Discussion
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- Question
A body floating in a liquid is said to be in a stable equilibrium, if its metacentre coincides with its centre of gravity.
Options- A. True
- B. False
- Correct Answer
- False
- 1. The Euler's equation for the motion of liquids is based upon the assumption that
Options- A. the fluid is non - viscous, homogeneous and incompressible
- B. the velocity of flow is uniform over the section
- C. the flow is continuous, steady and along the stream line
- D. all of the above Discuss
- 2. A flow in which each liquid particle does not have a definite path and the paths of individual particles also cross each other, is called turbulent flow.
Options- A. Agree
- B. Disagree Discuss
- 3. The Francis formula for the discharge over Cippoletti weir is
Options- A. 1.84 LH1/2
- B. 1.84 LH
- C. 1.84 LH3/2
- D. 1.84 LH5/2 Discuss
- 4. A flow through a long pipe at constant rate is called
Options- A. steady uniform flow
- B. steady non-uniform flow
- C. unsteady uniform flow
- D. unsteady non-uniform flow Discuss
- 5. In an external or internal mouthpiece, the absolute pressure head at vena contracta is zero when atmospheric pressure head is 10.3 m of water.
Options- A. Correct
- B. Incorrect Discuss
- 6. When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece)
Options- A. 0.5 a2gH
- B. 0.707 a2gH
- C. 0.855 a2gH
- D. a2gH Discuss
- 7. A piezometer tube is used only for measuring
Options- A. low pressure
- B. high pressure
- C. moderate pressure
- D. vacuum pressure Discuss
- 8. A venturiflume is a flumed structure constructed across a channel by restricting its width.
Options- A. True
- B. False Discuss
- 9. The velocity corresponding to Reynold number of 2000 is called
Options- A. sub-sonic velocity
- B. super-sonic velocity
- C. lower critical velocity
- D. higher critical velocity Discuss
- 10. The siphon will work satisfactorily, if the minimum pressure in the pipe is __________ vapour pressure of liquid.
Options- A. equal to
- B. less than
- C. more than Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: all of the above
Correct Answer: Agree
Correct Answer: 1.84 LH3/2
Correct Answer: steady uniform flow
Correct Answer: Correct
Correct Answer: 0.5 a2gH
Correct Answer: moderate pressure
Correct Answer: True
Correct Answer: lower critical velocity
Correct Answer: more than
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