North Carolina Locksmith Practice Exam

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What does 'Bottom of the Blade' refer to in key anatomy?

The edge opposite the cut of the key
The area where a key is inserted into a lock
The decorative part of the key
The middle section of the key blade

The correct answer is: The edge opposite the cut of the key

'Bottom of the Blade' in key anatomy refers to the edge opposite the cut of the key. This area does not contain the bitting— the unique cuts that interact with the lock's pins—but is instead a flat surface that allows the key to be inserted into the lock. Understanding the anatomy of a key is crucial for locksmiths, as it helps them determine how the key engages with various locking mechanisms. The terminology used in key design is important for ensuring proper key duplication or for troubleshooting issues with locks. The other aspects of key anatomy mentioned, such as the area where the key is inserted into a lock or the decorative part of the key, do not specifically define what the 'Bottom of the Blade' is, illustrating the importance of precision in terminology within locksmithing practices.