Discussion
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- Question
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
- Correct Answer
- steady uniform flow
- 1. 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
- 2. The depth of water in a channel corresponding to the minimum specific energy is known as critical depth.
Options- A. Agree
- B. Disagree Discuss
- 3. The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)
Options- A. 0.855 a2gH
- B. 1.855 aH2g
- C. 1.585 a2gH
- D. 5.85 aH2g Discuss
- 4. Which of the following statement is wrong?
Options- A. A flow whose streamline is represented by a curve, is called two dimensional flow.
- B. The total energy of a liquid particle is the sum of potential energy, kinetic energy and pressure energy.
- C. The length of divergent portion in a venturimeter is equal to the convergent portion.
- D. A pitot tube is used to measure the velocity of flow at the required point in a pipe. Discuss
- 5. When the pressure intensity at a point is less than the local atmospheric pressure, then the difference of these two pressures is called vacuum pressure.
Options- A. Agree
- B. Disagree Discuss
- 6. 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
- 7. 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
- 8. 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
- 9. 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
- 10. 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
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: Correct
Correct Answer: Agree
Correct Answer: 0.855 a2gH
Correct Answer: The length of divergent portion in a venturimeter is equal to the convergent portion.
Correct Answer: Agree
Correct Answer: 1.84 LH3/2
Correct Answer: Agree
Correct Answer: all of the above
Correct Answer: False
Correct Answer: 0.5 a2gH
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