North Carolina Locksmith Practice Exam

Which key section enters more than one, but not all keyways in a multiplex key system?

1. Multi Section Key Blank

2. Neuter Bow

3. Neck of Key

4. Key Way

The correct answer is: Multi Section Key Blank

In a multiplex key system, a multi section key blank is specifically designed to function with multiple key sections, allowing it to enter more than one but not all keyways within that system. This design is particularly useful for situations where different levels of access are needed within a facility, allowing certain keys to operate several locks while restricting others. This versatility helps in managing access control without the need for a separate key for every single lock, thus simplifying security procedures and inventory management. The other terms refer to different concepts in key design. A neuter bow refers to a specific style of the bow (the end of the key where a person holds it) that allows for functionality across incompatible keyways but does not indicate versatility in entering multiple keyways necessary for the multiplex functionality. The neck of the key is the portion that connects the bow to the bit, and while it plays a role in the overall design, it does not determine the ability of a key to fit into multiple keyways. The keyway itself is the shape or design of the lock mechanism that dictates which keys can enter, but it does not describe a type of key blank itself. Thus, the multi section key blank is the most accurate descriptor of what enters multiple keyways in a multiplex system.