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Unit 9: Midterm Exam Classroom Topic Format Learning Aids Preparation WRITTEN T

Unit 9: Midterm Exam Classroom Topic Format Learning Aids Preparation WRITTEN TEST Discussion Question Bank Prepare and print final exam. CASE STUDY PRESENTATION Student presentation One or more pairs of students present their case study findings. Computer Lab Topic Format Learning Aids Preparation FINAL PROJECT Proposal 2 Hands-on Students will re-examine their final project proposal in light of what they’ve learned so far in this course. * If you have an amazing lesson plan you’d like to share with the Stratasys Education Community, tell us. If we add it to our curriculum, you’ll be eligible to receive free FDM or PolyJet materials for your 3D printers. edu.curriculum@stratasys.com Something That Moves Something - Introduction to 3D Printing Created by Ohad Meyuhas, architect Exam Question Bank Because this course was built in a modular fashion allowing you to focus on topics that cater to your students’ interests and fit within your yearly curriculum plan, this exam follows the same spirit. You may modify this test and choose questions relevant to units you have taught. Unit 1: Introduction Essay Questions Compare the Third Industrial Revolution to the First Industrial Revolution. What are the differences and similarities? Evaluator notes: • The First Industrial Revolution changed the fabrication process dramatically: o Faster fabrication o Cheaper fabrication o Collaborative manufacturing • The Third Industrial Revolution: o Uses machines to manufacture custom products o Anyone can design and fabricate products o Anyone can operate 3D printers o 3D printers can be used anywhere from factories to private homes – no size limitation o This has also lead to smaller scale factories (Normal Ears is one example) o We’ve returned to an era of personal fabrication Explain how technology shifts throughout history have made 3D printing possible. Stalagmites and stalactites are natural products, formed by an additive process. Explain the resemblance to the 3D printing manufacturing method. Explain how the designer’s role has evolved over time. How it is likely to change as we move toward mass customization? Multiple-Choice Questions Which of the following best describes Design Thinking? A. A process that progresses linearly from empathy to testing B. A process that progresses non-linearly from ideation to testing and production C. A process that cycles sequentially through repeatable steps D. A process for analyzing the success of a product Which of the following is not a design consideration for 3D printing? A. Material B. Tolerance C. Size of build tray D. CAD software The evolution of 3D printers is similar to the evolution of personal computers is what way(s)? Select all correct answers. A. Both began as professional tools that eventually expanded to personal use B. Both grew more accessible over time C. Both became cheaper due to mass production D. Both were revolutionary products In what way(s) did 3D printing contribute to the reemergence of personal fabrication? Select all correct answers. A. It answered the innate human need to create B. It encouraged design sharing and collaborative learning C. It replaced all other fabrication methods D. It made design available and easy for more people edu.curriculum@stratasys.com Something That Moves Something - Introduction to 3D Printing Created by Ohad Meyuhas, architect What Neolithic Age characteristic reappeared as a trend during the Third Industrial Revolution? A. Mass production B. Additive manufacturing C. Personal fabrication D. None of the above Which of the following are reduced with personal fabrication? A. Production expenses B. Carbon footprint C. Shipping costs D. Manual labor Carving, drilling, milling and chiseling are all examples of what? A. Additive manufacturing B. Subtractive manufacturing C. Cutting D. Forming Which of the following crafts are more likely to use cutting as a fabrication method? Select all correct answers. A. Woodcraft B. Fur and leather craft C. 3D modeling D. All crafts use cutting as a fabrication methods Glass blowing is an example of what manufacturing method? A. Additive manufacturing B. Subtractive manufacturing C. Cutting D. Forming Which of the following is NOT an example of additive manufacturing? A. Electron binder jetting B. Electron beam melting C. Fused-deposition-modeling D. Lost-wax casting edu.curriculum@stratasys.com Something That Moves Something - Introduction to 3D Printing Created by Ohad Meyuhas, architect Unit 2: Introduction to 3D Printing Essay Questions Explain what design freedom means and how 3D printing contributes to it. Which technology would provide the best basis for food printing? Why? Choose two technologies and describe how they work. • Laser melting (LM, DLMS) • Fused deposition modeling (FDM) • Electron beam melting (EBM) • Electron binder jetting (BJ) • Stereolithography (SL, SLA) • Material jetting (MJ, DOD) • Photopolymer jetting (PolyJet) • Selective laser sintering (SLS) • Digital materials Multiple-Choice Questions What purpose does support material serve in 3D printing? A. It increases the durability of the final product B. It allows easier assembly and post-processing C. It reduces waste D. It supports layers as they are printed, functioning as scaffolding Which of the following technologies is capable of printing metal? A. Laser melting (LM) B. Fused deposition modeling (FDM) C. Electron beam melting (EBM) D. Electron binder jetting (BJ) E. Stereolithography (SL, SLA) F. Material jetting (MJ, DOD) G. Photopolymer jetting (PolyJet) Which of the following technologies build parts through melting? A. Laser melting (LM) B. Fused deposition modeling (FDM) C. Electron beam melting (EBM) D. Electron binder jetting (BJ) E. Stereolithography (SL, SLA) F. Material jetting (MJ, DOD) G. Photopolymer jetting (PolyJet) Which of the following technologies build parts in engineering plastics? A. Laser melting (LM) B. Fused deposition modeling (FDM) C. Electron beam melting (EBM) D. Electron binder jetting (BJ) E. Stereolithography (SL, SLA) F. Material jetting (MJ, DOD) G. Photopolymer jetting (PolyJet) Which technology prints with Digital Materials? A. Laser melting (LM) B. Fused deposition modeling (FDM) C. Electron beam melting (EBM) D. Electron binder jetting (BJ) E. Stereolithography (SL, SLA) F. Material jetting (MJ, DOD) G. Photopolymer jetting (PolyJet) What considerations must you make when choosing a 3D printing technology? A. Material B. Durability C. Melting point D. Surface finish E. Focus group input F. Time G. Detail H. Application edu.curriculum@stratasys.com Something That Moves Something - Introduction to 3D Printing Created by Ohad Meyuhas, architect Unit 3: What is a Mesh? Essay Questions Explain the following: “A mesh can never be smooth.” Describe the relationship between resolution and mesh smoothness. Describe the relationship between mesh smoothness and file size. What can be learned by studying the designs of others? Multiple-Choice Questions Which term below describes a unique location in Euclidean space that has no dimensional attributes? A. Mesh B. Point C. Surface D. Line Which of the following is a two-dimensional shape? A. Point B. Line C. Surface D. Polygon Every mesh is a polysurface, but not every polysurface is a mesh. True or false? A. True B. False What is a watertight mesh? A. A mesh that will hold water B. A mesh with no holes, cracks or missing features (surfaces, polygons, lines or points) C. A mesh that was designed to float D. All of the above What type of mesh makes the smoothest model? A. High polygon density B. Smaller polygons C. Higher resolution D. All of the above For faster printing, your mesh should be A. Lower resolution B. Smaller polygons C. Fewer polygons D. None of these edu.curriculum@stratasys.com Something That Moves Something - Introduction to 3D Printing Created by Ohad Meyuhas, architect Unit 4: Ctrl+P Essay Questions Describe the advantages of designing an object using 3D software instead of 2D software. Describe the advantages of 2D software over hand sketches. Explain the role of CAM software in the printing process. Why is it needed? Multiple-Choice Questions Which of the following describes CAD advantages over freehand drawing? A. Higher design accuracy B. Reduced need for measuring tools C. Better design reuse capabilities D. No design limitations What was the storage medium on which manufacturing commands were encoded in NC machines? A. Standard RAM sticks B. Mini SD memory sticks C. Metal plates D. Cardboard slates Why would you need to repair your mesh? A. A mesh with holes will not print correctly B. A mesh with holes will damage the 3D printer C. A mesh with holes will double the material use D. A mesh with holes will print a faulty part edu.curriculum@stratasys.com Something That Moves Something - Introduction to 3D Printing Created by Ohad Meyuhas, architect Units 5 & 6: Closed Gear Systems Essay Questions Describe the unique considerations involved when designing a gear system for 3D printing. Multiple-Choice Questions Two or more gears working in tandem are called what? A. Torque B. Cog C. Rack D. Transmission What are the advantage(s) of using gear systems? A. Gear teeth prevent slippage B. Few elements can create great force C. Decreased power creates more force D. Gear systems are easy to design and manufacture Force transmitted from a small gear diameter to a larger gear diameter is A. Increased B. Decreased C. Stays the same D. None of the above In Spur gear systems, the tooth profile is A. inclined to the axis uploads/Industriel/ unit-9-midterm-exam-classroom.pdf