ALOA CPS flashcards
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32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Shear line
- The boundary between the plug and the cylinder housing; when all pins align at this line, the plug can rotate.
- Bottom pin
- The pin in a pin tumbler lock that contacts the key; its length determines the key cut depth needed to align it at the shear line.
- Master wafer
- A thin spacer placed between bottom and driver pins to allow two different keys to operate the same cylinder at different shear lines.
- Deadlatch
- A spring latch with a plunger that prevents the latch from being slipped back when the door is closed, offering anti-shim protection.
- Mortise cylinder
- A threaded cylinder installed in a mortise lock body, secured by a set screw, commonly used in commercial doors.
- Key bitting
- The pattern of cuts on a key, defined by depth and spacing according to the manufacturer's specifications for that lock.
- Ward
- A fixed obstruction in a lock or keyway that restricts key entry to the correct profile, adding a basic level of security.
- Plug
- The rotating part of a cylinder that holds the bottom pins and is turned by the correct key.
- Transponder key
- An automotive key containing an RFID chip that communicates with the vehicle's immobilizer; it must be programmed to start the engine.
- Key code
- A sequence of numbers or letters that specifies the cuts for a key, often derived from the VIN or a code card.
- Immobilizer system
- An electronic anti-theft system that prevents the engine from starting unless a correctly programmed key is present.
- Laser-cut key
- A high-security automotive key with cuts on the side or face, often requiring a code or authorization to duplicate.
- Remote keyless entry
- A system allowing doors to be locked or unlocked via a radio-frequency remote; fobs may require synchronization after battery replacement.
- Air wedge
- A inflatable tool inserted between a vehicle door and frame to create a gap for long-reach tools during non-destructive entry.
- Key duplication
- The process of copying an existing key; for high-security or transponder keys, authorization or programming may be required.
- VIN
- Vehicle Identification Number; a 17-character code used to identify a vehicle and, with authorization, to obtain key codes.
- Safe manipulation
- A non-destructive opening technique that involves feeling for wheel gates and contact points to determine the combination.
- Relocker
- A device that fires during a break-in attempt, jamming the boltwork to prevent opening even if the lock is compromised.
- TL-15 rating
- A safe rating indicating resistance to a sophisticated tool attack for at least 15 minutes; higher numbers indicate greater resistance.
- Wheel pack
- The set of rotating wheels in a combination lock that must align with the fence to allow the bolt to retract.
- Fence
- The part of a combination lock that drops into the wheel gates when the correct combination is dialed, allowing the bolt to retract.
- Fire rating
- A specification indicating the maximum internal temperature a safe will reach during a fire test, often 350°F for 1 hour.
- Boltwork
- The system of bolts that secures a safe door to the body; its strength and number affect resistance to prying and peeling.
- Drill point
- A specific location on a safe door where drilling can bypass the lock or allow viewing of the wheel pack.
- Proof of authority
- Documentation such as a government ID or work order that verifies a customer's right to request locksmith services.
- Liability insurance
- Coverage that protects a locksmith business against claims of negligence or errors, essential for financial protection.
- Written estimate
- A document provided before work begins that itemizes expected charges; it helps prevent disputes and ensures transparency.
- Licensing requirement
- A legal obligation in many jurisdictions for locksmiths to hold a license, bond, or registration to operate legally.
- Confidentiality
- The ethical duty not to disclose customer security information, such as key codes or alarm codes, without consent.
- Egress code
- Building and fire regulations requiring doors to open easily from the inside without a key, to ensure safe exit.
- Job record
- Documentation of services performed, including date, customer, parts used, and signature, to protect against liability claims.
- Bait-and-switch
- An unethical pricing tactic where a low advertised price is replaced by a much higher charge after the work begins.