What is the primary purpose of creating a 3D computer-aided design (CAD) model?

• To create a marketing presentation

• To visualize and simulate the product before production

• To replace physical prototypes with sketches

• To develop software applications

Which of the following is a common CAD software used for 3D modelling?

• SolidWorks

• Adobe Illustrator

• Microsoft PowerPoint

• Google Docs

In 3D modeling, which feature allows you to test the interaction of different parts of an assembly?

• Exploded view

• Mass properties analysis

• Motion simulation

• 2D sketching

What key information is typically included in a 3D CAD model that makes it useful for other engineering processes?

• Detailed colour schemes

• Dimensional data, material properties, and tolerances

• Marketing slogans

• Music and sound effects

What process involves creating a physical version of a 3D CAD model for testing?

• Digital painting

• Prototyping using 3D printing or CNC machining

• Web development

• Circuit board assembly

Which feature in CAD software helps in analyzing the strength and durability of a design under various conditions?

• Surface modeling

• Finite element analysis (FEA)

• Rendering

• 2D drafting

What is the benefit of using parametric modeling in CAD software?

• It allows for easy modification of the design by changing parameters

• It enhances the color accuracy of the model

• It improves the sound quality of animations

• It simplifies the process of creating marketing materials

A 3D CAD model allows for the analysis of stress, load, and material properties before physical manufacturing.

• TRUE

• FALSE

Once a 3D model is created, it cannot be modified or adjusted for future engineering processes.

• TRUE

• FALSE

3D CAD models can be directly used in Computer-Aided Manufacturing (CAM) processes like CNC machining.

• TRUE

• FALSE