CSWP Surface Modeling 4 — Questions and Answers
Question 1: When using 'Replace Face' in SOLIDWORKS, what does the tool do to the solid body?
- Adds a fillet to the selected face
- Substitutes a selected solid face with a surface body and adjusts neighboring geometry accordingly (Correct answer)
- Converts the face into a separate surface body
- Offsets the selected face inward
Correct answer: Substitutes a selected solid face with a surface body and adjusts neighboring geometry accordingly
Replace Face removes the selected solid face and uses a surface body in its place, trimming and extending adjacent faces to match.
Question 2: In SOLIDWORKS, which surface feature is best suited for creating a smooth transition region between two surfaces that do not share an edge?
- Extend Surface
- Filled Surface (Correct answer)
- Radiate Surface
- Planar Surface
Correct answer: Filled Surface
Filled Surface can patch or blend between non-adjacent surface edges with tangency or curvature constraints.
Question 3: What is the effect of enabling 'Merge Tangent Faces' when creating a Surface Extrude in SOLIDWORKS?
- Combines all separate solid bodies into one
- Merges adjacent faces that are tangent into a single face, reducing face count (Correct answer)
- Automatically applies a tangent constraint to the sketch
- Forces the extrude to follow a tangent path
Correct answer: Merges adjacent faces that are tangent into a single face, reducing face count
Merge Tangent Faces simplifies the resulting geometry by combining G1-continuous adjacent faces into one face.
Question 4: Which method is used to close an open surface body into a sealed solid without using Thicken?
- Apply Shell to the surface
- Use Knit Surface with 'Create Solid' checked (Correct answer)
- Run Offset Surface then Combine
- Use Delete Face with 'Fill' option
Correct answer: Use Knit Surface with 'Create Solid' checked
Knit Surface with the 'Create Solid' option will automatically convert a fully closed knitted surface into a solid body.
Question 5: During a Loft Surface operation, what does setting the 'Start Constraint' to 'Normal to Profile' accomplish?
- Forces the loft to start perpendicular to the profile sketch plane (Correct answer)
- Aligns the loft tangent with the global Z-axis
- Makes the loft curvature match the first reference surface
- Locks the start edge to zero twist
Correct answer: Forces the loft to start perpendicular to the profile sketch plane
Normal to Profile forces the loft surface to leave the start profile perpendicular to that profile's sketch plane.
Question 6: What problem can occur if two surface bodies being knitted have face normals pointing in opposite directions?
- The knit will automatically flip normals to match
- The resulting solid from 'Create Solid' may fail or produce an inside-out body (Correct answer)
- SOLIDWORKS will refuse to knit until normals match
- The surface colors will be inverted in the graphics area
Correct answer: The resulting solid from 'Create Solid' may fail or produce an inside-out body
Opposing normals can cause Knit to create a self-intersecting or inverted solid, because the system assumes consistent outward orientation.
Question 7: Which SOLIDWORKS feature allows you to project a sketch onto a non-planar surface to create a 3D curve for use in surface modeling?
- Intersection Curve
- Project Curve (Correct answer)
- Split Line
- Curve Through Reference Points
Correct answer: Project Curve
Project Curve wraps or projects a flat sketch onto a surface or solid face to generate a 3D curve.
CSWP Surface Modeling 4
When using 'Replace Face' in SOLIDWORKS, what does the tool do to the solid body?