Explore topic-wise MCQs in Heat Transfer Operations.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Heat Transfer Operations knowledge and support exam preparation. Choose a topic below to get started.

1.

When we take a point between the Boiling line and the freezing line in an enthalpy concentration diagram, then the mixture can exist in _______ in that particular point.

A. Liquid phase
B. Solid state
C. Gaseous state
D. Liquid and gas both
Answer» B. Solid state
Discussion
2.

When we take a point between the Boiling line and the dew line in an enthalpy concentration diagram, then the mixture can exist in _______ in that particular point.

A. Liquid phase
B. Solid state
C. Gaseous state
D. Liquid and gas both
Answer» E.
Discussion
3.

In an enthalpy concentration diagram, the point of intersection of a particular isothermal line to the Dew line is used to calculate _____________

A. Vapour phase composition
B. Liquid phase composition
C. Water mole fraction
D. Liquid phase weight fraction
Answer» B. Liquid phase composition
Discussion
4.

The auxiliary line value ____________ as we move towards higher concentrations in an enthalpy concentration diagram.

A. Increases
B. Decreases
C. Remains same
D. Exponentially increases
Answer» C. Remains same
Discussion
5.

The _________ represents the line of 100% secondary liquid concentration in an enthalpy concentration diagram.

A. Top horizontal axis
B. Left vertical axis
C. Right vertical axis
D. Bottom horizontal axis
Answer» D. Bottom horizontal axis
Discussion
6.

What is the name of the line that joins the Dew line to the Boiling line in an enthalpy concentration diagram?

A. Azeotropic line
B. Isothermal line
C. Auxiliary line
D. Freezing line
Answer» C. Auxiliary line
Discussion
7.

The straight line in the enthalpy concentration diagram is known as ___________

A. Dew line
B. Azeotropic line
C. Auxiliary line
D. Boiling line
Answer» B. Azeotropic line
Discussion