HL+Exam

8809-6201 15 pages N09/4/DESTE/HPM/ENG/TZ0/XX Tuesday 3 November 2009 (afternoon) DESIGN TECHNOLOGY HIGHER LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question, choose the answer you consider to be the best and indicate your choice on  the answer sheet provided. 1 hour © International Baccalaureate Organization 2009 88096201 8809-6201  – 2 – N09/4/DESTE/HPM/ENG/TZ0/XX 1. What is an example of convergent thinking? A. Brainstorming B. Adaptation C. Analogy D. Attribute listing 2. What is an advantage of using mathematical models? A. Symbolic representation B. Physical representation C. Scale representation D. Graphical representation 3. Which drawing technique demonstrates foreshortening? A. Freehand B. Isometric C. Perspective D. Orthographic 4. Which statement relates to innovation? A. A novel idea B. Diffusion into the market place C. Incremental design D. Constructive discontent 8809-6201 – 3 –  Turn over N09/4/DESTE/HPM/ENG/TZ0/XX 5. Which products are in the mature stage of their product life cycle? A. Solar panels B. Smart buildings C. Ballpoint pens D. Steam engines 6. Who would dislike discussing environmental protection? A. Eco-champion B. Eco-fan C. Eco-warrior D. Eco-phobe 7. What is a consideration of life cycle analysis? A. The effect a product has on the customer B. The design in relation to customer needs C. The effect a product has on the environment D. The predicted life span of a product 8. Which material can be easily and economically recycled? A. Nickel B. Thermoset plastic C. Superalloy D. Plywood 8809-6201 – 4 – N09/4/DESTE/HPM/ENG/TZ0/XX 9. Which combination of properties is important in the design of a frying pan handle? A. Stiffness Thermal expansivity B. Toughness Thermal conductivity C. Toughness Thermal expansivity D. Stiffness Thermal conductivity 10. What is an alloy composed of ? A. Only metals B. At least one metal C. Two or more substances D. Only ceramics 11. What is a characteristic of laminated wood? I. Uniform strength II. Use of an adhesive III. Resistant to decay A. I and II only B. I and III only C. II and III only D. I, II and III 8809-6201 – 5 –  Turn over N09/4/DESTE/HPM/ENG/TZ0/XX 12. What characteristic makes metal a good electrical conductor? A. Positively charged nuclei B. Crystalline structure C. Free electrons D. Small grain size 13. What is a composite made of? A. At least two materials of which one is metal B. A mixture where one material acts as the matrix or glue C. At least three different materials, one of which is glue D. Two compatible materials 14. Which manufacturing technique would be used to design for disassembly? A. Using adhesives B. Using fasteners C. Fusing D. Stitching 8809-6201 – 6 – N09/4/DESTE/HPM/ENG/TZ0/XX 15. Which product is least likely to be mass produced? A. The Airbus A380 B. The Ford Model T  [Source: www.zdnet.com.au] [Source: www.musclecarclub.com, reproduced with permission.] C. iPod D. Plastic cutlery Courtesy of Apple 16. Which production system allows for variations on a basic product? A. Assembly line B. Computer-aided manufacturing C. Mass production D. Mass customization 8809-6201 – 7 –  Turn over N09/4/DESTE/HPM/ENG/TZ0/XX 17. Which cost is a major contribution to the final cost of a new wind turbine design? A. Advertising B. Materials C. Energy in manufacturing D. Research and development 18. Which design consideration does ** not ** apply to motorcycle helmets? A. Range of sizes B. Adjustability C. Suitable for 50 th  percentile D. Safety 19. Which combination of evaluation techniques would be a low cost strategy to obtain qualitative data? A. User research User trial B. User research Performance test C. Field trial User trial D. Field trial Performance test 20. What is an advantage of conducting a literature search for data collection? A. Data is difficult to obtain B. Data may come from many sources C. Data is always free D. Data is always reliable 8809-6201 – 8 – N09/4/DESTE/HPM/ENG/TZ0/XX 21. What is a disadvantage of large-scale electricity production? A. Allows distribution of electricity over a large area B. Security of supply C. High capital costs D. Allows volume production 22. What is a suitable location for solar cookers? A. Remote locations B. In a restaurant C. Urban areas D. Where constant use is required 23. What is a consideration of the increased use of nuclear power? A. Suitable for all locations B. Power grid distribution C. Short life cycle D. Storage of waste 24. What are the units for mass? A. N/m 2 B. kg C. kg/m  2 D. m 2  /N 8809-6201 – 9 –  Turn over N09/4/DESTE/HPM/ENG/TZ0/XX 25. What mechanical motion is used with this screwdriver? A. Torque B. Rotary C. Reciprocating D. Irregular 26. Which mechanism includes a linkage? A. TV remote control B. Water tap C. Foot operated rubbish bin D. Frying pan 8809-6201 – 10 – N09/4/DESTE/HPM/ENG/TZ0/XX 27. Which of the following is an example of a third class lever? A. B.  [Source: www.fl yingfi ngers.com] [Source: Pearson Scott Foresman, donated to the Wikimedia Foundation] C. D. [Source:www.eleganzainternational.net] [Source: www.gettyimages.co.uk] 28. Why are plastic bottle caps standardized? A. To reduce fi xed costs B. To reduce variable costs C. To limit design specifi cations D. To encourage recycling 8809-6201 – 11 –  Turn over N09/4/DESTE/HPM/ENG/TZ0/XX 29. Which products are most likely to be formed by a spray-up process? A. Pipes B. Oars C. Pleasure Boats D. Fishing rods 30. What is an advantage of die-casting? A. It is a clean technology B. It can be used for a wide range of alloys C. It has a high rate of production D. It has low tooling costs 31. How can water resources be ** best ** conserved in house design? I. Low flush toilets II. Push taps (faucets) on hand basins III. Water collection tanks A. I and II only B. II only C. III only D. I, II and III 8809-6201 – 12 – N09/4/DESTE/HPM/ENG/TZ0/XX 32. What makes a technology appropriate? A. High in capital costs B. Uses renewable resources C. Complex to maintain D. Includes planned obsolescence 33. Why is it difficult for governments and manufacturers to agree on targets for sustainable development? A. Achieving imposed targets may reduce profits B. Government is local and manufacturing is global C. Manufacturing is important D. Consumers determine the targets 34. Which recommendations would make a house more sustainable? I. Planting of trees and shrubs in an appropriate location II. Installing daylighting III. Installing water saving shower heads A. I and II only B. II and III only C. I and III only D. I, II and III 35. What is ** not ** an advantage of using technology in an intelligent building? A. User productivity B. Energy efficiency C. Improved immediate surrounding environment D. Healthy building environment 8809-6201 – 13 –  Turn over N09/4/DESTE/HPM/ENG/TZ0/XX Blank page 8809-6201 – 14 – N09/4/DESTE/HPM/ENG/TZ0/XX Questions 36–40 relate to the following case study. Please read the case study carefully and answer the questions. The Sydney Harbour Bridge is a steel arch bridge (Figure 1) across Sydney Harbour, carrying rail, vehicular, and pedestrian traffi c between the north and south shores. In 1932, the average annual daily traffi c was around 11,000 and now it is around 160,000 cars per day, causing a massive strain on the bridge capacity. The bridge’s four original traffi c lanes have been increased to eight to compensate for the extra cars. The bridge deck portion of the highway is concrete and lies on steel beams that run along the length of the bridge. There are 58,000 tons of steel in the bridge, and the members are joined with approximately 6, 000, 000 rivets. Figure 1: Sydney Harbour Bridge [Source: www.commons.wikimedia.org/wiki/fi le:SydneyHarbour] 36. What characteristic of steel makes it appropriate for use in the arch section of the bridge? I Compression II Tension III Torsion A. I only B. II only C. III only D. I and II only 8809-6201 – 15 – N09/4/DESTE/HPM/ENG/TZ0/XX 37. Why were rivets used as the main joining technique for the bridge members? A. So it could be easily disassembled at a later date B. Parts were preassembled and transported to the site C. They are a form of permanent joint D. They resist moisture and do not rust 38. What design decision could be taken to make the bridge more compatible with sustainable development? A. Widen the bridge to increase the number of car lanes B. Narrow each car lane to make room for more C. Construct an extra deck on the bridge D. Increase the number of “bus only” lanes 39. What is the result of increasing the number of car lanes on the bridge without making modifications to  the structure? Factor of safety Normal maximum load A. Up Down B. Down Down C. Up Up  D. Down Up   40. What is the result when external load is applied to the beams suspending the bridge deck? A. Plastic deformation B. Elastic deformation C. Elastic and plastic deformation D. No deformation