CFL Safe & Vault Technologies 3

Question 1

A Group 2 combination lock as rated by UL 768 is required to resist manipulation for a minimum of how many hours?

Accepted Answer

20 hours

Answer

UL 768 Group 2 requires the combination lock to resist a skilled manipulation attempt for a minimum of 20 man-hours.

Question 2

What distinguishes a UL TL-15 rated safe from a UL TL-30 rated safe?

Accepted Answer

TL-15 is tested for 15 minutes; TL-30 is tested for 30 minutes of net working time

Answer

Both TL-15 and TL-30 are tested with power tools, but TL-15 must resist for 15 minutes and TL-30 for 30 minutes of net working time.

Question 3

What term describes the hardened steel insert embedded in a safe body to deflect drill bits away from critical components?

Accepted Answer

Hardplate

Answer

A hardplate is a plate of hardened steel or carbide material positioned to deflect or destroy drill bits aimed at the lock or boltwork.

Question 4

In a forensic examination of a safe, evidence of 'pulling' would most likely show damage to which component?

Accepted Answer

The combination dial and spindle area

Answer

Pulling involves attaching a puller to the combination dial or spindle to extract the spindle and expose the lock mechanism, leaving characteristic damage around the dial area.

Question 5

What is a time-delay feature in an electronic safe lock designed to prevent?

Accepted Answer

Opening by coercion — forcing the user to open immediately

Answer

Time-delay forces a mandatory waiting period before the lock will open after a correct code, making robbery-by-coercion impractical because the criminal must wait in a monitored environment.

(CFL) Certified Forensic Locksmith Practice Test

(CFL) Certified Forensic Locksmith Practice Test

CFL Safe & Vault Technologies 3