In a butt joint splice between two pieces of 2-inch thick plate, what is the maximum allowable misalignment of the plates?

In a butt joint splice between two pieces of 2-inch thick plate, the maximum allowable misalignment of the plates is indeed 1/8 inch. This specification is crucial for ensuring the structural integrity and quality of the weld. Excessive misalignment can lead to stress concentrations, ineffective welding, and potential failure of the joint under load.

Using a standard of 1/8 inch for misalignment allows for a satisfactory fit-up that facilitates proper joint penetration and prevents issues such as incomplete fusion or inadequate strength. In welding practice, maintaining tight tolerances is essential, especially for thicker materials, to achieve a sound weld that will perform effectively in its intended application.

The other options indicate larger tolerances, which would not be acceptable in a typical welding procedure for such thickness, as they could compromise the quality and strength of the finished weld.