What is the gauge pressure exerted at the bottom of a water tank that is 45 feet high and has a 35 foot diameter, when the tank is 75% full?
Question 1 Explanation:
In this problem it's critical to determine what information is needed. The diameter of the tank does not affect the pressure. You only need to know the height of the tank and the water level.
In this case, the tank is only 75% full. To calculate the height of the water multiply the tank height by 0.75:
45 ft * 0.75 = 33.75 ft
Now, divide the water level by 2.31, the psi for each foot of water:
33.75 ft / 2.31 psi/ft = 14.6 psig
