North Carolina Locksmith Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

The correct answer is indeed deadlocks, as they are specifically designed with mechanisms that resist pressure in the unlocking direction. This means that when force is applied to the lock’s components, the deadbolt remains firmly in place, providing an added layer of security against forced entry.

Deadlocks typically engage a bolt that is not easily manipulated or moved without the correct key or combination, and they cannot be easily retracted by external force due to their design. This feature minimizes the risk of unauthorized access, making deadlocks a preferred choice in both residential and commercial security.

In contrast, single cylinder locks, biometric locks, and handle locks do not provide the same level of resistance against applications of force when being unlocked. Single cylinder locks can often be susceptible to manipulation since they have a mechanism that might allow for easier access with tools. Biometric locks rely on biological identification, which, while advanced, doesn't always ensure resistance against force. Handle locks primarily function as a means for ease of use but can be compromised with leverage or force.