North Carolina Locksmith Practice Exam

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Which of the following describes hardware with no field-changable hand?

Non-Reversible
Out of Time
Left Hand (Man Door)
Right Hand (Man Door)

The correct answer is: Non-Reversible

The term "non-reversible" is used to describe hardware that cannot be adjusted or changed to accommodate different handing preferences in the field. This means that once the hardware is manufactured, it is set for a specific direction of swing or installation and does not allow for any modifications to switch its operational direction. In the context of locksmithing and door hardware, understanding the concept of non-reversible hardware is important when determining how a door will function in its specific installation. Hardware that is non-reversible can limit options for installers, requiring careful planning and selection to ensure the correct product is chosen from the start. This inability to change the handing once installed distinguishes it from reversible hardware, which provides flexibility for installation on either left or right-hand doors. Recognizing the significance of non-reversible hardware helps locksmiths make informed decisions about door installations and can prevent issues related to functionality and security later on. The other options pertain to specific types of handing or time-related terminology that doesn't accurately address the idea of a static, unchangeable hardware characteristic.