CML CML Safe & Vault Servicing

Question 1

What is the first step a CML technician should take when a customer reports a safe with an unknown combination?

Accepted Answer

Verify ownership documentation before attempting any entry

Answer

Verifying ownership documentation protects the locksmith from liability and ensures legal authorization before any entry attempt.

Question 2

Which safe lock type uses a relocker mechanism that activates when the glass plate is broken?

Accepted Answer

Glass relocker

Answer

A glass relocker is a secondary locking mechanism that triggers when an intruder attempts to drill or punch through the lock area.

Question 3

What UL rating is required for a safe to be classified as TL-15?

Accepted Answer

Withstands 15 minutes of attack with common and electric tools

Answer

UL TL-15 means the safe resists 15 net working minutes of attack using common hand tools, electrical tools, and picking tools.

Question 4

When drilling a safe, which area is typically targeted to bypass the combination lock?

Accepted Answer

The drill point above the dial to access the lock lever pack

Answer

Drilling above the dial provides access to the lock's lever pack or wheel pack, allowing the technician to view and align the gates.

Question 5

A Group 2 combination lock differs from a Group 1 lock primarily in that it:

Accepted Answer

Offers lower manipulation resistance under UL standards

Answer

Group 2 locks meet a lower UL standard for manipulation resistance compared to Group 1 locks, which require significantly more time to manipulate.

(CML) Certified Master Locksmith Practice Test