1. You want to draw an octagon shape window on a vertical wall face in your 3D House Plan. Which UCS command option is best suited to place your User Coordinate System on this front wall face to ensure the window is placed flat on this wall?
Correct : C. 3point
2. Which AutoCAD command will determine precisely the volume of a complex (or simple) 3D Solid part?
Correct : B. MASSPROP
3. The purpose of the UCSICON command is to:?
Correct : C. Permit a user to control the placement and appearance of the icon to help you understand your orientation in the XYZ coordinate system.
4. The primary purpose of the UCS (User Coordinate System) is?
Correct : D. Allows a user to draw on a specified 2D Plane in 3D space.
5. To determine if two parts (3D Solids) will fit together without any interference, what 3D AutoCAD command would you use?
Correct : D. INTERFERE
6. What is the volume of a cone with a 12′ radius and a 12′ height?
Correct : D. 3,126,915.13 cu in
7. You apply a property called Thickness to a standard AutoCAD CIRCLE. What type of AutoCAD object do you now have officially?
Correct : A. Surface Model (Polygon Mesh)
8. The axis used to show depth in AutoCAD® is the
Correct : D. Z axis.
9. The right-hand rule is used to determine the direction of the
Correct : C. positive Z axis.
10. All of the axes in the 3D coordinate system meet at
Correct : B. 90° angles.
11. In AutoCAD®, all objects are drawn on the
Correct : C. XY plane.
12. The UCS command
Correct : A. allows you to manipulate the user coordinate system.
13. The World option of the UCS command
Correct : A. returns to the world coordinate system.
14. To allow you to view 3D models from different points of view, AutoCAD® provides
Correct : C. ten predefined 3D views.
15. The VIEW command does all of the following except
Correct : D. display the View toolbar.
16. To view a model from any position in 3D space, use the
Correct : C. 3DORBIT command.
17. The View option of the UCS command
Correct : A. aligns a new UCS parallel to the screen.
18. A wireframe model of a titanium block would most closely resemble a(n)
Correct : C. box-shaped wire basket.
19. Wireframe drawings can be used to
Correct : D. determine spatial relationships between objects.
20. If you were on one side of a wireframe cube looking toward a solid sphere on the other side of the cube, you would see
Correct : A. only the wireframe.
21. Of the following, the object best suited for a wireframe model is
Correct : C. a wire shelving unit.
22. To edit a wireframe model, use
Correct : A. grips.
23. A wireframe model is created using
Correct : B. 2D objects such as points, lines, and circles.
24. One disadvantage of using wireframes as opposed to
surface or solid models is that
Correct : D. they can be difficult to understand because they are “stick figures.”
25. The main difference between creating wireframe models and creating 2D objects is that
Correct : D. wireframe geometry is created using the X, Y, and Z axes.
26. To avoid surprises when you create a wireframe model, it is a good idea to
Correct : C. specify coordinates using the absolute technique.
27. Compared with surface and solid models, wireframe models take
Correct : A. about the same amount of time to create.
28. Surface models are considered to be more advanced
than wireframe models because
Correct : B. they have surfaces (faces).
29. An analytic surface is one that
Correct : A. is described by an equation or set of equations.
30. Surface models are used mostly in
Correct : D. modeling complex curves in boat hulls and car fenders.
31. The number of segments in a tabulated surface is controlled by the
Correct : A. SURFTAB1 system variable.
32. A fillet surface is used to
Correct : C. blend two surfaces together.
33. A surface primitive is a(n)
Correct : A. basic 3D object that can be used to create more advanced models.
34. All of the following are surface primitives except the
Correct : C. spiral.
35. To create an approximation of a Coons patch in AutoCAD®, use the
Correct : D. EDGESURF command.
36. The Spline option of the PEDIT command
Correct : B. uses the vertices of the polyline as control points to create a curve approximating a B-spline.
37. To control the type of surface created using the Smooth surface option of the PEDIT command, use the
Correct : C. SURFTYPE system variable.
38. Solid models are used more frequently than surface models or wireframes because they
Correct : D. allow you to calculate mass properties.
39. The disadvantage of solids created using pure primitive instancing is that
Correct : B. they must be converted to another type of solid before they can be edited.
40. By default, AutoCAD® displays all kinds of models in wireframe format. To find out which type of solid a specific model is, use the
Correct : C. LIST comman
41. Spatial occupancy enumeration is rarely used in CAD applications because it
Correct : A. requires a large amount of memory.
42. To store and display modeling information, AutoCAD® uses
Correct : B. boundary representations and sweeping.
43. All of the following are examples of solid primitives except the
Correct : C. dome.
44. The ISOLINES system variable specifies
Correct : B. the number of contour lines that define a solid model.
45. All of the following objects can be extruded except a(n)