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- Question
Hydraulic grade line
Options- A. remains above the centre line of conduit
- B. remains below the centre line of conduit
- C. remains parallel to the centre line of conduit
- D. may be above or below the centre line of conduit.
- Correct Answer
- may be above or below the centre line of conduit.
- 1. Energy equation is usually applicable to
Options- A. non-uniform flow
- B. turbulent flow
- C. laminar flow
- D. steady flow. Discuss
- 2. Flow of water in pipes of diameter more than 3 metres, can be measured by
Options- A. pitot tube
- B. venturimeter
- C. orifice plate
- D. rotameter. Discuss
- 3. For a most economical rectangular channel, the hydraulic mean depth, is equal to
Options- A. the depth of flow
- B. half the depth of flow
- C. one-third depth of flow
- D. None of these. Discuss
- 4. The discharg formula Q = Cd 2gH x A is used for rectangular
Options- A. small orifices only
- B. large orifices only
- C. small and large orifices only
- D. for all types of orifices. Discuss
- 5. The discharge through a V-notch weir varies as
Options- A. H
- B. 1/H
- C. H3/2
- D. H7/2
- E. H5/2. Discuss
- 6. The flow is called rotational if its velocity normal to the plane of area is equal to
Options- A. angular velocity vector
- B. twice the angular velocity vector
- C. thrice the angular velocity vector
- D. none of these. Discuss
- 7. The dimensional formula of force is
Options- A. MLT-2
- B. M-1LT2
- C. ML-2T
- D. M-1L2T-2
- E. none of these. Discuss
- 8. To avoid the tendency of separation of liquid flow, the most suitable ratio of the diameters of the throat and the pipe, is
Options- A. 1/4 to 1/8
- B. 1/3 to 1/2
- C. 1/2 to 3/4.
- D. none of these. Discuss
- 9. Specific weight of sea water is more than that of pure water because of
Options- A. dissolved air
- B. dissolved salts
- C. suspended matter
- D. all the above. Discuss
- 10. On a flow net diagram, the distance between two consecutive steam lines at two successive sections are 1 cm and 0.5 cm respectively. If the velocity at the first section is 1 m/sec, the velocity at the second is
Options- A. 1.0 m/sec
- B. 0.5 m/sec
- C. 2.0 m/sec
- D. 2.5 m/sec
- E. 3 m/sec. Discuss
Hydraulics problems
Search Results
Correct Answer: steady flow.
Correct Answer: rotameter.
Correct Answer: half the depth of flow
Correct Answer: large orifices only
Correct Answer: H7/2
Correct Answer: twice the angular velocity vector
Correct Answer: MLT-2
Correct Answer: 1/3 to 1/2
Correct Answer: all the above.
Correct Answer: 2.0 m/sec
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