What are potential ways a new thermocouple can be damaged during installation?

The correct answer addresses how physical handling and placement of a thermocouple during installation can lead to its damage. Kinking the thermocouple creates stress points that can compromise its integrity, potentially leading to inaccurate readings or complete failure. Making sharp bends also places undue strain on the thermocouple, which is often sensitive to changes in its shape and position. Over-tightening the fittings can damage the thermocouple connections or the thermocouple itself, leading to poor electrical contact or breakage.

In contrast, using a thermocouple in the wrong environment pertains to operational misuse rather than installation-related damage. Connecting a thermocouple to the wrong circuit is more focused on electrical compatibility issues post-installation, and failing to test it beforehand does not directly relate to its physical installation process. While these aspects are important for the overall functionality of the thermocouple, they do not address the immediate risks associated with installation.