What is the function of a fuel tank gauge?

The function of a fuel tank gauge is to monitor the fuel level within the tank. This is crucial for various reasons, such as ensuring that there is enough fuel for operational needs, helping to prevent fuel run-out, and aiding in managing fuel purchases. By providing a continuous reading of the fuel level, the gauge allows users to make informed decisions regarding fuel usage and planning. The accurate measurement of fuel levels contributes to overall efficiency and safety in fuel management.

Other functions like measuring the tank wall thickness, detecting leaks, or controlling temperature are not the primary purpose of a fuel tank gauge, which specifically focuses on the fuel level. This clear delineation of responsibilities helps in maintaining both the integrity and functionality of fuel storage systems.