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

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

1.

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
2.

Convective heat transfer coefficient doesn’t depend on

A. Surface area
B. Space
C. Time
D. Orientation of solid surface
Answer» B. Space
Discussion
3.

An oil cooler in a high performance engine has an outside surface area 0.12 m2 and a surface temperature of 65 degree Celsius. At any intermediate time air moves over the surface of the cooler at a temperature of 30 degree Celsius and gives rise to a surface coefficient equal to 45.4 W/ m 2 K. Find out the heat transfer rate?

A. 238.43 W
B. 190.68 W
C. 543.67 W
D. 675.98 W
Answer» C. 543.67 W
Discussion
4.

Consider system A at uniform temperature t and system B at another uniform temperature T (t > T). Let the two systems be brought into contact and be thermally insulated from their surroundings but not from each other. Energy will flow from system A to system B because of

A. Temperature difference
B. Energy difference
C. Mass difference
D. Volumetric difference
Answer» B. Energy difference
Discussion