Alphabet of Lines Post-Test

What does a VISIBLE LINE show?

• Edges you can see on an object.

• Edges that are not visible.

• Marks the center of circles.

• Help show the measurements.

What does a HIDDEN LINE represent?

• Edges you can see on an object.

• Edges that are not visible.

• Marks the center of circles.

• Used to show moving parts.

What is the purpose of a CENTER LINE?

• Shows the edges you can see.

• Marks the center of circles.

• Used to cut off extra-long parts.

• Used to shade cut surfaces.

What do DIMENSION AND EXTENSION LINES help show?

• The measurements of an object.

• Moving parts in different positions.

• Cut surfaces in a section view.

• Edges that are not visible.

What is a PHANTOM LINE used for?

• To show moving parts.

• To show edges you can see.

• To mark the center of circles.

• To shade cut surfaces.

What do LONG and SHORT-BREAK LINES do?

• Cut off extra-long parts.

• Show edges that are not visible.

• Mark the center of circles.

• Shade cut surfaces.

What do CUTTING-PLANE OR VIEWING-PLANE LINES show?

• Where an object is imagined to be cut.

• The measurements of an object.

• Moving parts in different positions.

• Edges that are not visible.

What are SECTION LINES used for?

• To shade cut surfaces in a section view.

• To show edges you can see.

• To mark the center of circles.

• To show moving parts.