Practice Calculating Xr (4.2) - Fluid Statics 2 Overview - Hydraulic Engineering

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8 questions

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6 sample questions

Question 1.
What is the formula to calculate pressure at a certain depth in a fluid?
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Remember the variables involved: density, gravity, and depth.
Question 2.
Define buoyancy.
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Think about what happens to an object in water.
3Question 3.
What is the formula for calculating pressure at a specific depth?
- p = ρg/h
- p = ρgh
- p = gh/ρ
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Think about how pressure relates to depth.
4Question 4.
True or False: The center of pressure is always located at the centroid of the area.
- True
- False
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Remember that pressure changes with depth.
Question 5.
A rectangular submerged surface has dimensions 2m x 3m and is located at a depth of 5m. Calculate the resultant force acting on the surface.
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Use the pressure formula to find p.
Question 6.
A curved surface submerged in a fluid has a radius of 1m and is located at a depth of 4m. Derive the equation for the resultant force acting on this surface.
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Think about how pressure varies with angles on the curve.

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