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Unit 1: Design Process I. Define Unit 1 Vocabulary Key Term Definition

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Page 1: welkersclass.weebly.com · Web viewIdentify line types (including construction lines, object lines, hidden lines, and center lines) used on a technical drawing per ANSI Line Conventions

Unit 1: Design ProcessI. Define Unit 1 Vocabulary

Key Term Definition

II. Identify the steps in an engineering design process and describe the activities involved in each step of the process.

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III. Explain the concept of proportion and how it relates to freehand sketching.

A. Why would the ability to create realistic sketches make a person a more competent designer?

B. Give an example of a visual or graphic representation of information that has more impact than an explanation of the information in text

IV. Identify and describe a variety of brainstorming techniques and rules for brainstorming.

A. Why is it important to document the brainstorming process?

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B. What is the purpose of sketching your ideas?

V. Differentiate between invention and innovation.

A. Why is it important for engineers to be creative and think outside the box?

B. How has the pace of development changed through the history of the design?

VI. Identify and differentiate between the work of an engineer and the work of a scientist.

A. What is it about engineering that is common to all disciplines of engineering? That is, what makes an engineer an engineer regardless of the work one does?

B. Why do you think engineering has been called the stealth profession? (Hint: there are many Internet resources that address this question.)

VII. Identify and differentiate between mechanical, electrical, civil, and chemical engineering fields.

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Unit 2: Technical Sketching and DrawingI. Define Unit 2 Vocabulary

Key Term Definition

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II. Identify line types (including construction lines, object lines, hidden lines, and center lines) used on a technical drawing per ANSI Line Conventions and Lettering Y14.2M-2008 and explain the purpose of each line.

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III. Identify and define technical drawing representations including isometric, orthographic projection, oblique, and perspective views.

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IV. Identify the proper use of each technical drawing representation including isometric, orthographic projection, oblique, and perspective views.

A. What are the advantages and disadvantages to using an isometric pictorial compared to using an oblique pictorial in technical drawings?

B. What is the difference between a two-dimensional sketch and an isometric sketch?

C. Why do designers use tonal shading?

D. What is a vanishing point?E. Aside from the number of vanishing points, what is the difference between a one-point, two-point,

and three-point perspective sketch?

F. How does a perspective drawing differ from an isometric drawing of the same object? When would you use a perspective view in lieu of an isometric drawing?

V. How is technical drawing similar to and different from artistic drawing?

VI. Study the following patterns. Circle the flat patterns that are cube nets.

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VII. Study the images that follow. The various surfaces of the object are identified by letters on the isometric drawing and by numbers on the multiview drawing. In the table, write the number that corresponds with the lettered surface in each of the top, front, and right-side views.

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Unit 3: Measurement and StatisticsI. Define Unit 3 Vocabulary

Key Terms Definition

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II. Using the pictures below:A. What is the difference in the length of rectangles A and C in metric? In US Customary?

B. What is the difference in the length of rectangles B and E in metric? In US Customary?

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III. A village on a Caribbean island was devastated by a hurricane. The supply of fresh water was contaminated when the storm surge washed over the island, inundating the wells. Several tanks of fresh water were delivered to the village. Each tank contains 10.5 hectoliters of water.

A. How many liters of water does each tank contain?

B. On any given day, one person needs an average of 2.5 liters of water to survive. How many people will a tank supply for the day? Hint: Create a conversion factor to convert from liters to people.

C. If the village (which includes people and livestock) requires a total of 430 liters of water each day, approximately how long (in days) will one tank provide an adequate supply for the village? Give your answer to the nearest tenth of a day. Hint: Create a conversion factor to convert from liters to days.

D. Convert the result to days and hours. Give your answer to the nearest hour.

IV. When you look at a drawing, how do you know if you are looking at U S Customary or SI measurements? Why is it important for an engineer to know this piece of information?

V. Explain the meaning of significant digits (or significant figures) in measurement.

VI. Identify general rules for dimensioning on technical drawings used in standard engineering practice.

1.

2.

3.

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4.

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VII. Distinguish between sample statistics and population statistics and know appropriate applications of each.

VIII. Distinguish between precision and accuracy of measurement.

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IX. Convert each of the following quantities to the indicated units. Use the appropriate number of significant figures to express your answer unless otherwise indicated.

A. 0.005098 Megaliters to liters. Record your answer in whole liters.

B. 57.2 inches to feet.

C. 4 ft – 6 ½ in. to inches. Record your answer in fractional inches.

D. 6 ft – 9 inches to decimal feet. Record your answer to the nearest hundredth of a foot.

E. 935.6 inches to yards. Round your answer to the nearest hundredth of a yard.

F. 23.5 million nanometers to millimeters.

G. 98.6 inches to meters.