Hydraulics problems
- 1. The acceleration f required to accelerate a rectangular tank containing water horizontally so that the slope of its free surface is 45°, is
Options- A. g/2
- B. g
- C. 2 g
- D. 2.5 g
- E. 3 g. Discuss
Correct Answer: g
- 2. The ratio of inertia force of a flowing fluid and the viscous force of the liquid is called :
Options- A. Renold's number
- B. Froude's number
- C. Euler's number
- D. Weber's number. Discuss
Correct Answer: Renold's number
- 3. For mountaneous regions having steep slope, wagons for carrying liquid are made with bottom
Options- A. parallel to the road surface
- B. parallel to the horizontal surface
- C. inclined upward while moving upwards
- D. inclined downward while moving downwards. Discuss
Correct Answer: parallel to the horizontal surface
- 4. If L, D and f are the length, diameter and coefficient of friction of a pipe, the ratio of the areas of the pipe A and nozzle a, to transmit maximum power, is
Options- A.
- B.
- C.
- D.
Discuss
Correct Answer:
- 5. Water belongs to
Options- A. Newtonian fluids
- B. non-Newtonian fluids
- C. compressible fluid
- D. none of these. Discuss
Correct Answer: Newtonian fluids
- 6. 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
Correct Answer: H7/2
- 7. 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
Correct Answer: large orifices only
- 8. 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
Correct Answer: half the depth of flow
- 9. 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
Correct Answer: rotameter.
- 10. Energy equation is usually applicable to
Options- A. non-uniform flow
- B. turbulent flow
- C. laminar flow
- D. steady flow. Discuss
Correct Answer: steady flow.
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