Pick out the correct statement pertaining to the flow through a converging-diverging tube ?
Correct answer: B. No shock wave develops in the tube when the Mach number at exit is greater than unity
- A. The value of Mach number is always unity at the throat
- B. No shock wave develops in the tube when the Mach number at exit is greater than unity
- C. Throughout the converging portion of the tube, the density increases in the downstream
- D. direction
- E. None of these
Explanation
Mach number equals unity at the throat only when the nozzle is choked, not in every case. Under the usual one-dimensional nozzle model, a supersonic exit indicates that no normal shock has occurred inside the tube, making B the intended correct statement.
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
Select the wrong statement pertaining to flow of an incompressible fluid through a Venturimeter ?
Pick out the wrong statement about a streamline ?
Which is the most efficient dust removal equipment for removal of submicronic dust particles from blast furnace gas ?
In hot wire anemometer used for gas flow measurement, the wire is normally made of ______________________?
A globe valve is the most suitable for applications, in which____________________?
Buckingham-π theorem states that in any physical problem including 'n' quantities having 'm' dimensions, the quantities can be arranged into _____________ independent dimensionless parameters?