North Carolina Locksmith Practice Exam

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Which term refers to a bitting list of change keys and master keys arranged in sequence of progression?

Progression Column
Progression List
Master Key Sequence
Change Key Index

The correct answer is: Progression List

The correct term that refers to a bitting list of change keys and master keys arranged in sequence of progression is known as the Progression List. This term is utilized in locksmithing to describe a systematic arrangement that allows locksmiths to understand the relationship between different keys within a master key system. The Progression List typically shows how change keys derive from master keys and their corresponding bitting sequence. By observing the Progression List, a locksmith can efficiently manage key distributions, ensuring that master keys can access numerous locks while also maintaining security by limiting the access of change keys. This organization and clarity are crucial for effective locking systems. Other terms, while related, do not precisely describe this systematic arrangement. For instance, a Progression Column might refer to a specific aspect of the overall list structure rather than the entire sequence. Master Key Sequence might imply the order of master keys alone without highlighting the relationship to change keys. Change Key Index could suggest a catalog or reference of change keys, lacking the context of the arrangement in progression as a whole.