Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid flow control. It is caused due to_________________?
Correct answer: C. Both A. & B.
- A. Reynold stresses
- B. Shear forces
- C. Both A. & B.
- D. Neither A. nor B.
Explanation
Turbulent valve flow generates fluctuating Reynolds stresses and strong shear forces, which produce pressure fluctuations and aerodynamic noise. Thus both listed mechanisms contribute.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Fluid Flow Operations
909 free Fluid Flow 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 Fluid Flow Operations questions
Which of the following dust collection equipments is the least efficient (for sub-micronic particles) ?
The adiabatic throttling process of a perfect gas is one of constant enthalpy_________________?
With increase in temperature, the surface tension of water _____________________?
. Operating principle of cyclone separator is based on the action of _______________ dust particles?
Dust collection efficiency of a cyclone separator depends upon its______________?
The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is_________________?