3D Drawing and Modeling AutoCAD MCQs

By: Prof. Dr. Fazal Rehman | Last updated: September 24, 2024

1. What is the primary purpose of 3D modeling in AutoCAD? To create three-dimensional representations of objects for visualization and analysis. Answer: To create three-dimensional representations of objects for visualization and analysis. 2. Which command is used to create a 3D solid from a 2D shape? The EXTRUDE command. Answer: The EXTRUDE command. 3. How can you rotate a 3D object around a specified axis? By using the 3DROTATE command. Answer: By using the 3DROTATE command. 4. What does the command “SWEEP” do in 3D modeling? It creates a 3D solid by moving a 2D profile along a path. Answer: It creates a 3D solid by moving a 2D profile along a path. 5. How can you visualize the internal components of a 3D model? By using the SECTION command. Answer: By using the SECTION command. 6. What is the role of the “SOLIDEDIT” command in 3D drawing? It allows for the editing of existing 3D solids. Answer: It allows for the editing of existing 3D solids. 7. Which command is used to create a 3D surface from a mesh of points? The MESH command. Answer: The MESH command. 8. What does the term “model space” refer to in AutoCAD? The area where 3D models are created and edited. Answer: The area where 3D models are created and edited. 9. How do you create a hollow 3D object in AutoCAD? By using the THICKEN command on a 2D object. Answer: By using the THICKEN command on a 2D object. 10. What feature in AutoCAD allows you to view 3D models from different angles? The 3DORBIT command. Answer: The 3DORBIT command. 11. Which command is used to align a 3D object with a specified point? The ALIGN command. Answer: The ALIGN command. 12. How do you create a 3D path for a sweep operation? By drawing a polyline that defines the path. Answer: By drawing a polyline that defines the path. 13. What does the “FILLET” command do in 3D modeling? It creates a rounded edge between two 3D solids. Answer: It creates a rounded edge between two 3D solids. 14. How can you create complex shapes in 3D? By using the LOFT command. Answer: By using the LOFT command. 15. Which command can be used to create a visual representation of the 3D model? The RENDER command. Answer: The RENDER command. 16. What is the purpose of using the “VIEW” command in 3D drawing? To change the current view of the 3D model. Answer: To change the current view of the 3D model. 17. How do you ensure the accuracy of dimensions in a 3D model? By using the DIM3D command. Answer: By using the DIM3D command. 18. What is the benefit of using dynamic input while working in 3D? It provides real-time feedback on coordinate entry. Answer: It provides real-time feedback on coordinate entry. 19. How do you create a 3D surface that follows the contours of a 2D outline? By using the SURFSCULPT command. Answer: By using the SURFSCULPT command. 20. Which command allows you to split a 3D solid into multiple parts? The SLICE command. Answer: The SLICE command. 21. How can you create a mirrored version of a 3D object? By using the MIRROR command. Answer: By using the MIRROR command. 22. What does the “3DPOLY” command do? It creates a 3D polyline with specified vertices. Answer: It creates a 3D polyline with specified vertices. 23. How can you combine multiple 3D solids into one object? By using the UNION command. Answer: By using the UNION command. 24. Which command is used to subtract one solid from another in 3D? The SUBTRACT command. Answer: The SUBTRACT command. 25. How do you create a shape with varying thickness in 3D? By using the THICKEN command. Answer: By using the THICKEN command. 26. What does the “LAYER” command do in a 3D model? It manages the layers for 3D objects. Answer: It manages the layers for 3D objects. 27. How can you set the visual style of a 3D model? By using the VISUALSTYLES command. Answer: By using the VISUALSTYLES command. 28. Which command allows for the conversion of a 2D drawing to a 3D model? The EXTRUDE command. Answer: The EXTRUDE command. 29. What does the “SECTIONPLANE” command do? It creates a cutting plane for viewing cross-sections of a 3D model. Answer: It creates a cutting plane for viewing cross-sections of a 3D model. 30. How can you control the view direction in a 3D model? By using the VIEW command with a defined angle. Answer: By using the VIEW command with a defined angle. 31. What is the role of the “TRIM” command in 3D modeling? It removes portions of 3D objects based on a cutting edge. Answer: It removes portions of 3D objects based on a cutting edge. 32. How do you ensure that your model fits within a specific volume? By using the CONSTRAINTS tools. Answer: By using the CONSTRAINTS tools. 33. Which command is used to create a 3D object with a specific radius? The SPHERE command. Answer: The SPHERE command. 34. What is the purpose of the “ARRAY” command in 3D? To create multiple copies of an object in a specified pattern. Answer: To create multiple copies of an object in a specified pattern. 35. How can you create a 3D representation of a site plan? By using the SITE command. Answer: By using the SITE command. 36. Which command is used to make a 3D view of an object using a camera angle? The CAMERA command. Answer: The CAMERA command. 37. How do you access the 3D tools in AutoCAD? By switching to the 3D Modeling workspace. Answer: By switching to the 3D Modeling workspace. 38. What is the primary function of the “PROPERTIES” palette in 3D modeling? To manage object properties like color, layer, and material. Answer: To manage object properties like color, layer, and material. 39. How can you visually represent different materials on a 3D object? By applying materials through the MATERIALS command. Answer: By applying materials through the MATERIALS command. 40. What does the “REGEN” command do in a 3D model? It refreshes the display of the model to ensure accuracy. Answer: It refreshes the display of the model to ensure accuracy. 41. How can you create a pattern on the surface of a 3D object? By using the HATCH command. Answer: By using the HATCH command. 42. What does the “LOFT” command do in 3D modeling? It creates a surface between two or more 2D shapes. Answer: It creates a surface between two or more 2D shapes. 43. How can you ensure your 3D model is properly scaled? By using the SCALE command. Answer: By using the SCALE command. 44. What is the benefit of using “3D WIREFRAME” view? It allows you to see the underlying geometry without surfaces. Answer: It allows you to see the underlying geometry without surfaces. 45. How can you animate a 3D object in AutoCAD? By using the Animation tools in the Visualize tab. Answer: By using the Animation tools in the Visualize tab. 46. What is the “MATERIALS” editor used for in 3D modeling? To create and assign materials to 3D objects. Answer: To create and assign materials to 3D objects. 47. How do you create a solid using the “PRESSPULL” command? By selecting a closed area and specifying a height. Answer: By selecting a closed area and specifying a height. 48. Which command allows for the display of hidden lines in a 3D view? The HIDE command. Answer: The HIDE command. 49. How can you ensure objects are aligned in a 3D space? By using the ALIGN command. Answer: By using the ALIGN command. 50. What does the “DVIEW” command allow you to do? To create a custom view of the 3D model. Answer: To create a custom view of the 3D model.    
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