Explore topic-wise MCQs in Mechanical Engineering.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.	90% of the incident radiation on glass in the visible range is
A.	absorbed
B.	reflected
C.	transmitted
D.	none of the above
Answer» D. none of the above

Discussion

2.	40% of incident radiant energy on the surface of a thermally transparent body is reflected back. If the transmissivity of the body be 0.15, then the emissivity of surface is____________________?
A.	0.45
B.	0.55
C.	0.40
D.	0.75
Answer» B. 0.55

Discussion

Explore topic-wise MCQs in Mechanical Engineering.

90% of the incident radiation on glass in the visible range is

40% of incident radiant energy on the surface of a thermally transparent body is reflected back. If the transmissivity of the body be 0.15, then the emissivity of surface is____________________?