ALOA Safe and Vault Services

Question 1

What is the UL Burglary Rating classification 'TL-15' for a safe?

Accepted Answer

The safe resists tool attack on the door for a net working time of 15 minutes using common mechanical and electrical tools

Answer

UL TL-15 (Tool-Resistant, 15 minutes) means the safe door resists penetration by common hand and power tools for a net working time of at least 15 minutes during UL testing.

Question 2

What is a 'combination lock' manipulation in safe servicing?

Accepted Answer

Opening a combination lock by feeling or listening for the dial's internal mechanism to determine the combination without drilling

Answer

Manipulation is the technique of opening a combination lock by sensing mechanical feedback (feel, sound, or light) from the lock's components to determine each number of the combination.

Question 3

Which type of safe lock uses electronic input (keypad) and a motorized bolt to control locking bolts?

Accepted Answer

Electronic safe lock (e.g., LaGard, Sargent & Greenleaf 6120)

Answer

Electronic safe locks use a keypad to accept a PIN, then drive a motorized cam or bolt to retract the lock's bolt work, allowing the door to open.

Question 4

What is the purpose of a 'relocker' in a safe?

Accepted Answer

A secondary locking device that engages when the lock is attacked, making the safe harder to open even if the primary lock is defeated

Answer

A relocker is a secondary security device (glass or spring-loaded) that triggers and locks the bolt work if the safe is attacked, preventing opening even if the primary lock is destroyed.

Question 5

What UL Group rating designates the highest security level for a dial combination lock used on safes?

Accepted Answer

Group 1R (manipulation-resistant)

Answer

UL Group 1R is the highest manipulation-resistance rating, requiring that the lock withstand at least 20 man-hours of expert manipulation attempts.

ALOA - Associated Locksmiths of America Practice Test

ALOA - Associated Locksmiths of America Practice Test

ALOA Safe and Vault Services