The document discusses key aspects of isometric sketches. It notes that isometric axes intersect at 120 degree angles. Isometric lines are parallel to these axes while non-isometric lines are not. The offset location measurement method uses parallelism to locate points and can draw normal, inclined, and oblique surfaces. True or false questions clarify that triangle angles do not directly transfer to isometrics and hidden lines/centerlines are used sparingly if at all in isometric drawings.

1. ISOMETRIC SKETCHES

2. • What angle do isometric axes make with each other?

3. • What angle do isometric axes make with each other?
• 120 degrees

4. • What are isometric lines versus non-isometric lines?
What type of edges would you draw with both

5. • What are isometric lines versus non-isometric lines?
What type of edges would you draw with both
• Isometric lines are parallel to the isometric axes and are used to
draw normal edges
• Non-isometric lines are NOT parallel to the isometric axes and are
used to draw inclined and oblique edges

6. • Explain the offset location measurement method. What
types of surfaces would you draw using this method?

7. • Explain the offset location measurement method. What
types of surfaces would you draw using this method?
• Method used in isometric drawing to locate points with respect to
each other using rule of parallelism. Normal, inclined, and oblique
can be drawn using this method.

8. • True or False. A 30, 60, and 90 degree angle triangle is
shown on a multi-view. The same angles will transfer
directly to the isometric view.

9. • True or False. A 30, 60, and 90 degree angle triangle is
shown on a multi-view. The same angles will transfer
directly to the isometric view.
• FALSE. None of the angles will be the same in the isometric view.
Locate the points of the triangle using dimensions rather than using
angles when drawing the isometric view.

10. • True or False. Hidden lines and centerlines are used in
isometric Drawings

11. • True or False. Hidden lines and centerlines are used in
isometric Drawings
• FALSE (or True in a way?) Hidden lines and centerlines should be
used sparingly. If in doubt, leave them out.