True or False: The assembly jig is rotated 90 degrees from the engineering drawing before use.

The assembly jig is designed to provide a stable and accurate framework for assembling parts according to the engineering drawing specifications. When the statement says that the assembly jig is rotated 90 degrees from the engineering drawing before use, it suggests that the orientation must be adjusted to align properly with the assembly requirements as indicated in the drawing.

In some cases, certain assemblies require a specific orientation to ensure that all components fit together correctly. Rotating the jig may be necessary to achieve the correct alignment for part installation, fastener placement, or to accommodate assembly procedures that follow the drawing's instructions. Therefore, if the assembly jig is indeed rotated 90 degrees in practice, then the statement holds true.

It's essential to note that not all assemblies will necessitate this specific orientation. However, when the correct assumption is that assembly jigs generally need to be aligned or adjusted based on the engineering drawings to facilitate proper assembly, then acknowledging this practice as either standard or common is insightful.