CFL Safe & Vault Technologies 2 — Questions and Answers
Question 1: What is the primary purpose of a relocker device in a high-security safe?
- To prevent the bolt work from retracting if the lock is attacked (Correct answer)
- To automatically dial the combination after a power outage
- To reset the time-delay mechanism after incorrect entries
- To engage the boltwork from the inside during normal operation
Correct answer: To prevent the bolt work from retracting if the lock is attacked
A relocker is a secondary locking device that triggers and prevents bolt retraction if the primary lock or glass plate is attacked or destroyed.
Question 2: Which type of safe body construction is considered most resistant to peel attacks?
- Single-wall steel plate
- Composite concrete-and-steel fill (Correct answer)
- Hardened steel plate with inner liner
- Expanded metal mesh fill
Correct answer: Composite concrete-and-steel fill
Composite bodies filled with concrete (or concrete and steel) resist peel attacks because the material cannot be easily bent or cut away in layers.
Question 3: A forensic locksmith discovers a vault door with a glass relocker. What does this glass plate protect?
- The hinge pins from extraction
- The combination dial spindle from pulling
- The lock mechanism from drill attacks on the lock case (Correct answer)
- The boltwork from hydraulic spreading
Correct answer: The lock mechanism from drill attacks on the lock case
The glass relocker sits behind the lock and shatters when a drill reaches it, releasing a spring-loaded bolt that blocks the boltwork.
Question 4: What does UL Residential Security Container (RSC) rating primarily evaluate?
- Fire endurance at 1200°F for 30 minutes
- Resistance to hand tool attack for 5 minutes net working time (Correct answer)
- Resistance to torch cutting for 15 minutes
- Resistance to drill attack for 10 minutes net working time
Correct answer: Resistance to hand tool attack for 5 minutes net working time
UL RSC tests require the container to resist entry using common hand tools for a net working time of 5 minutes.
Question 5: In safe forensics, what does the term 'wheel pack' refer to?
- The hardened steel wheels protecting the safe exterior corners
- The set of combination wheels inside a dial combination lock (Correct answer)
- The gear assembly driving the relocker springs
- The anti-drill plates mounted around the boltwork
Correct answer: The set of combination wheels inside a dial combination lock
The wheel pack is the set of rotating discs inside a combination lock whose notches must align to allow the fence to drop and open the lock.
Question 6: Which attack method involves using a drill to create a small hole to view or manipulate internal lock components?
- Peeling
- Punching
- Scoping (Correct answer)
- Pulling
Correct answer: Scoping
Scoping involves drilling a small hole and inserting a borescope or light to observe wheel positions or fence alignment without fully defeating the safe.
Question 7: What is the function of the 'anti-fish' feature found in some safe deposit box frames?
- It prevents water ingress during floods
- It blocks access to adjacent boxes through the opened box cavity (Correct answer)
- It secures the hinge from being cut with a saw
- It prevents the renter key from being duplicated
Correct answer: It blocks access to adjacent boxes through the opened box cavity
Anti-fish baffles or partitions inside the frame prevent someone from reaching through an open box cavity to manipulate or steal contents of neighboring boxes.
CFL Safe & Vault Technologies 2
What is the primary purpose of a relocker device in a high-security safe?