In case of laminar flow of fluid through a circular pipe, the__________________?
Correct answer: B. Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the
- A. Shear stress over the cross-section is proportional to the distance from the surface of the pipe
- B. Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the
- C. volume of circumscribing cylinder
- D. Velocity profile varies hyperbolically and the shear stress remains constant over the crosssection
- E. Average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius)
Explanation
For laminar flow in a circular pipe, the velocity profile is parabolic, so its solid of revolution is a paraboloid whose volume is half that of the circumscribing cylinder. The shear stress is zero at the centre and maximum at the wall, not constant.
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
Bernoulli's equation describes the _______________?
What is the value of co-efficient of discharge for square edged circular orifice (for β = 0.3 to 0.5) ?
Reciprocating pumps compared to centrifugal pumps__________________?
Baffles in mixing tanks are provided to__________________?
Flow measurement in an open channel is done by a/an ________________?
A lubricant 100 times more viscous than water would have a viscosity (in Pa.s) ?