Introduction to 3D Design Software and Parametric Design

Which statement best describes the purpose of 3-dimensional design software for engineers?

• It automatically builds physical prototypes without human input.

• It allows engineers to visualize prototypes before construction.

• It replaces the need for any manufacturing equipment.

• It is used only for 2D drafting and sketching.

Which of the following is 3D design software?

• AutoDesk Inventor

• Rhino

• Revit

• Onshape

What is parametric design? Choose the most accurate definition.

• A method for coloring 3D models using textures only.

• A system that constructs relations among the geometry of different elements so that when one changes, the others update.

• A process of exporting files for 3D printing.

• A tool that measures the weight of a prototype.

According to the material, which sequence is enabled by parametric design entirely on the computer?

• Designed, Prototyped, and Manufactured

• Sketched, Painted, and Marketed

• Surveyed, Demolished, and Rebuilt

• Programmed, Compiled, and Deployed

Which statement best describes conceptual engineering?

• A late-stage verification step focused on meeting specifications

• An early design process to develop ideas without getting stuck in specifications

• A manufacturing method to mass-produce parts

• A budgeting phase that sets project costs

In conceptual engineering, what is the main benefit of a drafting-like phase?

• It locks parameters early to avoid changes

• It allows exploration of design possibilities and changing any parameter

• It eliminates the need for documentation

• It replaces testing and prototyping

Reverse engineering is primarily used to do which of the following when a blueprint is not available?

• Generate 3-D images of manufactured parts to remanufacture them

• Estimate project budgets

• Develop marketing materials

• Test user interfaces

Which example best illustrates reverse engineering?

• Sketching several concept ideas before selecting one

• Disassembling a clock to understand each part's function

• Writing requirements to constrain design parameters

• Simulating stress on a finalized CAD model

Which statement best describes wireframe modeling?

• It defines only the exterior surfaces using splines.

• It is an edge or skeletal representation using lines and curves.

• It constructs a 3D model from voxels with texture maps.

• It always maintains a calculable volume through features.

What elements do wireframe models consist of, according to the description?

• Points, lines, and curves

• Vertices, faces, and textures

• Meshes, polygons, and shaders

• Solids, primitives, and features