TOLERANCES (ASTM STANDARDS)

Other Chapters

• Q1: What is CAD?
  Ans: CAD (Computer-Aided Design) is software used to create, modify, analyze, and optimize designs digitally.
• Q2: Define Sketch Plane.
  Ans: A sketch plane is a flat surface in 3D space where 2D sketches are created.
• Q3: Write the concept of Parametrics (Parametric Modelling).
  Ans: Parametric modeling is designing where dimensions and relationships control the shape and size of geometry.
• Q4: Define Parameters.
  Ans: Parameters are numerical values or constraints that control dimensions, positions, or relationships in a model.
• Q5: Name six 3D Sketching Entities.
  Ans: Six 3D sketching entities are:

  • ➔ Point
  • ➔ Line
  • ➔ Circle
  • ➔ Arc
  • ➔ Spline
  • ➔ Ellipse
• Q6: Define Points.
  Ans: Points are basic geometric elements used to define locations or reference positions in a sketch.
• Q7: Define Splines.
  Ans: Splines are smooth, flexible curves defined by a set of points, used for complex shapes.
• Q8: Define Trim entities.
  Ans: Trim entities are used to remove unwanted portions of sketch lines or curves.
• Q9: Define Construction Geometry.
  Ans: Construction geometry is reference geometry used to help build sketches but does not appear in the final model.
• Q10: Define Extend Entities.
  Ans: Extend entities are used to lengthen a line or curve so that it touches another entity.
• Q11: Define ConvertEntities.
  Ans: Convert Entities creates a sketch entity by projecting the edge or face of a model onto the current sketch plane.
• Q12: Define Centerline.
  Ans: A centerline is a reference line used to indicate symmetry or the center of a feature.
• Q13: Define Sketch Fillet.
  Ans: Sketch Fillet rounds the corner between two sketch lines with a smooth arc.
• Q14: Define Sketch Chamfer.
  Ans: Sketch Chamfer creates a straight angled edge between two sketch lines instead of a rounded corner.
• Q15: Define Intersection Curve.
  Ans: Intersection Curve is a curve created at the intersection of two surfaces or a surface and a plane.
• Q16: Define Face Curve.
  Ans: Face Curve is a curve created directly on the face of a 3D surface or solid.