Discussion
Home ‣ Mechanical Engineering ‣ Hydraulics and Fluid Mechanics Comments
- Question
The hydraulic gradient line is always parallel to the centre line of the pipe.
Options- A. Correct
- B. Incorrect
- Correct Answer
- Incorrect
- 1. The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and ? = Density of the fluid)
Options- A. K.?
- B. K/?
- C. ?/K
- D. K.? Discuss
- 2. The total energy of a liquid particle in motion is equal to
Options- A. pressure energy + kinetic energy + potential energy
- B. pressure energy - (kinetic energy + potential energy)
- C. potential energy - (pressure energy + kinetic energy
- D. kinetic energy - (pressure energy + potential energy) Discuss
- 3. A flow through a long pipe at decreasing rate is called __________ uniform flow.
Options- A. steady
- B. unsteady Discuss
- 4. The factional resistance of a pipe varies approximately with __________ of the liquid.
Options- A. pressure
- B. velocity
- C. square of velocity
- D. cube of velocity Discuss
- 5. The point at which the resultant pressure on an immersed surface acts, is known as
Options- A. centre of gravity
- B. centre of depth
- C. centre of pressure
- D. centre of immersed surface Discuss
- 6. The volume of a fluid __________ as the pressure increases.
Options- A. remains same
- B. decreases
- C. increases Discuss
- 7. A differential manometer is used to measure
Options- A. atmospheric pressure
- B. pressure in pipes and channels
- C. pressure in venturimeter
- D. difference of pressures between two points in a pipe Discuss
- 8. The surface tension of mercury at normal temperature is __________ that of water.
Options- A. same as
- B. lower than
- C. higher than Discuss
- 9. The D-Alembert's principle is used for changing the dynamic equilibrium of a fluid mass, into a static equilibrium.
Options- A. Agree
- B. Disagree Discuss
- 10. When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures.
Options- A. sum
- B. difference
- C. arithmatic mean
- D. geometric mean Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: K/?
Correct Answer: pressure energy + kinetic energy + potential energy
Correct Answer: unsteady
Correct Answer: square of velocity
Correct Answer: centre of pressure
Correct Answer: decreases
Correct Answer: difference of pressures between two points in a pipe
Correct Answer: higher than
Correct Answer: Agree
Correct Answer: difference
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