ALOA ICRL study materials
ALOA ICRL study resources

ALOA ICRL flashcards

ALOA ICRL · Build recall with a focused review session.

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

ANSI/BHMA Grade 1
The highest commercial duty rating for locks and hardware under ANSI/BHMA standards, indicating tested durability and cycle performance above Grade 2 and Grade 3.
Fail-secure strike
An electric strike that stays locked when electrical power is removed and unlocks only when energized; used where loss of power should not release the door.
Classroom lock function
A lock whose outside key locks or unlocks the door while the inside lever remains free for immediate egress at all times.
Panic hardware release force
NFPA 101 limits the force to release panic hardware to no more than 15 pounds applied in the direction of egress travel.
Door closer sweep speed
The adjustment controlling how quickly a door closes from a fully open position to the point just before the latch engages.
SFIC
Small-format interchangeable core; a compact removable cylinder core operated by an operating key and removed or installed with a separate control key.
Fire exit hardware
Exit hardware listed for use on fire-rated doors; it provides panic release and must be installed without compromising the fire door assembly's label.
Door clear width
The measured width of the egress opening with the door open 90 degrees, typically about 32 inches for a 36-inch door leaf.
Grand master key
A key that operates all locks in a master key system, including every master-keyed group and every change-key lock beneath it.
Change key
A key that operates only one lock or one group of identically keyed locks within a master key system.
MACS
Maximum adjacent cut specification; a keying rule limiting the difference between neighboring cuts to reduce key binding, wear, and master-keying problems.
Control key
A key used to remove or install an interchangeable core; it is separate from the operating key and the master key.
Construction keying
A temporary keying arrangement allowing construction keys to operate locks until turnover, after which permanent keys operate and construction keys no longer work.
Key control log
A record tracking each key or credential by holder, issue date, return date, and associated lock or core to detect losses.
Patented keyway
A keyway protected by patent and controlled blank distribution, limiting unauthorized duplication better than a 'Do Not Duplicate' stamp alone.
Master key system levels
The hierarchy of grand master, master, submaster, and change keys that defines which keys operate which groups of locks.
Fail-safe lock
A lock that unlocks automatically when electrical power is removed, allowing egress during power failure or fire alarm activation.
Request-to-exit sensor
A device that detects a person approaching or using an egress door and signals the access controller to release or shunt the lock.
Door position switch
A sensor that reports whether a door is open or closed to the access control system; it does not request egress.
OSDP
Open Supervised Device Protocol; a bidirectional access-control communications standard that supports encrypted Secure Channel between readers and controllers.
Voltage drop formula
Vdrop equals two times one-way conductor length times current times conductor resistance per unit length; use it to verify device voltage.
Delayed egress release
A code-permitted lock delay that must release within 15 seconds after force is applied to the door and sound a local alarm.
Maglock
An electromagnetic lock that holds a door closed magnetically and is fail-safe, releasing when power is removed.
Access-controlled egress door
An egress door with access control that requires an egress-side sensor, manual release, and release on fire alarm or power loss.
NFPA 101
The Life Safety Code, a model code addressing means of egress, fire protection features, and occupancy-specific life-safety requirements.
IBC
The International Building Code, a model building code that regulates construction, occupancy, egress, and fire-resistance requirements.
ADA door opening force
For interior hinged doors, the maximum opening force is 5 pounds; fire doors may have an authority-approved minimum.
NFPA 80 inspection
Fire door assemblies must be inspected and tested after installation and at least annually thereafter, with records retained.
MasterFormat Division 08
The construction specification division covering openings, doors, frames, door hardware, glazing, and related opening components.
MasterFormat Division 28
The construction specification division covering electronic safety and security, including access control, intrusion detection, and fire alarm.
CPTED
Crime Prevention Through Environmental Design; a security planning approach using natural surveillance, access control, territorial reinforcement, and maintenance.
Occupant load 50 rule
Assembly and educational occupancies with an occupant load of 50 or more generally require panic hardware on egress doors.