What is the geometric mean of two heat transfer areas A1 and A2 ?
Correct answer: A. √(A1 . A2)
- A. √(A1 . A2)
- B. √(A1 + A2)
- C. ½ √(A1 . A2)
- D. 2 √(A1 . A2)
Explanation
The geometric mean of two positive quantities is the square root of their product. Therefore, the mean area is √(A1A2), not the square root of their sum.
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
Stefan's block body radiation law can also be derived from ______________ law?
Sensible heat absorbed by 1 lb of water when it is heated from 32 to 212°F may be around ______________ BTU?
A black body does not ____________ radiation?
The ratio of velocity head to tube side return loss in case of a multipass shell and tube heat exchanger is ________________?
Which has the lowest Prandtl number ?
In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is_________________?