Exam 21: Reading Technical Drawings

____ lines represent an imaginary cut through the object.They are used to expose the details of internal parts that would not be shown clearly with hidden lines.

The ____ detail(s) the type and grade of material to be used, including base metal, consumables such as filler metal, and hardware such as nuts and bolts.

Raster drawings are commonly known as ____________________ drawings because the computer maps the location of every little bit (pixel) of the drawing.

Although there are different patterns of section lines for different materials, most often the evenly spaced ____________________ lines for cast iron are used for all cut surfaces.

When might it be necessary to write on a shop drawing?​

The length dimensions of an object can be found on the ____ views.

The ____ view is usually an external view of a specific area of a part.These views show small details of a part's area and negate the need to draw an enlargement of the entire part.

​Why do drafting programs use vector lines?

____ point to a part to identify it, show the location, and/or are the basis of a welding symbol.

____ lines are the lines extending from an object that locate the points being dimensioned.

____ lines show the edge of an object, the intersection of surfaces that form corners or edges, and the extent of a curved surface, such as the sides of a cylinder.

Discuss the similarities and differences between sketches and mechanical drawings.

____ lines show the same features as object lines except that the corners, edges, and curved surfaces cannot be seen because they are hidden behind the surface of the object.

____ lines are drawn so that their ends touch the object being measured, or they may touch the extension line extending from the object being measured.

Computers see vector lines as lines, and they see raster lines as if they were part of a ____________________.

​Of the two methods for locating the views, the ____ angle projection method is the most commonly used for welding drawings.

​How do computers see a raster line?

The ____, which will appear in one corner of the drawing, may contain the name of the part, company name, scale of the drawing, date of the drawing, who made the drawing, drawing number, number of drawings in this set, and tolerances.

A ____ view can be used to show a surface of the part that would not normally be drawn square to any of the six normal view planes.

The ____ let(s) you know where the parts are to be sent once you have completed your part of the assembly process.