔG required to release unit molal quantity of this moisture is given by ___________

A. – RT Ln(Relative Humidity)
B. – RT Ln(Mole fraction of water)
C. – RT Ln(Moisture content)
D. – RT Ln(Absolute Humidity)
Answer» B. – RT Ln(Mole fraction of water)
Discussion