Tools
This clamping device that holds an attachment. Holds the drill bit in a drill.
Chuck
An electric power supply where the current flows in one direction only.
Direct current DC
A positive offer of advice intended to help someone correct mistakes or improve actions.
Constructive Criticism
A written order by the owner of a project for the contractor to make a change in time, amount or specifications.
Change order
The amount of space contained in a two-dimensional object such as a rectangle, circle, or square.
Area
This substance, such as sandpaper, is used to wear away material.
Abrasive
Rating that describes the maximum amps a battery can provide continuously for up to 60 minutes.
Amp hour Ah
A process that involves respecting others, listening to what is being said, and understanding what is being said.
Active listening
Sideview of a building or object, showing height and width.
Elevation drawings
A very hard material make of tungsten carbide and heavy metals such as cobalt.
Carbide
This small, T shaped steel piece used to open and close the chuck on power drills.
Chuck Key
The common power supplied to most all wired devices, where the current reverses its direction many times per second.
Alternating Current AC
A program in which you gain valuable skills on the job under the instruction of more experienced professionals, often making money as you obtain training.
Apprenticeship
A work area large enough for a person to work in, but with limited means of entry and exit and not designed for continuous occupancy.
Confined space
A room or area that is used for scientific research or specialized processes' such as the manufacture of semiconductors.
Clean room
The use of computers to digitally sketch construction designs, allowing other people to see how aspect's of a structure would look and work together when built.
Computer aided design CAD
Engineered drawings that show all electrical supply and distribution.
Electrical Plans
A specialized ruler used in making or measuring reduced scale drawings
Architect's scale
Capable of easily igniting and rapidly burning.
Combustible
The length of a straight line that crosses form one side of a circle, through the center point, to a point on the opposite side.
Diameter
A material made with thin cloth backing, coated with an abrasive that is tightly bonded to the backing.
Emery Cloth
The opposition of current flow in an electrical circuit
Resistance
A traditional method of reproducing technical drawings using a contact print process and light-sensitive paper that resulted in white lines on a blue background.
Blueprints
A knot used to form a loop that neither slips nor jams.
Bowline
A line on a drawing with a measurement indicating length.
Dimension line