Test Flashcards

The only available outlets are 2-pronged, however a power tool has a 3-pronged connector. What is the technician supposed to do?

Answer: Locate a 3-pronged outlet

The third prong on a power tool's connector is a ground wire, a critical safety feature designed to protect the user from electrical shock. Removing it or using an adapter that defeats the ground connection is extremely dangerous and violates electrical safety standards. The only safe and proper solution is to use a properly grounded 3-pronged outlet.

Please explain how to properly utilize security pins with a mushroom and spool:

Answer: They make standard lock picking attempts more difficult

Security pins like mushroom and spool pins are designed with irregular shapes (e.g., tapered, undercut, or spooled) that create false sets during picking. When a picker encounters a false set, it feels like a pin has been set, but it's actually binding in a way that prevents the lock from opening, making it much harder to determine the true shear line and successfully pick the lock.

GM 10-cut lock mechanism often denotes the following in the lock:

Answer: An even number of total cut depths

Some GM 10-cut lock mechanisms are designed with a specific keying system where the sum of the bitting depths across all cuts, or specific pairs of cuts, results in an even number. This characteristic is often part of their master keying or interchangeability systems, ensuring compatibility and functionality within their automotive lock designs.

How many trainees can an experienced technician supervise on a given job site?

Answer: 3

While specific regulations can vary by jurisdiction and industry, a common guideline or best practice in many trades, including locksmithing, suggests that an experienced technician can effectively supervise up to three trainees on a job site. This ratio allows for adequate instruction, direct oversight, and ensures safety and quality of work without overwhelming the supervisor.

Please specify the kind of lock that the sentence refers to: a key-in-knob lock that requires a key on each side to open.

Answer: An asylum or Institutional Lock function

An asylum or institutional lock function is characterized by requiring a key on both sides to open the door, meaning there is no free egress or entry without a key. This type of lock is specifically designed for environments where strict control over movement is necessary, such as psychiatric facilities or correctional institutions, to prevent unauthorized entry or exit.

What kind of locks typically employ rim cylinders?

Answer: Deadbolts

Rim cylinders are commonly used with surface-mounted deadbolts, which are installed on the interior surface of a door. The rim cylinder passes through the door and engages with the deadbolt mechanism on the inside, allowing the deadbolt to be operated by a key from the exterior.

The lock that General Motors vehicles most frequently have is...

Answer: A sidebar wafer lock

General Motors vehicles, especially older models and many current ones, frequently employ sidebar wafer locks for their ignition and door cylinders. These locks use a series of wafers that must be aligned by the key, and a sidebar then engages into a gate on each wafer to allow the plug to turn. This design offers good security and is cost-effective for automotive applications.

Frank Best invented the replaceable core locks, and this company is the most well-known one:

Answer: Best Lock Corporation

Frank Best is credited with inventing the interchangeable core (IC) lock cylinder, a revolutionary design allowing the core of a lock to be removed and replaced without disassembling the entire lock. He founded Best Lock Corporation in 1925, which quickly became the most prominent manufacturer and popularizer of these innovative replaceable core locks. The company's name is directly associated with his invention and legacy in the locksmith industry.

What is the name of an uncombinated key?

Answer: A key blank

An uncombinated key refers to a key that has not yet been cut or 'bitted' to match the specific internal mechanism (combination) of a lock. It is essentially a raw, uncut piece of metal shaped like a key. This uncut form is universally known as a key blank, ready to be cut and customized to operate a particular lock.

You must drill 12 1-inch holes in order to install a Preso-Matic. This assertion is

Answer: True

Preso-Matic locks are known for their unique push-button design and specific installation requirements. Installing certain models of Preso-Matic locks, particularly those requiring a complex internal mechanism or multiple fastening points, indeed necessitates drilling a precise pattern of holes. The assertion that 12 1-inch holes are required is a specific detail related to the installation of some Preso-Matic lock models, making the statement true within the context of locksmithing practices.