Pick out the wrong statement.

Question

Options:

A . The form drag is dependent upon the occurrence of a wake

B . The shear stress at any given cross-section of a pipe for steady flow (either laminar or turbulent) varies linearly as the radial distance

C . An ideal fluid is the one, which has negligible surface tension and obeys the Newton's law of viscosity

D . Existence of the boundary layer in fluid flow is because of viscosity of the fluid

Answer: Option C

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More Questions on This Topic :

Question 1. Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor f....for smooth pipe is f₂. Pick out the correct statement.

Question 2. In turbulent flow, a rough pipe has the same friction factor as a smooth pipe....

Question 3. In centrifugal pump operation, the cavitation can be eliminated by maintaining suction pressure __________ the vapor pre....the vapor pressure of the liquid at the suction temperature.

Question 4. Drag co-efficient for motion of spherical particles in a stationary fluid in the stoke's law range is....

Question 5. Vena-contracta formed during flow of a liquid through an orificemeter has....

Question 6. Hydraulic intensifier is used for increasing the....

Question 7. In case of end to end connection of two or more pipes in series, the __________ each pipe.....

Question 8. For the manometer set up shown in the figure, the pressure difference PA - PB is given by....

Question 9. Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differen....H = difference in height of mercury column in mm).

Question 10. The line traced by a single fluid particle as it moves over a period of time is called __________ line.....

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