Explore topic-wise MCQs in Heat Transfer.

This section includes 3 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.

If the temperature of a hot body is increased by 50%, the amount of radiations emitted by it would increase by nearly

A. 200%
B. 500%
C. 50%
D. 100%
Answer» C. 50%
Discussion
2.

The temperature of a solid surface changes from 27 K to 627 K. The emissive power changes would then confirm to the ratio

A. 6:1
B. 9:1
C. 81:1
D. 27:1
Answer» D. 27:1
Discussion
3.

If radiant energy E B emitted by the black surface strikes the non-black surface. If non-black surface has absorptivity , it will absorb how much radiations?

A. E<sub> B</sub>
B. 2 E<sub> B</sub>
C. 3 E<sub> B</sub>
D. 4 E<sub> B</sub>
Answer» B. 2 E<sub> B</sub>
Discussion