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- Question
A floating body attains stable equilibrium if its metacentre is
Options- A. at the centroid
- B. above the centroid
- C. below the centroid
- D. anywhere.
- Correct Answer
- above the centroid
- 1. The dimensionless parameter not applicable to flowing liquids, is
Options- A. Reynold number
- B. Weber number
- C. Pressure coefficient
- D. Kinematic viscosity
- E. Friction factor. Discuss
- 2. For maximum horse power of a nozzle, the head supplied must be equal to
Options- A. head loss in the pipe due to friction
- B. twice the head loss in the pipe due to friction
- C. thrice the head loss in the pipe due to friction
- D. four times the head loss in the pipe due to friction. Discuss
- 3. The value of momentum correction factor (?) for a laminar flow through a circular pipe, is
Options- A. 1/2
- B. 2/3
- C. 3/4
- D. 4/3
- E. 3/2 Discuss
- 4. Fluids change the volume under external presssure due to
Options- A. plasticity
- B. viscosity
- C. compressibility
- D. none of these. Discuss
- 5. Cappoletti weir is a
Options- A. rectangular weir whose length is kept 3 times the height of the water above sill
- B. triangular weir whose notch angle is 90°
- C. trapezoidal weir, whose sides slope 1 horizontal to 2 verticals
- D. a combination of rectangular and triangular weirs. Discuss
- 6. For critical flow, the Froude number is :
Options- A. 1.0
- B. less than 1.0
- C. more than 1.0
- D. 2 Discuss
- 7. The velocity of flow at the critical depth (hc) is called critical velocity (Vc) which is equal to
Options- A. Vc = g x hc
- B. g x hc
- C.
- D. None of these. Discuss
- 8. 'Flow net' can be drawn only if the flow is
Options- A. turbulent
- B. rotational
- C. distortion
- D. none of these. Discuss
- 9. Pick up the correct statement from the following :
Options- A. Discharge over a triangular notch is proportional to H5/2
- B. Discharge over a rectangular notch is proportional to H3/2
- C. Both (a) and (b)
- D. Neither (a) nor (b). Discuss
- 10. In C.G.S. system the unit of visocity is
Options- A. dyne
- B. joule
- C. poise
- D. Newton
- E. none of these. Discuss
Hydraulics problems
Search Results
Correct Answer: Kinematic viscosity
Correct Answer: thrice the head loss in the pipe due to friction
Correct Answer: 4/3
Correct Answer: compressibility
Correct Answer: trapezoidal weir, whose sides slope 1 horizontal to 2 verticals
Correct Answer: 1.0
Correct Answer: g x hc
Correct Answer: distortion
Correct Answer: Both (a) and (b)
Correct Answer: poise
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