North Carolina Locksmith Practice Exam

Non-reversible door hardware refers to specific locking mechanisms or components that are manufactured to operate in one particular manner only. This means that they cannot be easily altered or adjusted to fit a different door orientation or handing once they have been installed. Such hardware is designed with specific entry or exit functionality that does not allow for field conversion, making it essential to select the correct hardware for the intended installation from the outset. In contrast, left hand and right hand doors, which refer to the handing based on the direction in which the door swings, can often be adjusted or changed in the field depending on the hardware design. Many door locks are built to accommodate both left and right-handed configurations, allowing for some flexibility during installation. Out of time typically relates to a term used in scenarios that do not directly pertain to the type of door hardware but rather to timing or scheduling issues, which is not relevant in this context. Thus, it distinctly highlights why the focus on non-reversible hardware is crucial in understanding limitations concerning field adjustments.