Prandtl and Reynolds analogy are same, when Prandtl number is____________________?
Correct answer: B. 1
- A. 0.5
- B. 1
- C. > 2
- D. 1.5
Explanation
Prandtl and Reynolds analogies coincide when Pr = 1, because the momentum and thermal diffusivities are then equal. This makes the velocity and temperature boundary-layer behaviors analogous.
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
Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the____________________?
Boiling point elevation of a solution of NaOH _____________________?
A diathermanous substance _______________ the thermal radiation completely?
Arithmetic mean area can be used in heat transfer problem to calculate the heat flow by conduction through a cylinder which is ____________________?
A 2-4 heat exchanger involves__________________?
In a shell and tube heat exchanger, the height of 25 percent cut baffles is equal to (where, D = inside diameter of shell) ?