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, the readings on those gauges will be influenced primarily by the fluid height above them regardless of the size of the storage tanks. This means that if both gauges are indicative of the pressure due to the height of the fluid column above them, the reading will reflect the hydrostatic pressure created by that column.

If both tanks have the same fluid height, the pressure at both gauges will be the same, leading to identical readings. Hence, irrespective of the volume or dimensions of the tanks, as long as the elevation and fluid height are the same, the gauges must read the same pressure.

The size of the tanks does not affect the relationship between the height of the liquid column and the hydrostatic pressure. Thus, all factors considered, the gauge readings will be equal when measured at the same elevation with the same height of liquid above them.