Extrude, Revolve, Sweep, and Loft AutoCAD MCQs

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

1. What is the primary purpose of the EXTRUDE command in AutoCAD?
To create a 3D solid from a 2D shape by extending it along a straight path.
Answer: To create a 3D solid from a 2D shape by extending it along a straight path.

2. Which command allows you to create a solid by revolving a 2D profile around an axis?
The REVOLVE command.
Answer: The REVOLVE command.

3. What does the SWEEP command do in AutoCAD?
It creates a 3D solid by moving a 2D shape along a specified path.
Answer: It creates a 3D solid by moving a 2D shape along a specified path.

4. How is the LOFT command used in 3D modeling?
To create a surface or solid by connecting multiple cross-sectional shapes.
Answer: To create a surface or solid by connecting multiple cross-sectional shapes.

5. Which of the following can be used as a path for the SWEEP command?
A polyline, line, arc, or any closed shape.
Answer: A polyline, line, arc, or any closed shape.

6. What type of object can be created using the EXTRUDE command?
3D solids and surfaces.
Answer: 3D solids and surfaces.

7. In the REVOLVE command, what determines the axis of revolution?
The centerline or axis specified during the command.
Answer: The centerline or axis specified during the command.

8. What is necessary for the LOFT command to function correctly?
At least two 2D shapes or profiles must be defined.
Answer: At least two 2D shapes or profiles must be defined.

9. Which command would you use to create a cylindrical shape from a circle?
The REVOLVE command.
Answer: The REVOLVE command.

10. How do you specify the height when using the EXTRUDE command?
By entering a distance value when prompted.
Answer: By entering a distance value when prompted.

11. What types of shapes can be swept using the SWEEP command?
Any closed or open 2D shape.
Answer: Any closed or open 2D shape.

12. When using the LOFT command, what is the result of having profiles that vary in size and shape?
A smooth transition surface or solid will be created.
Answer: A smooth transition surface or solid will be created.

13. How can you preview the outcome of the EXTRUDE command before finalizing it?
By using the dynamic input option during the command.
Answer: By using the dynamic input option during the command.

14. What option in the REVOLVE command allows you to control the angle of revolution?
The angle input during the command.
Answer: The angle input during the command.

15. Which command would you use to create a 3D shape that follows the contour of an irregular path?
The SWEEP command.
Answer: The SWEEP command.

16. What is the primary characteristic of the LOFT command in terms of profiles?
It can create surfaces from profiles that are not parallel.
Answer: It can create surfaces from profiles that are not parallel.

17. When using EXTRUDE, what happens if the 2D object is not closed?
The command will not execute successfully.
Answer: The command will not execute successfully.

18. How does the REVOLVE command treat the axis of revolution?
It allows for both horizontal and vertical axes.
Answer: It allows for both horizontal and vertical axes.

19. Can the SWEEP command create solids from both open and closed profiles?
Yes, it can create solids from both.
Answer: Yes, it can create solids from both.

20. In the LOFT command, what happens if the profiles are not connected?
A disconnected loft will be created, potentially resulting in an error.
Answer: A disconnected loft will be created, potentially resulting in an error.

21. How can you modify the height of an extruded object after it has been created?
By using the SOLIDEDIT command to adjust the height.
Answer: By using the SOLIDEDIT command to adjust the height.

22. What type of path is typically required for the SWEEP command?
A continuous path defined by 2D lines or arcs.
Answer: A continuous path defined by 2D lines or arcs.

23. What happens if you try to LOFT between profiles with drastically different shapes?
The resulting surface may have irregular or unexpected transitions.
Answer: The resulting surface may have irregular or unexpected transitions.

24. Which command would you use to create a hollow cylinder from a circle?
The EXTRUDE command followed by a subtraction operation.
Answer: The EXTRUDE command followed by a subtraction operation.

25. In what scenario would you prefer the REVOLVE command over the EXTRUDE command?
When creating objects with rotational symmetry, like a vase.
Answer: When creating objects with rotational symmetry, like a vase.

