What is the purpose of an alignment jig?

• A. To provide support for heavy machinery
• B. To assist in accurate alignment adjustments temporarily
• C. To enhance the operational speed of machines
• D. To reduce machine wear during operation

Answer: (B)

The purpose of an alignment jig is to assist in making accurate alignment adjustments temporarily. It serves as a tool that holds machinery components in the correct position while alignment calculations and adjustments are being made. This ensures that machines are aligned properly according to specified tolerances before finalizing their installation.

Using an alignment jig is crucial in the alignment process because it helps to account for any shifts or movements that may occur during adjustments, thereby allowing millwrights to achieve precision in alignment. Once the desired alignment is confirmed, the jig can be removed, ensuring that the machinery remains in the optimal position for operation.

While providing support for heavy machinery is important, and it aids in stable setups, that is not the primary function of an alignment jig. Enhancing operational speed and reducing machine wear are outcomes that can result from proper alignment, but these are not the direct purposes of the jig itself. The primary focus is on enabling accurate temporary alignment adjustments.