3D SURFACE MODELLING

Other Chapters

• Q1: What is a Plane Surface in CAD?
  Ans: A Plane Surface in CAD is a flat surface created by defining a closed boundary.
  It has no curvature and is completely flat in shape.
• Q2: What is a Ruled Surface in CAD?
  Ans: A Ruled Surface in CAD is a surface created by connecting two curves or lines with straight lines.
  It forms a smooth transition between edges.
• Q3: What is a Revolved Surface in CAD?
  Ans: A Revolved Surface is created by rotating a 2D profile around an axis.
  It is used to create symmetrical 3D shapes.
• Q4: How do you Sweep a surface in CAD?
  Ans: Steps to sweep a surface:
  ➔ Draw a profile shape
  ➔ Draw a path curve
  ➔ Use the SWEEP command
  ➔ Select profile and then path
  ➔ Press Enter to create surface
• Q5: What is Lift Surface in CAD?
  Ans: Lift Surface (Loft Surface) is created by connecting multiple cross-sectional profiles.
  It produces a smooth surface between different shapes.
• Q6: What is an Extrude Surface in CAD?
  Ans: An Extrude Surface is created by extending a 2D shape in a straight direction.
  It gives height or depth to a surface without making it a solid.
• Q7: State the purpose of Surface Trim.
  Ans: Surface Trim is used to remove unwanted parts of a surface.
  It helps in refining and shaping surfaces accurately.
• Q8: State the types of Extend Surface.
  Ans: Types of Extend Surface are:

  • ➔ Natural Extension
  • ➔ Directional Extension
  • ➔ Edge Extension
• Q9: Define Surface Trim.
  Ans: Surface Trim is a command used to cut or remove unwanted portions of a surface using cutting edges.
  It helps in modifying surface boundaries.
• Q10: Define Surface Extend.
  Ans: Surface Extend is used to increase the length of a surface beyond its boundary.
  It helps in connecting or meeting other surfaces.