CAD Geometric Constraints

Question 1

What does a 'coincident' constraint do in a CAD sketch?

Accepted Answer

Forces two points to share the same location

Answer

A coincident constraint forces two points (or a point and a curve) to occupy the same location in the sketch plane.

Question 2

Which geometric constraint ensures two lines remain parallel at all times?

Accepted Answer

Parallel

Answer

A parallel constraint forces two lines to maintain the same direction vector, keeping them parallel regardless of other changes.

Question 3

What is the primary purpose of a 'Fix' constraint in CAD sketching?

Accepted Answer

Locks a sketch element's position and orientation to the coordinate system

Answer

A Fix constraint anchors a sketch element to specific coordinates, preventing it from moving when other constraints or dimensions change.

Question 4

Which geometric constraint would you apply to make two circles share the same center point?

Accepted Answer

Concentric

Answer

A concentric constraint forces two circles or arcs to share the same center point, making them concentric.

Question 5

What does a 'Tangent' constraint enforce between a line and an arc?

Accepted Answer

The line and arc meet at exactly one point without crossing

Answer

A tangent constraint ensures a line and arc (or two arcs) touch at exactly one point, with the line being tangent to the curve at that contact point.

CAD - Computer-Aided Design Practice Test