Quiz 12: Fluid Mechanics 20 MCQs with Answers


1. The pressure in meters of oil (specific gravity 0.85) equivalent to 42.5 m of water is

2. When a single fluid particle traces a line and as it moves over a period of time, then the line traced is called as:

3. A low pressure of the order of 10-10 torr can be measured in a chamber with which of the following device:

4. A one-dimensional flow is one which is specified as:

5. Kinematic viscosity is equal to the:

6. What will be the change, when pressure is increased then the bulk modulus of elasticity:

7. The force of buoyancy is dependent on which of the following property of the fluid:

8. Which one of the following is express the unit of dynamic or absolute viscosity:

9. If the surface of the liquid is convex then what will be the change in cohesion pressure:

10. The resultant upward pressure of the fluid acting on the immersed body is also known as the:

11. Which of the following mentioned forces does not act in the case of fluid:

12. What will be the capillary rise of a two-dimensional slit which width is assumed to be ‘w’:

13. In a steady flow of a fluid, the acceleration of every fluid particle is:

14. To measure the flow rate of a fluid through the Venturimeter, it should be installed in direction:

15. For an irrotational flow the equation d²¢/dx² + d²¢/dy², is known as:

16. Separation of flow occurs due to reduction of a pressure gradient to:

17. Which one of the following statements is true when considering that flow is laminar:

18. Which of the following expression expresses the value of Reynolds number for non-circular cross-section:

If,

V = mean velocity

v = Kinematic viscosity

P = ratio of cross-section area to the wetted perimeter

19. Unsteady uniform flow means to flow through a/an

20. By which of the following function, the thickness of turbulent boundary layer at a distance x from the leading edge over a flat plate varies as:


 

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