Auxiliary Views Questions

• Reference lines are always at right angles to the projection lines between the views.
• From primary auxiliary views, a secondary auxiliary view can be drawn.
• The center line of a hidden cylinder feature appearing in the front view should line up with the center mark in the corresponding circle which appears in the auxiliary view.
• Revolution is a method of determining the true length and true size of inclined and oblique lines and planes.
• A reference plane appears as a line in an adjacent view.
• If an auxiliary view is symmetrical, and to save space or time, a half auxiliary view may be drawn.
• An auxiliary view is used on technical drawings to project features on an inclined plane away from one of the primary views in such a way that features such as holes appear correctly.
• Auxiliary views allow principal faces of features that are parallel to the standard planes of projection to appear true shape and size.
• Another method used to setup an auxiliary view is to align the UCS with the inclined plane.
• The Offset tool is useful in setting up an auxiliary view.
• Warped surfaces cannot be unrolled or unfolded to lie flat.
• The American Society of Mechanical Engineers provides a set of standards for using auxiliary views.
• An auxiliary view is an orthographic view that is not a standard projection.
• Auxiliary views of 3-dimensional parts can be easily created with AutoCAD.
• Any inclined surface can be shown in true shape when the appropriate auxiliary view is used.
• A double-curved surface is generated by a curved line and has straight-line elements.
• An intersection drawing is a flat representation or pattern that, when folded together, creates a 3D object.
• A ruled surface is one that may be generated by sweeping a generatrix along a path.
• Generally, hidden lines should be omitted in auxiliary views.
• A single-curved surface is a developable ruled surface that can be unrolled to coincide with a cylinder.