Computer-Aided Design (CAD) Quizzes for Engineering Design

Question 1

Which CAD software command is used to create a 3D shape by extruding a 2D profile?

Accepted Answer

Extrude

Answer

Loft

Answer

Sweep

Answer

Revolve

Question 2

What is the key difference between a parametric and a non-parametric CAD model?

Accepted Answer

Parametric models can be modified by changing the parameters used to create them, while non-parametric models cannot.

Answer

Non-parametric models can be modified by editing the individual elements that make up the model, while parametric models cannot.

Answer

Parametric models are more detailed and require more powerful software to create than non-parametric models.

Answer

Non-parametric models are more precise and accurate than parametric models.

Question 3

What is the term used to describe the process of converting a 3D model into a set of instructions for a CNC machine?

Accepted Answer

CAM

Answer

CAE

Answer

FEA

Answer

CFD

Question 4

When creating a 2D technical drawing in CAD, which view orientation is used to show the top surface of an object?

Accepted Answer

Top view

Answer

Front view

Answer

Side view

Answer

Isometric view

Question 5

Which CAD command is used to create a beveled edge at the intersection of two surfaces?

Accepted Answer

Chamfer

Answer

Fillet

Answer

Extrude

Answer

Loft

Question 6

What is the primary purpose of using constraints in 3D modeling?

Accepted Answer

To establish relationships between objects and restrict movement

Answer

To improve the aesthetic appeal of the model

Answer

To automate repetitive tasks

Answer

To reduce file size

Question 7

Which file extension is commonly used to export CAD models for 3D printing?

Accepted Answer

STL

Answer

OBJ

Answer

DXF

Answer

DWG

Question 8

What is the term for creating a 3D model by adding material to a 2D sketch?

Accepted Answer

Extrusion

Answer

Revolve

Answer

Loft

Answer

Sweep

Question 9

How does using CAD software with programs like FEA and CFD change engineering design?

Accepted Answer

Makes design faster by using one program for many tasks.

Answer

Makes design slower because the programs are hard to use.

Answer

Removes the need to build and test design ideas.

Question 10

Which of the following is NOT an advantage of utilizing CAD software in engineering design?

Accepted Answer

Increased resource consumption

Answer

Improved precision

Answer

Enhanced collaboration

Answer

Accelerated design process

Question 11

In CAD software, what tool is primarily used to create and manipulate curves?

Accepted Answer

Spline

Answer

Line

Answer

Circle

Answer

Fillet

Question 12

Layers in CAD drawings serve the primary purpose of:

Accepted Answer

Controlling visibility and enabling selective editing

Answer

Organizing various design elements

Answer

Establishing dimensions and adding annotations

Answer

Facilitating exports in multiple formats

Question 13

In CAD modeling, what is the primary function of a datum?

Accepted Answer

To establish a reference point or plane for measurements and dimensions

Answer

To define assembly relationships between components

Answer

To set the origin of the coordinate system

Answer

To simulate physical interactions and behaviors

Question 14

Design a wheelchair-accessible ramp using CAD software. Ensure your design meets all relevant standards and regulations.

Accepted Answer

Complete 3D model with dimensions and material specifications

Answer

2D sketch only

Answer

3D model without dimensions

Answer

3D model with dimensions but no material specifications

Question 15

Which CAD technique involves creating digital models of physical objects using scanned data?

Accepted Answer

Reverse engineering

Answer

Generative design

Answer

Simulation

Question 16

Which of the following is **NOT** a significant advantage of utilizing CAD software in engineering design?

Accepted Answer

Increased time required for design iterations

Answer

Improved accuracy and precision

Answer

Enhanced collaboration and communication

Answer

Streamlined documentation and ease of revisions

Question 17

What is the primary purpose of employing a 2D CAD tool?

Accepted Answer

Creating flat, 2-dimensional drawings

Answer

Generating photorealistic renderings

Answer

Simulating 3D models

Question 18

Which file format is commonly used for exporting 3D CAD models?

Accepted Answer

STL

Answer

XLS

Answer

DOC

Answer

JPEG

Question 19

What is the purpose of a dimension style in CAD software?

Accepted Answer

To control the appearance and accuracy of dimensions

Answer

To generate automatic annotations

Answer

To create layers for organizing objects

Question 20

Which of the following is a key factor to consider when selecting a CAD software package?

Accepted Answer

Compatibility with other engineering tools and applications

Answer

User-friendliness only

Answer

Price alone

Question 21

Explain the distinction between a 'sketch' and a 'model' in a CAD environment.

Accepted Answer

A model is a parametric, fully constrained 3D representation, while a sketch is a 2D drawing that can be used to create a model.

Answer

A model is a 2D drawing, while a sketch is a 3D representation.

Question 22

What are the primary benefits of utilizing parametric modeling in CAD?

Accepted Answer

Increased design flexibility and ease of making changes

Answer

Improved rendering speed

Answer

Reduced file size

Question 23

What is the purpose of rendering in CAD?

Accepted Answer

To generate realistic images and animations

Answer

To simulate physical properties

Answer

To create technical drawings

Answer

To import external data