Introduction to Engineering Design (IED)
TAKE HOME EXAM – UNIT 7
Mrs. Spool-White Fall 2012
1. A(n)______is a list of the topics covered in someone’s written work.
A. appendix C. biography
B. table of contents D. glossary
2. An organized collection of your best work during a class or major project is
called a(n)______.
A. design diary. C. portfolio.
B. engineering notebook. D. experience log.
3. What type of line is used in an orthographic sketch to project the size of an
object from one view to another?
A. Section Line C. Construction Line
B. Object Line D. Extension Line
4. A line touching an arc or circle at only one point perpendicular to the arc’s
radius is said to be ______.
A. tangent. C. parallel.
B. coincident. D. concentric
5. ______is a type of modeling that helps to define the scope and
limitations of the design problem before significant time is invested in the
development of a prototype.
A. Conceptual modeling C. Mathematical modeling
B. Physical modeling D. Graphical modeling
6. In computer modeling, the process of drawing lines, circles, arcs, and rectangles to create the basic profile that defines the approximate size and shape of features in a part is referred to as ______.
A. dimensioning. C. sketching.
B. profiling. D. extruding.
7. Placed features such as ______and ______are edge treatments applied to a 3D solid model.
A. emboss, engrave C. rib, web
B. fillet, chamfer D. draft face, thicken
8. Work planes that are created parallel to an existing surface and a specified distance away from that surface are referred to as:
A. offset work planes. C. oblique work planes.
B. angled work planes. D. auxiliary work planes.
9. When a group of parts is preassembled and brought into a larger group ofparts as a single unit, they are referred to as ______.
A. Exponential Components. C. Mathematical Modes.
B. Sub Assemblies. D. Subsystems.
10. What is the permissible amount a dimension can vary during the manufacture of a part and have the part still be useable?
A. Tolerance range C. Fluctuation
B. Dual dimension D. Acceptability
11. One purpose of hatch marks or section lines in an orthographic drawing is to show______.
A. material. C. dimensions.
B. texture. D. finish.
12. A cutting plane is needed to create which of the following views in an orthographic drawing?
A. Auxiliary View C. Detail View
B. Isometric View D. Section View
13. What information is missing from the following annotation of the counterbored hole?
A. Hole depth C. Counterbore depth
B. Hole diameter D. Counterbore diameter
14. Match each line type indicated in the illustration below with its corresponding name by placing the letter of the correct name from the answer bank in the numbered space provided. Answers may be used only once.
15. List the 6 Degrees of Freedom (DOF) for the coordinate axis shownbelow.
15.1______
15.2______
15.3______
15.4______
15.5______
15.6______
16. List the assembly constraints needed to completely constrain the parts in the three assemblies below. Describe how the constraints would be applied between the parts. Assume that Part B in each problem is the grounded part.
16.A – Plate B – Block
Constraint(s): ______
______
______
17– 20. Many successful designs incorporate the arrangement of individual elements called Design Principles. Look at the following examples and match the graphic with the appropriate design principles from the Answer Bank. Answers may be used only once.
Answer Bank
- Opposition - Rhythm
- Subordination - Emphasis
- Transition - Proportion
- Radial Balance - Unity
17. ______
18.______
19.______
20.______
21 -26. Use the drawing below to answer the following questions.
21. What is the fillet radius? ______
22. What is the depth of the counter bore? ______
23. What is the angular measurement between the counter bored holes?______
24. What is the overall size of the keyway? ______
25.What is the distance from the center of the part to the center of the counter bored holes? ______
26. What is the overall thickness of the part? ______
27 - 29. Identify the three line types indicated on the orthographic drawing below and
explain why each is used?
27.Line type: ______
Purpose: ______
28.Line type: ______
Purpose: ______
29.Line type: ______
Purpose: ______
30 - 34. Use the drawing of the pivot arm to answer the following questions.
30. What is size of dimension A? ______
31. What is the tolerance for the hole diameter of 1.24 in? ______
32. What is the overall horizontal length of the part? ______
33. What is the width of the keyway? ______
34. From what material is the part made? ______
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