A Pitot tube indicates 5 cm of water (manometer) when it is being used for measuring velocity of air. The velocity of air in m/sec is___________________?
Correct answer: D. 28.2
- A. 5
- B. 14.1
- C. 56.22
- D. 28.2
Explanation
The Pitot reading gives dynamic pressure: one-half rho_air times velocity squared equals rho_water g h. Substituting h = 0.05 m and ordinary air and water densities gives a velocity of about 28.2 m/s.
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
The speed of a sound wave in a gas is analogous to the speed of ______________________?
Which of the following is used for very accurate measurement of flow of gas at low velocity ?
Which law/principle of solid mechanics is similar/equivalent to Newton's law of viscosity in fluid mechanics ?
With the increase in depth, the hydrostatic pressure in an un-accelerated incompressible fluid (in a constant gravitational field) ?
For a given fluid flow rate, which of the following incurs maximum head loss ?
For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the___________________?