Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 670 · 40 questions

Engineer's tip (Find the topic, use the idea): Find the topic: design process, force, machine, lever, structure, material, bridge or scale. Use that lesson’s rule — what is in the middle, load × distance = effort × distance, work = force × distance, real = drawing × scale. Write the calculation before you answer.

1. 1.📋 Criterion: the model bridge must hold at least 200 g. In the test it held 250 g. Does it meet the criterion? (a) No (b) Yes
2. 2.Which of these happens in the Test step? (a) make it better, retest (b) check it against goals (c) think of wild ideas (d) follow the plan to build
3. 3.🔺 One side of a straw bridge is a row of 10 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
4. 4.True or false: “a curve under the deck” is an arch bridge. (a) True (b) False
5. 5.♻️ A project report has 42 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
6. 6.🔍 Which is the odd one out? (a) a crane lifting cable (b) a tow rope on a car (c) a brick at a wall base (d) a hanging lamp chain
7. 7.🔺 One side of a straw bridge is a row of 1 triangle standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
8. 8.True or false: a fixed pulley makes you pull 2× rope. (a) True (b) False
9. 9.True or false: a lemon squeezer is a class 2 lever (load in the middle). (a) True (b) False
10. 10.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they are cheap (d) they bend, not break
11. 11.True or false: “fit on a school desk” is a constraint (a limit). (a) True (b) False
12. 12.True or false: to turn a screw, use a screwdriver. (a) False (b) True
13. 13.🤝 In a design team, who checks the goals are met? (a) team leader (b) materials manager (c) builder (d) tester
14. 14.True or false: the tip of a nail is a wedge. (a) False (b) True
15. 15.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is colourful (d) it is lighter
16. 16.🔍 Which is the odd one out? (a) finish in 40 minutes (b) lift a cup of water (c) float for 1 minute (d) roll at least 2 metres
17. 17.🏋️ A smooth ramp is 12 m long and rises 2 m. What effort pushes a 4500 N box up it, in newtons? (ideal ramp, no friction)
18. 18.🛠️ Is a banyan tree made by engineers or found in nature? (a) found in nature (b) made by engineers
19. 19.True or false: “use only paper and tape” is a criterion (a goal). (a) True (b) False
20. 20.Which of these is a pulley? (a) a well-bucket rope wheel (b) a claw hammer on a nail (c) a well winch handle (d) a round doorknob
21. 21.🔄 Which design-process step is it to dream up possible fixes? (a) Imagine (b) Create (c) Ask (d) Plan
22. 22.⚙️ Which simple machine is a knife edge? (a) wheel and axle (b) inclined plane (c) lever (d) wedge
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 240 g and design C held 190 g. Which design was the weakest? (a) design C (b) design A (c) design B
24. 24.True or false: a bicycle is found in nature. (a) True (b) False
25. 25.🪢 Tension or compression: a brick at a wall base? (a) compression (b) tension
26. 26.⚖️ On a seesaw, a heavier child should sit … (a) closer to the pivot (b) on the pivot (c) anywhere (d) farther from the pivot
27. 27.🛞 More or less friction: oil on a squeaky hinge? (a) less friction (b) more friction
28. 28.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) civil (b) electrical (c) aerospace (d) biomedical
29. 29.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🛞 More or less friction: sand on a slippery path? (a) less friction (b) more friction
31. 31.Which of these is reuse (use again)? (a) buy less packaging (b) carry a cloth bag (c) switch off unused lights (d) refill a water bottle
32. 32.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) civil (b) biomedical (c) computer (d) chemical
33. 33.🪢 A concrete slab weighing 400 N rests evenly on 4 identical pillars. What compression force does each pillar carry, in newtons?
34. 34.Which of these uses a beam? (a) a lintel over a door (b) a round palace roof (c) a roof truss (d) an old stone bridge
35. 35.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 3 N, a carpet 5 N, sandpaper 9 N, a glass sheet 2 N. How many newtons more were needed on sandpaper than on a glass sheet?
36. 36.🌉 Which bridge type can cross the widest gap in one span? (a) suspension bridge (b) log bridge (c) arch bridge (d) beam bridge
37. 37.🤝 A team of 5 shares 10 equal jobs fairly. Each job takes 4 minutes. How many minutes does each person work?
38. 38.⚖️ Along a straight bar, measured from the left end, the effort is at 80 cm, the fulcrum at 70 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
39. 39.🤝 A team of 2 shares 4 equal jobs fairly. Each job takes 10 minutes. How many minutes does each person work?
40. 40.🔄 In which step do engineers draw a labelled diagram? (a) Ask (b) Plan (c) Test (d) Improve

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