North Carolina Locksmith Practice Exam

Question: 1 / 435

Which type of key only operates one cylinder or goes with keyed alike cylinders?

Master Key

Change Key

The type of key that operates only one cylinder or works with keyed alike cylinders is indeed the change key. A change key is typically designed to operate a specific lock or a series of locks that are set to the same keying, allowing for individual access while ensuring that no other keys in the system can operate that specific cylinder.

This is particularly important in systems where different users need access to specific locks without granting broader access to all locks in the system. In contrast, master and grand master keys function in multi-tiered systems, allowing broader access across different cylinders, which is not the case for a change key. Thus, the change key recognizes the need for specificity in locking systems.

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Grand Master Key

Great Grand Master Key

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