Discussion
Home ‣ Mechanical Engineering ‣ Hydraulics and Fluid Mechanics Comments
- Question
The centre of pressure acts __________ the centre of gravity of immersed surface.
Options- A. at
- B. above
- C. below
- Correct Answer
- below
- 1. One cubic metre of water weighs
Options- A. 100 litres
- B. 250 litres
- C. 500 litres
- D. 1000 litres Discuss
- 2. The critical depth meter is used to measure
Options- A. velocity of flow in an open channel
- B. depth of flow in an open channel
- C. hydraulic jump
- D. depth of channel Discuss
- 3. When a body is placed over a liquid, it is subjected to gravitational force and upthrust of the liquid.
Options- A. True
- B. False Discuss
- 4. A flow through an expanding tube at constant rate is called
Options- A. steady uniform flow
- B. steady non-uniform flow
- C. unsteady uniform flow
- D. unsteady non-uniform flow Discuss
- 5. The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.
Options- A. decreases
- B. increases Discuss
- 6. The highest efficiency is obtained with a channel of __________ section.
Options- A. circular
- B. square
- C. rectangular
- D. trapezoidal Discuss
- 7. The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid)
Options- A. wH/2
- B. wH
- C. wH2/2
- D. wH2/4 Discuss
- 8. A body floating in a liquid is said to be in neutral equilibrium, if its metacentre
Options- A. coincides with its centre of gravity
- B. lies above its centre of gravity
- C. lies below its centre of gravity
- D. lies between the centre of buoyancy and centre of gravity Discuss
- 9. The mass per unit volume of a liquid at a standard temperature and pressure is called
Options- A. specific weight
- B. mass density
- C. specific gravity
- D. none of these Discuss
- 10. In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be
Options- A. running full
- B. running free
- C. partially running full
- D. partially running free Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: 1000 litres
Correct Answer: hydraulic jump
Correct Answer: True
Correct Answer: steady non-uniform flow
Correct Answer: increases
Correct Answer: trapezoidal
Correct Answer: wH2/2
Correct Answer: coincides with its centre of gravity
Correct Answer: mass density
Correct Answer: running free
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