Which of the following methods is NOT commonly used for precision alignment?

Precision alignment is crucial in maintaining the functionality and longevity of rotating machinery. Among the methods listed, linear measurement is not typically categorized as a standard technique for precision alignment.

The Rim and Face technique involves measuring the gap between a drive component and its driven counterpart at different points, which helps ensure proper alignment by accommodating any imperfections in manufacturing. The Reverse-Dial method utilizes dial indicators to measure angular and vertical misalignments and is effective due to its simplicity and accuracy. Laser Alignment, on the other hand, employs laser beams for precise alignment and is highly regarded for its efficiency and accuracy in real-time measurements.

In contrast, linear measurement, while useful in various applications, does not provide the necessary precision in aligning rotating components as effectively as the other techniques mentioned. This method typically focuses on measuring the distance rather than addressing the nuances of angular and vertical alignment, making it less suitable for precision tasks in this context.