Master Key Systems & Key Control Flashcards

What is a 'restricted keyway' used for in key control systems?

Answer: Preventing unauthorized duplication by making the keyway proprietary

Restricted keyways use proprietary key profiles only available through authorized dealers, preventing customers from duplicating keys at standard hardware stores.

In master key system terminology, what is 'cross-keying'?

Answer: When a combination of bittings unintentionally creates a working key for an unintended lock

Cross-keying occurs when the combination of master key and change key bittings inadvertently creates a phantom key that operates an unintended lock in the system.

What is a 'key record' system used for in professional locksmith practice?

Answer: Documenting all key codes, quantities issued, and authorized key holders

A key record system documents all key bitting information, number of keys issued, and who holds each key to maintain full accountability for a key system.

What does it mean to 'key alike' multiple locks?

Answer: Having multiple locks operate with the same single key

Keying locks alike means multiple locks share the same bitting so they can all be operated by one key, commonly used for convenience in residential or small commercial settings.

What is the primary purpose of a secure 'key cabinet' in a key control system?

Answer: Securely housing issued keys and tracking their chain of custody

A key cabinet provides secure, organized storage for keys while tracking their availability and chain of custody, ensuring accountability within an organization.

In master key system design, what does 'total positions' (TP) refer to?

Answer: The number of possible bitting depth variations available per pin position

Total positions refers to the number of available bitting depth increments per pin chamber, which directly determines how many unique key combinations can exist in the system.

Which of the following is a PRIMARY advantage of a master key system in a large facility?

Answer: Authorized users can access multiple areas with a single key instead of carrying many keys

The primary advantage of a master key system is convenience and practicality—authorized personnel such as managers or security staff can access all necessary areas with one key.