The range of electromagnetic spectrum important in heat transfer by radiation is ______________ microns?
Correct answer: B. 0.5-50
- A. 0.38-0.78
- B. 0.5-50
- C. 100-1000
- D. 5-50
Explanation
Most thermal radiation of engineering interest lies roughly in the infrared range, extending approximately from 0.5 to 50 micrometres. The 0.38-0.78 micrometre range is mainly visible light, not the broader heat-transfer radiation band.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Heat Transfer Operations
645 free Heat Transfer Operations MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Heat Transfer Operations questions
The equation, (NSt × N2/3 Pr) = f/2, is the ____________ analogy ?
Stefan-Boltzmann law which describes the radiation heat transfer states that, it is proportional to (where, t = temperature in °C T = absolute temperature in ° K) ?
Boiling point elevation for a strong and concentrated solution is found by Duhring's rule, which states that at the same pressure, the boiling point of a solution is a linear function of the _______________ of pure water?
Boiling point of a solution according to Duhring's rule is a linear function of the _____________ of water?
Prandtl number for most of dry gases is about________________?
Extremely large or small volumes of fluids are generally best routed through the shell side of a shell and tube heat exchanger, because of the________________?