DIMENSIONS AND CONSTRAINTS (ASTM STANDARDS)

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• Q1: Define Constraints.
  Ans: Constraints are rules applied to sketch entities to control their shape, size, and position.
• Q2: Name the types of Constraints.
  Ans: The types of Constraints are as follows:

  • ➔ Geometric Constraints
  • ➔ Dimensional Constraints
• Q3: Define Dimensions.
  Ans: Dimensions are numerical values that define the size or location of sketch entities.
• Q4: What are smart dimension tools?
  Ans: Smart dimension tools allow you to easily add dimensions to sketch entities in SolidWorks.
• Q5: What is the use of smart dimension tools?
  Ans: They are used to define lengths, angles, diameters, and positions of sketch entities.
• Q6: How to apply horizontal dimension by using smart dimension tools?
  Ans: The procedure is as follows:

  • ➔ Select the Smart Dimension tool from the toolbar.
  • ➔ Click on the horizontal line you want to dimension.
  • ➔ Move the cursor to position the dimension.
  • ➔ Click again to place the horizontal dimension value.
• Q7: How to apply vertical dimension by using smart dimension tools?
  Ans: The procedure is as follows:

  • ➔ Select the Smart Dimension tool.
  • ➔ Click on the vertical line to dimension.
  • ➔ Move the cursor to adjust the position of the dimension.
  • ➔ Click to place the vertical dimension.
• Q8: How to apply angular dimension by using smart dimension tools?
  Ans: The procedure is as follows:

  • ➔ Select the Smart Dimension tool.
  • ➔ Click on the two lines forming the angle.
  • ➔ Move the cursor to adjust the angle placement.
  • ➔ Click to place the angular dimension value.
• Q9: How to apply aligned dimension by using smart dimension tools?
  Ans: The procedure is as follows:

  • ➔ Select the Smart Dimension tool.
  • ➔ Click on the line or edge to dimension.
  • ➔ Move the cursor along the line’s direction.
  • ➔ Click to place the aligned dimension.
• Q10: How to apply radius dimension by using smart dimension tools?
  Ans: The procedure is as follows:

  • ➔ Select the Smart Dimension tool.
  • ➔ Click on the circle or arc.
  • ➔ Move the cursor to position the radius dimension.
  • ➔ Click to place the radius value.
• Q11: How to apply diameter dimension by using smart dimension tools?
  Ans: The procedure is as follows:

  • ➔ Select the Smart Dimension tool.
  • ➔ Click on the circle.
  • ➔ Move the cursor to adjust the placement of the dimension.
  • ➔ Click to place the diameter dimension value.
• Q12: How to apply linear diameter dimension by using smart dimension tools?
  Ans: The procedure is as follows:

  • ➔ Select the Smart Dimension tool.
  • ➔ Click on two points, lines, or edges to measure distance.
  • ➔ Move the cursor to position the linear dimension.
  • ➔ Click to place the linear distance value.
• Q13: What are Geometric Constraints?
  Ans: Geometric constraints are the constraints that control the shape and position of sketch entities relative to each other.
• Q14: What are Horizontal Constraints?
  Ans: Horizontal constraints are the constraints that make a line or entity stay horizontal.
• Q15: What are Vertical Constraints?
  Ans: Vertical constraints are the constraints that make a line or entity stay vertical.
• Q16: What are Coincident Constraints?
  Ans: Coincident constraints are the constraints that make two points lie on top of each other.
• Q17: What are Collinear Constraints?
  Ans: Collinear constraints are the constraints that make two or more lines lie on the same line.
• Q18: What are Perpendicular Constraints?
  Ans: Perpendicular constraints are the constraints that make two lines intersect at a 90° angle.
• Q19: What are Parallel Constraints?
  Ans: Parallel constraints are the constraints that make two or more lines always remain parallel.
• Q20: What are Tangent Constraints?
  Ans: Tangent constraints are the constraints that make a line touch a curve or circle at only one point.
• Q21: What are Concentric Constraints?
  Ans: Concentric constraints are the constraints that make two arcs or circles share the same center.
• Q22: What are Equal Constraints?
  Ans: Equal constraints are the constraints that make two or more entities have the same size or length.
• Q23: What are Fix Constraints?
  Ans: Fix constraints are the constraints that lock a sketch entity in place so it cannot move.
• Q24: What are Symmetric Constraints?
  Ans: Symmetric constraints are the constraints that make two entities mirror each other about a center line.
• Q25: What are Coradial Constraints?
  Ans: Coradial constraints are the constraints thatmake arcs or circles share the same center and radius relationship.
• Q26: What are Merge Constraints?
  Ans: Merge constraints are the constraints that combine two overlapping sketch entities into one.
• Q27: What are Equal Curve Length Constraints?
  Ans: Equal curve length constraints are the constraints that make two curves have the same length.