CPL High-Security & Specialty Lock Systems Flashcards
6 cards from real CPL practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CPL High-Security & Specialty Lock Systems flashcards as text
Which type of lock is most appropriate for a high-security application requiring both key control and easy rekeying without disassembly?
Answer: Interchangeable core (IC) system with a high-security restricted keyway
Interchangeable core systems allow rekeying by swapping the core with a control key, and when combined with restricted keyways, provide both operational efficiency and key control.
What is a 'false set' in the context of picking a high-security lock with a sidebar?
Answer: A position where the shear line aligns but the sidebar prevents plug rotation
In sidebar-equipped locks, pins can reach shear line alignment (creating a 'false set' sensation) while the sidebar remains engaged, frustrating single-factor picking.
ASSA Abloy's CLIQ system combines a mechanical key with which added security element?
Answer: An embedded electronic chip in the key that must authenticate with the lock before mechanical operation
CLIQ keys contain an electronic chip that performs a cryptographic handshake with the lock cylinder before the mechanical rotation is permitted.
When drilling out a high-security cylinder as a last resort, which point is typically most vulnerable to drilling despite anti-drill features?
Answer: The shear line between the plug and shell, targeting the front pin chamber
Even with anti-drill pins, the front pin chamber at the shear line remains the primary attack point, though hardened inserts make it significantly more difficult.
A 'restricted' key blank differs from a standard key blank primarily in that:
Answer: It is sold only to authorized dealers and cannot be legally duplicated on standard key-cutting machines without authorization
Restricted key blanks are controlled through dealer agreements and often proprietary keyway geometry, limiting duplication to authorized channels.
Which standard specifically addresses the requirements for high-security padlocks used in government and critical infrastructure applications in the U.S.?
Answer: Federal Specification FF-P-110
Federal Specification FF-P-110 establishes requirements for high-security padlocks used in federal government and critical infrastructure applications.