North Carolina Locksmith Practice Exam

A deadlocking latch refers to a latchbolt that is equipped with a deadlocking mechanism, which enhances security. This mechanism operates by allowing the latch to be secured in such a way that it cannot be retracted by sliding the latch open without the use of a key or similar unlocking method. When the latch is engaged, the deadlock feature typically prevents any manipulation from outside the lock, such as the use of a shim or other tools, which could otherwise retract the latch.

This added layer of security is crucial in scenarios where unauthorized access is a concern, as it effectively makes it more challenging for someone to force entry by simply pushing or prying against the latch. In contrast, other options do not fully encapsulate the specific nature and function of a deadlocking latch. For example, a bolt that requires a specific key may refer to a standard locking mechanism but does not denote the unique deadlocking functionality. Similarly, a latch requiring a fingerprint signifies a type of biometric locking, which is unrelated to the deadlocking feature. Lastly, a spring-operated lock mechanism simply indicates a basic lock design without the added complexities of deadlocking, thereby lacking the security benefits that a deadlocking latch provides.