For a vertical submerged plane surface, the centre of pressure is generally located:
Correct answer: B. Below the centroid of the surface
- A. Above the centroid of the surface
- B. Below the centroid of the surface
- C. At the free surface of the liquid
- D. At the lower edge of the surface
Explanation
Pressure increases with depth, so the resultant hydrostatic force acts below the geometric centroid of a vertical plane. The exact position depends on the area distribution and depth of the surface.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Hydraulics and Water Resources
Hydraulics studies fluid properties, pressure, buoyancy, continuity, Bernoulli's equation, momentum, pipe flow, open-channel flow and hydraulic machines. Water resources extends these principles to pumps, turbines, reservoirs, irrigation, floods and hydrology, while distinguishing laminar from turbulent flow and uniform from gradually varied channel flow.
Practise Hydraulics and Water Resources
78 free Hydraulics and Water Resources MCQs from Civil Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Civil Engineering questions like this
Civil Engineering is on 3 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Hydraulics and Water Resources questions
The specific weight of a fluid is defined as its:
In a gradually varied open-channel flow, the pressure distribution is generally assumed to be:
A reservoir reduces the peak discharge of a flood mainly by:
The energy grade line in a pipe system lies above the hydraulic grade line by the:
The major cause of head loss at a sharp bend in a pipe is:
For geometrically similar centrifugal pumps operating under similar conditions, if the rotational speed is doubled, the ideal pump head changes by a factor of: