Dams are typically built with a curved or arched profile to efficiently manage water pressure. This design allows the structure to direct the force of the water against the rock or earth behind it, distributing the pressure more evenly and reducing the risk of structural failure. The curved shape also minimizes the amount of material required, making it more economical while enhancing stability against the immense forces exerted by the water.
So that you will have water pressure from gravity.
to store water where the there is a need for it ie a site of low water pressure so when there is high demand the pressure can be kept
Rushing water is usually controlled by pressure and topography of the land.
A pressure valve is usually installed on water systems to prevent excess water pressure from destroying fixtures or other plumbing components. When the pressure exceeds the valve ratings the valve opens and releases water/pressure from the line.
For the pumps
It's usually just called a "pressure gauge", the assumption being that you know, or a label on it tells you, that it is measuring water-pressure.
Usually about 100 psi.
Optimal household water pressure should be between 40 psi - 80 psi. If water is supplied by public water usually they supply the minimum pressure. If you have more than 80 psi, a pressure reducer is recommended.
To withstand high water pressure when they are submerged at sea.
Well they are built to cool the HUGE amounts of heat generated by the Uranium fuel that usually exceeds 700 Degree Celcius. A nuclear powerplant is usually built near the ocean and the water is turned to stean that turns a turbine which generates energy.
There is usually a main water valve that comes into the house, locate this valve and turn it down. Installing a pressure reducing valve after water main valve will allow for adjustment of water pressure to proper setting.
GE claims their GE Profile Built-In Dishwashers uses 8.4 gallons per load for a normal load