1A2 Engineering Design

Question 1

Define:

engineering design

Answer 1

A set of structured steps engineers use when developing a product.

This iterative process combines creativity and technical knowledge to develop effective solutions.

Question 2

What is the primary goal of the engineering design process?

Answer 2

To develop practical, efficient, and innovative solutions to real-world problems.

Each step contributes to refining and validating the final solution.

Question 3

List the steps in the engineering design process.

Answer 3

1. Define the problem
2. Research
3. Brainstorming
4. Determine the best solution
5. Prototyping
6. Testing
7. Iteration
8. Implementation

Each step contributes to refining and validating the final solution.

Question 4

Why is defining the problem the first step in engineering design?

Answer 4

It is important to understand the challenge and identify criteria for success and constraints.

Proper problem definition ensures that efforts are focused and solutions are practical.

Question 5

Define:

success criteria

Answer 5

Measurable objectives or standards that a solution must meet to be considered effective.

Examples:

• Durability
• Efficiency
• Cost-effectiveness

Question 6

Define:

constraints

Answer 6

Limitations that state what can and cannot be included in the design.

Examples:

• Budget
• Time
• Resources

Question 7

How do engineers identify a problem?

Answer 7

• By defining the challenge
• Understanding constraints
• Gathering background information

Clear problem definition involves asking questions like:

• What needs improvement?
• What challenges do users face?

Question 8

Why is identifying constraints important in engineering design?

Answer 8

To ensure the solution is feasible and within practical boundaries.

Constraints limit the design options and must be considered.

Question 9

True or False:

All constraints in engineering design are technical.

Answer 9

False

Constraints can be technical, economic, environmental, or social.

For example, building a bridge must consider material strength (technical), budget (economic), local laws (social), and ecological impact (environmental).

Question 10

Fill in the blank:

____ is the step where engineers gather existing knowledge.

Answer 10

Research

Research ensures solutions are informed by current science and technology.

Question 11

What is the importance of brainstorming?

Answer 11

It fosters creativity and innovation in order to solve a problem.

This step includes generating a wide range of ideas to solve a problem. This step encourages diverse perspectives to explore all possibilities.

Question 12

What is convergent and divergent thinking in engineering design?

Answer 12

• Divergent thinking: Explores multiple solutions.
• Convergent thinking: Narrows options to the best solution.

Divergent thinking fosters creativity by generating ideas, whereas convergent thinking applies logic to select the most effective solution in problem-solving.

Question 13

What does it mean to determine the best solution?

Answer 13

Choosing the most feasible and effective idea from the brainstormed options.

Feasibility is assessed based on:

• Constraints
• Potential impact
• Available resources

Question 14

List two common mistakes made in the engineering design process.

Answer 14

1. Skipping research before brainstorming
2. Ignoring user needs in design

Lack of research may lead to reinventing existing solutions, and ignoring user needs can result in ineffective products.

Question 15

What are specifications in engineering design?

Answer 15

Technical information that define the product.

Specifications ensure that the final product aligns with client needs and complies with industry standards.

Question 16

List four parameters included in product specifications.

Answer 16

1. Size
2. Dimensions
3. Energy efficiency
4. Durability

The parameters depend on the type of product.

Other parameters include:

• Materials standards
• Energy efficiency
• Safety standards
• Environmental considerations

Question 17

List three types of models that can be built during the design process.

Answer 17

1. Prototypes
2. Mathematical models
3. Computer simulations

Models help:

• Visualize concepts
• Assess feasibility
• Refine solutions

Question 18

Define:

prototyping

Answer 18

Creating a preliminary model or sample of the chosen solution.

Prototypes help visualize and test the design before full-scale production.

Question 19

What is the purpose of creating a prototype?

Answer 19

To reduce risks by identifying issues early in the process.

A prototype tests and refines the design.

Question 20

What is testing step of engineering design?

Answer 20

Assessing whether the prototype meets design criteria and functions as intended.

This step ensures the solution is reliable and effective.

Question 21

Why should engineers test multiple prototypes?

Answer 21

To get comparative data to refine the best solution.

Multiple prototypes help identify strengths and weaknesses of different designs.

Question 22

Fill in the blank:

________ is the process of refining a design based on testing feedback.

Answer 22

Iteration

Iteration often involves multiple cycles to optimize the final product.

Question 23

Define:

iterative design process

Answer 23

A cyclical approach where designs are repeatedly tested and improved.

It allows for continuous improvement of the solution.

Question 24

What process identifies design failures and improvements in engineering?

Answer 24

Failure analysis

Failure analysis helps prevent future design flaws and ensures safer, more reliable solutions.

Question 25

List *two* examples of **trade-offs** in engineering design.

Answer 25

1. Sacrificing cost for durability 1. Prioritizing speed over complexity ## Footnote Trade-offs balance competing constraints to achieve optimal solutions.

Question 26

# Define: optimization

Answer 26

It is the **systematic modification** of a design to improve its: * Performance * Efficiency * Reliability ## Footnote This often includes making modifications based on testing and feedback.

Question 27

How is **systematic modification** used to refine a design?

Answer 27

By **making deliberate changes** to a design based on test results and analysis to enhance functionality. ## Footnote This ensures continuous improvement in meeting the problem's requirements.

Question 28

# Define: reverse engineering

Answer 28

The process of **analyzing** an **existing product** to understand its design. ## Footnote This technique can inspire *new designs* or *improvements.*

Question 29

What is a **design matrix**?

Answer 29

A tool used to **compare** and **rank** potential solutions based on set criteria. ## Footnote It helps objectively determine the best option among alternatives.

Question 30

What is the **role** of **systems thinking** in engineering design?

Answer 30

It considers the interconnections and interactions ensuring **holistic solutions** that address all relevant factors. ## Footnote

Question 31

How does **feedback** improve the design process?

Answer 31

It provides critical insights to **refine** and **enhance** the solution. ## Footnote Feedback from users or stakeholders ensures the design meets real-world needs.

Question 32

List *three* **purposes** of using **data** in the engineering design.

Answer 32

1. To inform decisions 1. Validate prototypes 1. Evaluate performance ## Footnote Data-driven designs are grounded in evidence and accuracy.

Question 33

What is **human-centered** design?

Answer 33

A design approach focused on meeting the **needs** and **preferences of users**. ## Footnote This approach emphasizes empathy and user feedback throughout the process.

Question 34

What is the role of **communication** in engineering design?

Answer 34

Clear communication ensures **collaborative problem-solving**. ## Footnote It involves sharing ideas, results, and solutions with stakeholders.

Question 35

How is **collaboration** integral to the design process?

Answer 35

It combines diverse expertise to enhance **problem-solving** and **innovation**. ## Footnote Collaborative efforts often result in more robust and creative solutions.

Question 36

# True of False: **Ethics** influences the engineering design process.

Answer 36

True ## Footnote It ensures solutions prioritize safety, fairness, and social responsibility. Ethical designs prevent harm and promote trust in engineering practices.

Question 37

Name an example of a **sustainable** engineering design.

Answer 37

Using **renewable** materials in construction. ## Footnote Sustainable designs reduce environmental impact and promote long-term resource efficiency.

Question 38

# Define: implementation

Answer 38

To **produce** and **deploy** the final product or system. ## Footnote Implementation is the culmination of the design process.

Question 39

Why do engineers perform **post-implementation reviews**?

Answer 39

To **analyze** if the solution met expectations and **identify** improvements. ## Footnote Post-implementation reviews help engineers *assess performance, address unforeseen issues, and refine future projects.*