Explore topic-wise MCQs in Heat Transfer.

This section includes 5 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.

Which of the following is an example of forced convection?

A. Chilling effect of cold wind on a warm body
B. Flow of water in condenser tubes
C. Cooling of billets in the atmosphere
D. Heat exchange on cold and warm pipes
Answer» C. Cooling of billets in the atmosphere
Discussion
2.

A radiator in a domestic heating system operates at a surface temperature of 60 degree Celsius. Calculate the heat flux at the surface of the radiator if it behaves as a black body

A. 697.2 W/m<sup>2</sup>
B. 786.9 W/m<sup>2</sup>
C. 324.7 W/m<sup>2</sup>
D. 592.1 W/m<sup>2</sup>
Answer» B. 786.9 W/m<sup>2</sup>
Discussion
3.

Thermal conductivity is maximum for which substance

A. Silver
B. Ice
C. Aluminum
D. Diamond
Answer» E.
Discussion
4.

The rate equation used to describe the mechanism of convection is called Newton s law of cooling. So rate of heat flow by convection doesn t depend on

A. Convective heat transfer coefficient
B. Surface area through which heat flows
C. Time
D. Temperature potential difference
Answer» D. Temperature potential difference
Discussion
5.

Convective heat transfer coefficient doesn t depend on

A. Surface area
B. Space
C. Time
D. Orientation of solid surface
Answer» B. Space
Discussion