CML Keying Systems & Key Control

Question 1

What is a master key system?

Accepted Answer

Key that opens multiple locks

Answer

A master key system is a specialized keying arrangement where a single key, known as the master key, is designed to open multiple different locks within a specific system. While each lock also has its own unique change key, the master key provides convenient access for authorized personnel across a designated area or facility. This system allows for hierarchical access control and simplified key management.

Question 2

Why is key control important in locksmithing?

Accepted Answer

Prevent unauthorized duplication

Answer

Key control is paramount in locksmithing to prevent the unauthorized duplication of keys, which poses a significant security risk. By implementing strict procedures for key issuance, tracking, and retrieval, organizations can limit who has access to keys and ensure that only authorized individuals can obtain copies. Effective key control safeguards premises against illicit entry and maintains the integrity of the security system.

Question 3

What does a key bitting code represent?

Accepted Answer

Sequence of cuts

Answer

A key bitting code represents the specific sequence and depth of cuts on a key's blade. This unique code directly corresponds to the internal pin configuration of a lock cylinder, allowing the key to align the pins correctly and operate the lock. Understanding the bitting code is fundamental for locksmiths to cut new keys accurately, rekey locks, or troubleshoot locking mechanisms.

Question 4

What is the purpose of a key control log?

Accepted Answer

Track key issuance and return

Answer

The purpose of a key control log is to meticulously track the issuance, return, and current location of all keys within a system. This detailed record helps maintain accountability for each key, identifying who has possession of which key at any given time. A well-maintained log is crucial for security management, preventing unauthorized access, and quickly addressing lost or stolen keys.

Question 5

Which type of key system offers the highest security?

Accepted Answer

Restricted key system

Answer

A restricted key system offers the highest security because its keys are legally protected against unauthorized duplication. These keys typically feature patented designs or unique keyways, meaning blanks are not readily available to the public and can only be cut by the original manufacturer or authorized locksmiths. This significantly limits the risk of illicit key copying, enhancing overall security and control.

(CML) Certified Master Locksmith Practice Test

(CML) Certified Master Locksmith Practice Test

CML Keying Systems & Key Control