The transaxle shown in a standard illustration is engaged in what gear if both forward and reverse gears function normally?

The transaxle is likely engaged in the first gear if both forward and reverse gears function normally. In a standard manual transmission, the first gear is typically the gear used to start moving the vehicle from a standstill. It provides the necessary torque to propel the vehicle forward initially and allows for controlled acceleration.

When a transaxle is in first gear, it also maintains the ability to shift to reverse without any issues, which indicates that the system is functioning correctly. This gear selection ensures that the vehicle can move in the forward direction while still having the option to reverse, signifying that the transmission's internal components, such as synchronizers and gear meshes, are properly engaged and functioning as intended.

In contrast, if the transaxle were engaged in a higher gear, such as second, third, or fourth, the required torque for starting movement from a complete stop would not be adequate. This would lead to difficulties in moving the vehicle, thus affecting the normal operation of both forward and reverse functions. Therefore, first gear represents the scenario where both functionalities can operate efficiently.