26. Can the LOFT command be used to create shapes that are not solids?
Yes, it can create surfaces as well as solids.
Answer: Yes, it can create surfaces as well as solids.

27. What is the result of using the SWEEP command with a straight path?
The object will be extruded along the straight line defined as the path.
Answer: The object will be extruded along the straight line defined as the path.

28. How do you ensure that the 2D profile remains in the same plane while using the REVOLVE command?
By drawing the profile on the same plane as the axis of revolution.
Answer: By drawing the profile on the same plane as the axis of revolution.

29. What is required for the EXTRUDE command to work on a shape?
The shape must be a closed 2D object.
Answer: The shape must be a closed 2D object.

30. How can you create a 3D spiral shape in AutoCAD?
By using the SWEEP command along a helical path.
Answer: By using the SWEEP command along a helical path.

31. Can the REVOLVE command create an object from an open profile?
No, it requires a closed profile to create a solid.
Answer: No, it requires a closed profile to create a solid.

32. What happens when you attempt to LOFT between profiles that are not the same type?
An error will occur, or the loft may be invalid.
Answer: An error will occur, or the loft may be invalid.

33. How do you determine the height of an extrusion when using the EXTRUDE command?
By specifying a distance during the command prompt.
Answer: By specifying a distance during the command prompt.

34. In what situation is the SWEEP command particularly useful?
When creating complex shapes like a pipe or handrail.
Answer: When creating complex shapes like a pipe or handrail.

35. What feature does the LOFT command provide for creating complex shapes?
The ability to blend between multiple profiles.
Answer: The ability to blend between multiple profiles.

36. How do you create a solid object that tapers as it extrudes?
By adjusting the profile shape during the EXTRUDE command.
Answer: By adjusting the profile shape during the EXTRUDE command.

37. Can the REVOLVE command create non-uniform shapes?
Yes, but the profile must be designed accordingly.
Answer: Yes, but the profile must be designed accordingly.

38. What should be considered when selecting paths for the SWEEP command?
The path should be continuous and logical for the desired shape.
Answer: The path should be continuous and logical for the desired shape.

39. How can you view the result of a LOFT operation before finalizing it?
By using the preview option during the command.
Answer: By using the preview option during the command.

40. What happens if the profiles used in the LOFT command overlap?
The loft will create an unpredictable surface.
Answer: The loft will create an unpredictable surface.

41. How do you create a complex 3D profile that varies in diameter?
By using multiple profiles in the LOFT command.
Answer: By using multiple profiles in the LOFT command.

42. Can the EXTRUDE command be applied to non-planar surfaces?
No, it only works with planar shapes.
Answer: No, it only works with planar shapes.

43. Which command is best for creating a shape that will be twisted as it is formed?
The SWEEP command with a twisted path.
Answer: The SWEEP command with a twisted path.

44. How can you quickly create a hollow object using REVOLVE?
By first revolving a smaller profile inside a larger one.
Answer: By first revolving a smaller profile inside a larger one.

45. What is the primary difference between the EXTRUDE and SWEEP commands?
EXTRUDE extends a shape linearly, while SWEEP follows a path.
Answer: EXTRUDE extends a shape linearly, while SWEEP follows a path.

46. What types of objects can be created using the LOFT command?
Both solids and surfaces.
Answer: Both solids and surfaces.

47. What must you do if you want to REVOLVE a shape around an off-axis line?
You need to create a temporary construction line to serve as the axis.
Answer: You need to create a temporary construction line to serve as the axis.

48. How can you edit an existing extrusion in AutoCAD?
By using the SOLIDEDIT command to modify the extrusion parameters.
Answer: By using the SOLIDEDIT command to modify the extrusion parameters.

49. What feature of the SWEEP command can enhance the complexity of the shape?
The ability to use a path with multiple curves and angles.
Answer: The ability to use a path with multiple curves and angles.

50. How do you create a shape that gradually transitions in size along its length?
By using the LOFT command with varying profile sizes.
Answer: By using the LOFT command with varying profile sizes.

 

 

Related Posts: