Discussion
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- Question
For pipes not running full, the hydraulic mean depth is given by
Options- A. m = r(? - sin ?)
- B.
- C.
- D.
- Correct Answer
-
- 1. Pick up the correct statement from the following :
Options- A. When the length of the tube is equal to diameter of the internal mouth piece, the jet of liquid comes out without touching the sides of the tube
- B. When the length of the tube is three times the diameter of the internal mouth piece, the jet diameter is equal to diameter of the tube.
- C. both (a) and (b)
- D. Neither (a) nor (b). Discuss
- 2. Flow in pipes is turbulent if Reynold number is
Options- A. less than 2100
- B. more than 3000
- C. between 2100 and 3000
- D. none of these. Discuss
- 3. An ideal fluid is
Options- A. incompressible
- B. compressible
- C. compressible and non-viscous
- D. slightly affected by surface torque. Discuss
- 4. In Newton's viscosity equation
, the coefficient (?) is known as coefficient of
Options- A. viscosity
- B. absolute viscosity
- C. dynamic viscosity
- D. simple viscosity
- E. all the above. Discuss
- 5. A fluid particle may possess the displacement of
Options- A. translation
- B. rotation
- C. distortion
- D. all the above. Discuss
- 6. A jet projected at an angle of 45?, 40 m from the foot of a vertical column, just reaches the top of the column. The height of the column is
Options- A. 15 m
- B. 20 m
- C. 30 m
- D. 40 m
- E. 60 m. Discuss
- 7. To avoid vapourisation, pipe lines are laid over the ridge so that these are above the hydraulic gradient line, not more than
Options- A. 2.4 m
- B. 6.4 m
- C. 10.0 m
- D. 5.0 m. Discuss
- 8. Atmospheric pressure varies with
Options- A. altitude
- B. temperature
- C. weather conditions
- D. all of the above. Discuss
- 9. Molecules of fluids get attracted due to
Options- A. capillarity action
- B. surface tension
- C. adhesion
- D. cohesion
- E. none of these. Discuss
- 10. Atmospheric pressure is equal to water column head of
Options- A. 9.81 m
- B. 5.0 m
- C. 10.30 m
- D. 7.5 m. Discuss
Hydraulics problems
Search Results
Correct Answer: both (a) and (b)
Correct Answer: more than 3000
Correct Answer: compressible and non-viscous
Correct Answer: all the above.
Correct Answer: all the above.
Correct Answer: 40 m
Correct Answer: 6.4 m
Correct Answer: all of the above.
Correct Answer: adhesion
Correct Answer: 10.30 m
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