Know and Understand

True or False? A convention is a generally accepted way of doing something.

True or False? The alphabet of lines is a list of six lines that are used to draw and dimension an industrial part.

True or False? In the current standards, only two standard line weights $($widths$)$ are recommended.

Which of the following lines is not one of the primary lines needed to describe the views of a part?

A$.$ Visible line

B$.$ Viewing$-$plane line

C$.$ Center line

D$.$ Hidden line

True or False? There are three options for the appearance of a section line.