Midterm Exam Study Guide for Engineering & Stats

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Questions and Answers

What is the purpose of doing detailed drawings in Step 3 of the design process?

To create a visual representation of the final product so it can be built in Step 4.

How do you use an Engineering Notebook in the design process?

To document all stages of the design process, record observations, and keep track of progress. The notebook serves as a record of the complete design journey.

Which of these are examples of sketching lines? (Select all that apply.)

Hidden line (correct)
Center line (correct)
Object line (correct)
Construction line (correct)
Section line (correct)

What happens if an Object line and a Hidden line fall on the same spot in a multiview drawing?

The Object line takes precedence over the Hidden line, so the Hidden line is not visible. The Object line indicates a visible feature, while the Hidden line represents a feature that is not visible from the current view. Signup and view all the answers

What does 'significant digits' mean and how do they relate to precision?

Significant digits represent the number of digits in a measurement that are considered to be reliable. The more significant digits a measurement has, the more precise it is. Signup and view all the answers

What does Standard Deviation mean and what does a wide standard deviation say about accuracy and precision?

Standard deviation measures the spread or variability of a set of data points. A wide standard deviation indicates a greater spread, suggesting lower accuracy and precision. Signup and view all the answers

What is the difference between accuracy and precision?

Accuracy refers to how close a measurement is to the true value, while precision indicates the consistency or reproducibility of measurements. Signup and view all the answers

What is the purpose of understanding the difference between US units and SI units?

To avoid confusion and ensure accurate conversions between different systems of measurement. Signup and view all the answers

How many Milli's are in a Centi?

10 Signup and view all the answers

What are 'Spennato's rules for estimation'?

They provide a heuristic approach for estimating measurements, particularly in the context of metric units and tools like dial-calipers. Signup and view all the answers

What does density mean and how do you calculate it?

Density refers to the mass of a substance per unit volume. It is calculated by dividing the mass of an object by its volume. Signup and view all the answers

Flashcards

What is the design process?

The systematic approach to solving problems, involving six key steps: Define the Problem, Generate Ideas, Develop Solutions, Build and Test, Analyze and Evaluate, and Communicate the Solution.

Why are sketches and detailed drawings used in the design process?

Idea (fast concept) sketching helps explore multiple solutions quickly and visually, while detailed drawings provide precise information needed for construction.

Why is an Engineering Notebook used in the design process?

The Engineering Notebook documents the design process, provides evidence of progress, and allows for reflection and improvement.

How should notes be put in an Engineering Notebook?

To document the design process, including sketches, calculations, and test results. Clear and organized notes aid in understanding and revisiting the project.