What is the maximum number of terminal lugs that can be placed on a single terminal strip stud?

The correct answer is based on standard practices in aircraft maintenance regarding the installation of terminal lugs on a terminal strip stud. A terminal strip is designed to facilitate electrical connections, where lugs are attached to provide a secure, conductive path for the electrical current.

Each terminal strip stud is typically rated to accommodate a specific number of terminal lugs. The maximum of four lugs ensures there is enough space for proper contact and connection without crowding. This consideration is essential for maintaining both the integrity of the electrical connection and the safety of the aircraft's electrical system.

Having more than this maximum number could risk connections becoming loose due to overcrowding, which in turn could lead to electrical failures or even fire hazards. Therefore, adhering to the maximum of four lugs allows for a safe and effective setup, ensuring optimal performance of the electrical systems in the aircraft.