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Fluid Mechanics 1: Fluid Dynamics
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Fluid Mechanics 1: Fluid Dynamics
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25 Questions

1. What is the SI unit of momentum?
2. What is the velocity profile for Poiseuille flow?
3. The Orificemeter readings are more accurate than Venturimeter.
4. The equation for impulse is_______
5. A student wishes to find the velocity of air flowing through a pipe. He has a pressure gauge which displays only the dynamic pressure. The pressure gauge reads 0.018 mm Hg. Assume density of air to be 1.225 kg/m3, find the velocity V of air (ρHg = 13600 kg/m3).
6. Continuum mechanics is a branch of mechanics that deals with________
7. Angular momentum is a _______ quantity
8. Which among the following is not an example of magneto fluids?
9. What does Kinematic Viscosity depend upon?
10. The Navier- Stokes equation can be used in which of the following applications?
11. The Bernoulli’s equation in fluid dynamics is valid for _________
12. A water flows through a pipe at a velocity 2 m/s. The pressure gauge reading is 2 bar. The datum head is given to be 2 m. Find the piezometric head. (Assume all Bernoulli’s assumptions, Density of water = 1000 kg/m3, g = 9.8 m/s2).
13. What is the incompressibility condition in Navier-Stokes equation?
14. The best place to place a pitot tube on an aircraft for velocity measurement is just behind the jet engine.
15. Change in momentum of an object is equal to the_______
16. Orifice meter consists of a flat rectangular plate.
17. When is orifice called ‘large orifice’?
18. Which of the following equations is a result of momentum conservation for inviscid steady flows?
19. At what temperature is the density of water the maximum?
20. The velocity profile of the Couette flow is _______
21. What are the Newtonian constitutive assumptions regarding relationship between stress tensor and velocity gradients?
22. Froude number depends upon_________
23. In case of any orifice, velocity always remains constant and hence discharge can be calculated.
24. Which is the cheapest device for measuring flow / discharge rate.
25. What does a pitot tube measure? Upon which principle does a pitot tube work?

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