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Computer Aided Design (CAD) Basics

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Questions and Answers

What is a Handle in terms of geometry?

A set of faces that bound a single connected closed volume
A passageway that passes through the object completely (correct)
A face that bounds a single connected closed volume
A single connected closed volume

What is the purpose of Euler Operators in B-Rep?

To create and manipulate the topological entities (correct)
To visualize the solid in 3D
To calculate the number of vertices and faces
To define the faces and edges of a solid

What is the relationship among faces, edges, vertices, and Floops in solids according to Euler's Law?

E - V - L = 2(B - G)
E - V + L = 2(B - G)
E + V - L = 2(B + G)
E + V - L = 2(B - G) (correct)

What type of solids can be created using Sweep Representation?

Solids with a uniform thickness in a particular direction and axisymmetric solids (A) Signup and view all the answers

What are the two elements required for Sweeping in geometry?

A trajectory and a surface to be moved (D) Signup and view all the answers

What is the difference between Extrusion and Revolution in Sweep Representation?

Extrusion is a type of Transitional Sweeping, while Revolution is a type of Rotational Sweeping (A) Signup and view all the answers

What is the purpose of a Body in geometry?

To create a set of faces that bound a single connected closed volume (D) Signup and view all the answers

What is the relationship between the number of faces and edges in a solid according to Euler's Law?

F - E = 2(B - G) (A) Signup and view all the answers

What is the purpose of Boundary Representation (B-Rep) in geometry?

To ensure topological validation of the boundary model (D) Signup and view all the answers

What is a Floop in solid geometry?

A face inner loop (B) Signup and view all the answers