Explore topic-wise MCQs in Heat Transfer.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Heat Transfer knowledge and support exam preparation. Choose a topic below to get started.

1.

For film wise condensation on a vertical plane, the film thickness and heat transfer coefficient h vary with distance x from the leading edge as

A. decreases, h increases
B. Both and h increases
C. increases, h decreases
D. Both and h decreases
Answer» D. Both and h decreases
Discussion
2.

In condensation over a vertical surface, the value of convection coefficient varies as

A. k <sup>0.25</sup>
B. k<sup> 0.33</sup>
C. k<sup> 0.75</sup>
D. k <sup>-0.5</sup>
Answer» B. k<sup> 0.33</sup>
Discussion
3.

Saturated steam is allowed to condense over a vertical flat surface and the condensate film flows down the surface. The local coefficient of heat transfer for condensation

A. Remains constant at all heights of the surface
B. Decreases with increasing distance from the top of the surface
C. Increases with increasing thickness of film
D. Increases with increasing temperature differential between the surface and vapour
Answer» C. Increases with increasing thickness of film
Discussion
4.

Condensation refers to a change from the

A. Solid to a liquid phase
B. Vapor to a liquid phase
C. Liquid to a solid phase
D. Liquid to a vapor phase
Answer» C. Liquid to a solid phase
Discussion