What is Nusselt number ?
Correct answer: B. hD/k
- A. CP. μ/k
- B. hD/k
- C. h. CP/μ
- D. CP. μ/h
Explanation
The Nusselt number compares convective heat transfer with conduction across a fluid layer and is defined as Nu = hD/k, using the characteristic length D. The other expressions correspond to combinations of properties, not this dimensionless ratio.
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
Boiling of milk in an open vessel is an example of ______________ boiling?
While the total emissivity of a perfect black body is unity, the same for a real body is__________________?
A body is called grey if the monochromatic emissivity of the body is___________________?
In the equation Q = UAΔt; Δt is_________________________?
Graetz number is given by__________________?
Reynold's analogy states that_________________?