6-25. What is the purpose of an isometric scale? 1. To lay off intersecting lines 2. To project the object onto the plane of projection 3. To measure foreshortened lines 4. To measure diagonal lines 6-26. What is the difference between isometric drawings  and  isometric  projections? 1. Lines are drawn foreshortened by two- thirds 2. Lines are drawn without the use of a scale in projections 3. Lines are drawn without the use of a scale in drawings 4. Lines are drawn true length 6-27. In comparison to an isometric projection, how does an isometric drawing appear? 1. Larger 2. Smaller 3. More accurate 4. More realistic 6-28. In an isometric drawing, how should you place the object on the plane of projection? 1. With the longest axis vertical 2. With the longest axis horizontal 3. With the shortest axis oblique 4. With the shortest axis parallel to the longest isometric axis 6-29. Changing the position of the isometric axes affects the viewpoint at which the object is seen. 1.    True 2. False 6-30. How do circles appear on isometric planes? 1.    As obloids 2.    As circles 3.    As ellipses 4.    As parabolas 6-31. When transferring noncircular curves from a multiview drawing to any isometric drawing, what lines should you use? 1. Corresponding  projectors  on  the multiview  drawing 2. Corresponding  nonisometric  lines 3. Corresponding normal lines 4. Corresponding  randomly  spaced parallel lines 6-32. What feature determines when the diameters of an ellipse are conjugate? 1. When the diameter are parallel to the end tangents 2. When the diameters are perpendicular to the end tangents 3. When the minor diameter intersects the major diameter at 60° 4. When the major and minor diameters are complementary 6-33. A circle with a diameter of 65cm will project obliquely as an ellipse with a major diameter of what size? 1.    35cm 2. 55cm 3. 45cm 4. 65cm 6-34. Angles will only project true size when they are drawn in which of the following ways? 1. Parallel to the isometric axes 2. Foreshortened along the isometric axes 3. Parallel to the plane of projection 4.    Perpendicular to the plane of projection 37