North Carolina Locksmith Practice Exam

The term "Horizontal Group Master Key" refers to a master key system where the organization of the key combinations is arranged horizontally, making it easier to read and understand the relationships between the different keys and locks involved. In a two-pin master key system, this format allows locksmiths to quickly verify combinations and maintain an efficient key management system. This is especially helpful in large installations where numerous locks are under the same master key structure, as it facilitates the organization and retrieval of keys.

In contrast, the other options may relate to different master key configurations or groupings, but they do not specifically describe the horizontal arrangement that characterizes the Horizontal Group Master Key format. This specific layout provides clear visibility of the combinations, promoting better security management and ease of use for locksmiths.