CML Keying Systems & Key Control 5

Question 1

What is 'key bitting array' (KBA) used for in master key system design?

Accepted Answer

Organizing all possible bitting combinations to systematically assign keys and avoid conflicts

Answer

The key bitting array is a systematic matrix of all available cut combinations used by designers to assign unique bittings to each lock while reserving combinations for master keys.

Question 2

In key control, what does 'patent protection' on a key blank mean?

Accepted Answer

The key blank design is legally protected, restricting its manufacture to the patent holder and authorized licensees

Answer

Patent protection prevents unauthorized manufacturers from producing the key blank, limiting supply to controlled channels and supporting key control programs.

Question 3

A facility manager wants a system where the security director can override all master keys. This requires a:

Accepted Answer

Great grand master key system

Answer

A great grand master key (GGMK) sits above grand master keys in the hierarchy, providing override access to the entire facility across all sub-systems.

Question 4

Which of the following best describes a 'key control policy' in an institutional setting?

Accepted Answer

A written organizational document governing key issuance, tracking, return, and consequences for loss

Answer

A key control policy is an administrative document that establishes procedures and accountability for managing keys throughout their lifecycle in an organization.

Question 5

What advantage does a 'dimple key' system offer for key control compared to standard flat key systems?

Accepted Answer

Dimple keys use cuts on the flat face of the blade, enabling more complex bitting combinations and harder-to-duplicate profiles

Answer

Dimple key systems use round drill-point cuts on the key's flat surface rather than edge cuts, allowing more possible combinations and making accurate duplication more difficult.

(CML) Certified Master Locksmith Practice Test

(CML) Certified Master Locksmith Practice Test

CML Keying Systems & Key Control 5