North Carolina Locksmith Practice Exam

Question: 1 / 435

In locksmithing, what does the term "impression" refer to?

The cutting of a key

The marking left by a tumbler

The term "impression" in locksmithing refers to the marking left by a tumbler in a lock. This marks are created when a key is inserted into a lock and turned. As the key interacts with the lock's internal components, particularly the tumblers, it creates an impression that reflects where the key has made contact with the tumblers to move them to their correct positions. This is a crucial concept in locksmithing, as these impressions can be used to deduce the correct cuts needed for a new key or to understand how the lock functions.

This definition emphasizes the importance of understanding how locks operate at a mechanical level, as recognizing these impressions can ultimately help in key duplication or lock picking. The other options don't align with the specific terminology of locksmithing, as they refer to different aspects of lock maintenance or operation.

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The method of removing a lock

The analysis of a lock’s mechanism

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