In area meter (e.g., Rotameter), with increase in the fluid flow rate, the___________________?
Correct answer: D. Pressure drop is almost constant
- A. Pressure drop increases linearly
- B. None of these
- C. Area through which fluid flows does not vary
- D. Pressure drop is almost constant
Explanation
A rotameter operates at an approximately constant pressure drop, while the float rises to increase the annular flow area as flow rate increases. Thus, the changing area rather than a large pressure-drop change indicates the flow rate.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
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
In case of a centrifugal pump, the theoretical head developed is dependent on the _____________ the impeller?
Drag co-efficient for motion of spherical particles in a stationary fluid in the stoke's law range is_________________?
A rectangular surface 3′ × 4′, has the lower 3 edge horizontal and 6′ below a free oil surface (sp. gr. 0.8). The surface inclination is 300 with the horizontal. The force on one side of the surface is (where, y = specific weight of water) ?
Minimum porosity for fluidisation is____________________?
Isothermal turbulent flow of a fluid results in decrease of its pressure, which depends on the______________?
A compressor that takes suction at a pressure below atmospheric and discharge against atmospheric pressure is called a ____________ pump?