Discussion
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- Question
If a1 and a2 are the cross-sectional areas of a tank and orifice, h the height of water level in tank above the centre of the orifice, the velocity of approach is given by
Options- A.
- B.
- C.
- D.
- Correct Answer
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- 1. Equation of continuity of flow is based on the principle of conservation of
Options- A. mass
- B. momentum
- C. force
- D. none of these. Discuss
- 2. The ratio of time for completely emptying the hemispherical tank and circular horizontal tank of equal radii both fitted with similar orifices at their bottoms is :
Options- A.
- B.
- C.
- D.
Discuss
- 3. Weber number is the ratio of inertia force to
Options- A. surface tension
- B. gravitational force
- C. elasticity
- D. viscosity. Discuss
- 4. In an inclined position, a venturimeter records
Options- A. more reading
- B. less reading
- C. same reading
- D. none of these. Discuss
- 5. The flow in which each liquid particle has a definite path and the paths of adjacent particles do not cross each other, is called
Options- A. stream line flow
- B. uniform flow
- C. steady flow
- D. turbulent flow. Discuss
- 6. For a most economical rectangular channel, the width of the channel must be
Options- A. equal to depth of flow
- B. twice the depth of flow
- C. half the depth of flow
- D. None of these. Discuss
- 7. The pressure rise due to water hammer depends upon
Options- A. the velocity of flow of water in the pipe
- B. the length of pipe
- C. time taken to close the valve
- D. the elasticity of the pipe material
- E. All of above. Discuss
- 8. The centre of pressure of a vertical plane immersed in a liquid is at
Options- A. centre of higher edge
- B. centre of lower edge
- C. centroid of the area
- D. none of these. Discuss
- 9. In an inclined pipe, the pressure difference at its two ends is due to
Options- A. sudden head drop at inlet
- B. exit head drop
- C. frictional loss head
- D. elevation head
- E. all the above. Discuss
- 10. The flow in open channel is laminar if the Reynold number is
Options- A. less than 500
- B. more than 500
- C. 1000
- D. none of these. Discuss
Hydraulics problems
Search Results
Correct Answer: mass
Correct Answer:
Correct Answer: surface tension
Correct Answer: same reading
Correct Answer: stream line flow
Correct Answer: twice the depth of flow
Correct Answer: All of above.
Correct Answer: none of these.
Correct Answer: all the above.
Correct Answer: less than 500
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