NCCER Millwright Practice Exam

When dealing with chain links, what must be done if they are difficult to remove?

1. They should be replaced

2. They need to be welded

3. They have to be cut out and ______ back into place

4. They should be discarded

The correct answer is: They have to be cut out and ______ back into place

When chain links are difficult to remove, cutting them out and reinstalling new links is often the practical solution. This approach allows for the replacement of damaged or stuck links without compromising the integrity of the entire chain. Cutting out the problematic links provides the ability to install new ones, ensuring that the chain functions properly and safely. Additionally, options like replacing the links entirely without considering the specific issue at hand may not be necessary, especially if only a few links are problematic. Welding the links can create additional complications and is generally not the appropriate method for repair in this context, as it may affect the flexibility or functionality of the chain. Discarding the links might lead to unnecessary waste and does not address the issue at hand effectively. Thus, the most effective method involves removing the challenging links, allowing for a seamless and efficient repair process while maintaining the chain's operational capabilities.