CAD Software
This 3D command adds volume to a 2D profile by moving it along a straight path.
What is Extrude?
This is the standard projection method used in the United States where the Top view is placed above the Front view.
What is Third-Angle Projection?
This is the decimal equivalent of the common fraction 1/8".
What is 0.125?
This symbol (Ø) is required when dimensioning this type of geometric feature.
What is a Diameter (or Hole)?
These thick, dark lines represent the edges of the object that are currently visible.
What are Object (or Visible) Lines?
This is the first step of the Engineering Design Process.
What is Define the Problem?
What is Problem Definition?
What is identify the problem?
This specific coordinate entry method uses the @ symbol followed by a distance and an angle (e.g., @2<45).
What are Relative Polar Coordinates?
These three views are considered the "principal views" in a standard multi-view drawing.
What are Front, Top, and Right Side?
If a drawing is set to this scale ratio, the drawing is exactly half the size of the real-world object.
What is 1:2?
These lines extend away from the object to provide a space for the dimension line to sit without touching the part.
What are Extension Lines?
These lines, made of short dashes, represent features that are hidden behind other surfaces.
What are Hidden Lines?
This type of 3D sketch uses a 30-degree angle for all horizontal receding lines.
What is an Isometric Sketch?
This tool allows the cursor to precisely lock onto specific geometric points like endpoints, midpoints, or centers.
What is Object Snap (OSNAP)?
This 45-degree line is used to transfer depth dimensions between the Top and Right Side views.
What is a Miter Line?
This precision tool is used to measure outside diameters, inside diameters, and hole depths.
What is a Dial Caliper?
Dimensions should generally be placed in this location relative to the different views of the drawing.
What is between the views?
This line type takes the highest precedence if an Object line, Hidden line, and Center line all fall on the same coordinate.
What is the Object Line?
This term describes a working model used to test a design concept before final production.
What is a Prototype?
This command creates a rounded corner between two lines at a specific radius.
What is a Fillet?
This specific dimension is shared between the Front view and the Top view.
What is Width?
One inch is exactly equal to this many millimeters.
What is 25.4 mm?
This term refers to a dimension placed in parentheses used for information only, not for manufacturing or inspection.
What is a Reference Dimension?
This line consists of one long dash and two short dashes and is used to show moving parts in alternate positions.
What is a Phantom Line?
This type of 3D sketch uses "vanishing points" to make the drawing look realistic to the human eye.
What is a Perspective Sketch?
This CAD feature is used to organize drawing information into groups that can be colored, hidden, or locked independently.
What are Layers?
This type of view is used to show the "true size and shape" of a surface that is inclined or slanted.
What is an Auxiliary View?
On a standard inch dial caliper, one full revolution of the needle represents this decimal distance.
What is 0.100 inches?
This is the practice of placing dimensions end-to-end, which can lead to unwanted "tolerance buildup."
What is Chain Dimensioning?
These thin lines are used in section views to indicate where a solid material has been "cut."
What are Section Lines (or Hatching)?
This word describes the repetitive nature of the design process where engineers go back to previous steps to improve a design.
What is Iterative?
This organization sets the national standards for technical drawing symbols and dimensioning rules in the United States, specifically the Y14.5 standard.
What is ASME (American Society of Mechanical Engineers)?