Discussion
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- Question
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
- Correct Answer
- lower critical velocity
- 1. A venturiflume is a flumed structure constructed across a channel by restricting its width.
Options- A. True
- B. False Discuss
- 2. A piezometer tube is used only for measuring
Options- A. low pressure
- B. high pressure
- C. moderate pressure
- D. vacuum pressure Discuss
- 3. 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
- 4. 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 Discuss
- 5. 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
- 6. 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
- 7. All the gases are considered to have compressible flow and all the liquids are considered to have incompressible flow.
Options- A. Correct
- B. Incorrect Discuss
- 8. Select the correct statement
Options- A. Weber's number is the ratio of inertia force to elastic force.
- B. Weber's number is the ratio of gravity force to surface tension force.
- C. Weber's number is the ratio of viscous force to pressure force.
- D. Weber's number is the ratio of inertia force to surface tension force. Discuss
- 9. The discharge of a depressed nappe is 6 to 7 percent __________ that of a free nappe.
Options- A. less than
- B. more than Discuss
- 10. Euler's number is the ratio of __________ force to pressure force.
Options- A. inertia
- B. gravity
- C. viscous Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: True
Correct Answer: moderate pressure
Correct Answer: 0.5 a2gH
Correct Answer: False
Correct Answer: all of the above
Correct Answer: more than
Correct Answer: Correct
Correct Answer: Weber's number is the ratio of inertia force to surface tension force.
Correct Answer: more than
Correct Answer: inertia
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