In an unattended gasoline pump test, an invalid amount is selected. What range does this correspond to?

In the context of testing an unattended gasoline pump, an invalid amount selected typically refers to values that exceed the specified limit for valid transactions. The correct range representing an invalid amount is 50.1 gallons or more. This implies that the pump has a maximum allowable limit for gasoline dispensation, which is 50.0 gallons. Therefore, any selection above this threshold is deemed invalid, as it surpasses the operational limits of the pump.

When conducting tests, it's essential to identify the boundaries of valid and invalid inputs. In this case, any amount that is greater than 50.0 gallons indicates a misuse or malfunction of the system, thus categorizing it as an invalid transaction. Understanding these parameters enables effective testing of the system's ability to handle exceptional or erroneous inputs, ensuring that the pump operates within its intended limits while providing correct feedback to users or safety systems in place.