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- Question
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.
- Correct Answer
- 2.5 cm
- 1. 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
- 2. 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
- 3. 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. Discuss
- 4. 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
- 5. 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
- 6. 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
- 7. 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
- 8. The length of hydraulic jump is roughly
Options- A. 2 to 3 times its height
- B. 3 to 5 times its height
- C. 5 to 7 times its height
- D. None of these. Discuss
- 9. A load w is rolled a distance d across the deck of a ship of weight W, due to which the ship heels through ?°. The metacentric height of the ship, is
Options- A.
- B.
- C.
- D.
Discuss
- 10. Falling drops of water become spheres due to
Options- A. adhesion
- B. cohesion
- C. surface tension
- D. viscosity. Discuss
Hydraulics problems
Search Results
Correct Answer: none of these.
Correct Answer: all the above.
Correct Answer: All of these.
Correct Answer: all the above.
Correct Answer: Cdbd2gh
Correct Answer: In radial flow, flow is one dimensional with stream lines parallel.
Correct Answer: average velocity of flow over a section
Correct Answer: 5 to 7 times its height
Correct Answer:
Correct Answer: surface tension
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