It is mostly used when referring to air. I suppose it can be used but I would expect it to be inches cubed instead of per square inch when dealing with water.
You can lift a locomotive or a house with 1 psi, if the pressure is applied over a large enough area.
.4 psi
limit is 86% of 93 psi = 86/100 x 93 psi ≈ 79.98 psi As the psi is measured to the nearest 0.1 psi, the safe limit is a measured 79.9 psi.
One psi (pounds per square inch) is 27.7 inches of water. An inch of water is a unit of pressure which will raise water one inch. A cubic inch of water weighs 0.0361 pounds, so one psi is one over 0.0361 or 27.7 inches of water.
Depends on the height. You gain approximately 0.4 psi for every foot of elevation; so at 10 foot elevation you will have ~4 psi.
If it is fresh water, and the surface is at sea level, then the pressure at the surface is 14.69 psi. As you submerge, then the pressure from the weight of the water above you is added to the air pressure above the water. For each foot that you descend, the water pressure will increase by 0.4331 psi, so at 328 feet deep, the water pressure is 142.0568 psi. Add the 14.69 psi air pressure to get 156.7468 psi.
At 300 feet of water depth the pressure is about 130 psi
Yes pressure is pressure
Hydrocleaning has various levels. "Low-pressure water cleaning" uses water pressure less than 5,000 psi, while "High-pressure water cleaning" uses water pressure between 5,000 to 10,000 psi. Higher still is "High-pressure water jetting" which is between 10,000 to 25,000 psi, and finally "Ultrahigh-pressure water jetting" uses pressures above 25,000 psi.
Pressure doesn't change when you change substance, 120 PSI in water equals 120 PSI in air.
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.
PSI stands for Pounds per Square Inch, it is a measurement of pressure. You can't "add psi". The only way to increase your water pressure is with a booster pump. You cannot add pressure, you have to mechanically add a force to pressurize the water (Usually by forcing it into a tank with an air bladder).
At 5,400 feet of water depth the pressure is about 2,341.1 psi
406 meters / 1,332.02 feet of water depth has a pressure of about 39.3 atmospheres or 577.6 psi.
4,000 PSI working pressure
The pressure of water increases about 0.445 psi per foot of depth. If we "zero" our meter so we have "no" pressure at the surface (ignoring the normal 14.7 psi of air pressure at sea level), at 18 feet we will have 0.445 psi/ft times 18 feet, which is 8.01 psi, or right at about 8 psi.
Water pressure at a depth of about 44 feet is about 20psi