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- Question
For steady flow in open channels, which one of the following does not change :
Options- A. depth of flow
- B. velocity of flow
- C. rate of flow
- D. All of these.
- Correct Answer
- All of these.
- 1. A triangular notch is preferred to a rectangular notch because
Options- A. only one reading is required
- B. its formula is simple to remember
- C. it gives more accurate results for low discharge
- D. it measures a wide range of flows accurately
- E. all the above. Discuss
- 2. If H is the difference of liquid levels on two sides of an orifice (width b, depth d), the discharge through the orifice will be
Options- A. Cdbd22gH
- B. Cdb2d2gH
- C. Cdbd2gh
- D. Cdbd.2g H1/2. Discuss
- 3. If H is height of the liquid above the sill, the effect of end contractions, according to Francis formula, is
Options- A. 0.1 H
- B. 0.2 H
- C. 0.3 H
- D. 0.4 H
- E. 0.5 H. Discuss
- 4. The value of kinetic energy correction factor (a) for a laminar flow through a circular pipe, is
Options- A. 0.5
- B. 1.0
- C. l.5
- D. 2.0
- E. 2.5 Discuss
- 5. A spherical load 900 kg is rolled through 9.8 m across the deck of a ship weighing 10, 000 kg. If the metacentric height of the ship is 5 metres, the angle of heel, is
Options- A. 10° 5'
- B. 10° 10'
- C. 10° 15'
- D. 10° 20' Discuss
- 6. Equation of continuity of fluids is applicable only if
Options- A. flow is steady
- B. flow is compressive
- C. flow is one dimensional
- D. velocity is uniform over the cross-sections
- E. all the above. Discuss
- 7. Frictional loss of head includes the loss of energy due to
Options- A. viscosity
- B. turbulence
- C. both (a) and (b)
- D. none of these. Discuss
- 8. A nozzle is fitted at the end of a pipe whose length is 320 m and diameter is 10 cm. If the value of f = 0.01, the diameter of the nozzle for the maximum transmission of power through the nozzle is
Options- A. 2.4 cm
- B. 2.5 cm
- C. 2.6 cm
- D. 2.7 cm. Discuss
- 9. Pick up the incorrect statement from the following :
Options- A. In radial flow, fluid flows such that pressure and velocity at any point change with respect to its distance from the central axis
- B. In radial flow, velocity of flow is in a radial direction
- C. In radial flow, flow may take place radially inward to or outward from the centre
- D. In radial flow, flow is one dimensional with stream lines parallel. Discuss
- 10. For solving the problems is hydraulic engineering, the velocity used is
Options- A. velocity at the centre of pipe section
- B. average velocity of flow over a section
- C. mean of the velocities at the centre and that along the pipe surface
- D. none of these. Discuss
Hydraulics problems
Search Results
Correct Answer: all the above.
Correct Answer: Cdbd2gh
Correct Answer: 0.1 H
Correct Answer: 2.0
Correct Answer: 10° 15'
Correct Answer: all the above.
Correct Answer: none of these.
Correct Answer: 2.5 cm
Correct Answer: In radial flow, flow is one dimensional with stream lines parallel.
Correct Answer: average velocity of flow over a section
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