If two pressure gauges are at the same elevation on different storage tanks, what will be the reading on the gauge of the larger tank?

When two pressure gauges are located at the same elevation but on different storage tanks, the pressure readings will primarily depend on the height of the liquid column present above each gauge. Since the gauges are at the same elevation, the pressure head, which is based on the height of the liquid (fluid column), will produce identical readings as long as both tanks contain liquid at the same density and there are no additional factors (such as differences in fluid type or tank configurations affecting the atmospheric pressure).

Thus, if both tanks are filled with the same liquid and are at the same elevation, the pressure gauges will display the same reading regardless of the tank size. The difference in tank size does not affect the pressure reading at the gauge level, as pressure is a function of fluid height and density, not the total volume of fluid in the tank.

In summary, when both gauges are placed at the same elevation, the physical laws governing fluid statics dictate that the pressure will be the same in both tanks, leading to identical readings on the gauges.