North Carolina Locksmith Practice Exam

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What is a lockset called that includes a key-operated cylinder in one or more knobs?

Deadbolt Lockset
Lever Lockset
Key-n-Knob Lockset
Mortise Lockset

The correct answer is: Key-n-Knob Lockset

The term used to describe a lockset that incorporates a key-operated cylinder within one or more knobs is known as a Key-n-Knob Lockset. This type of lockset is commonly used in residential settings and typically allows for locking and unlocking by using a key in the cylinder located in the knob itself. Key-n-Knob Locksets are designed for easy operation and installation, making them a popular choice. They can be found on exterior and interior doors, providing both security and convenience. Since this type of lockset integrates the locking mechanism directly into the knob, it is distinct from other types like deadbolts or lever locksets, which follow different operational designs and requirements. Understanding the unique characteristics of a Key-n-Knob Lockset helps distinguish it from other lock mechanisms, thus enhancing knowledge of various lock types and their functions within locksmithing.