Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 514 · 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.♻️ A school bench is made from 100 recycled plastic bottles. How many benches can be made from 300 bottles?
2. 2.True or false: a well-bucket rope wheel is a wedge. (a) True (b) False
3. 3.🔢 To follow the engineering design process, which is the LAST step? (a) Imagine (b) Ask (c) Plan (d) Improve
4. 4.True or false: to check it against goals is the Ask step. (a) False (b) True
5. 5.🪝 Fixed or movable pulley: which one stays in one place? (a) a fixed pulley (b) a movable pulley
6. 6.⚖️ What is the pivot point of a lever called? (a) the load (b) the fulcrum (c) the effort (d) the axle
7. 7.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.True or false: a crowbar is a class 1 lever (fulcrum in the middle). (a) False (b) True
9. 9.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
10. 10.🛠️ What does an engineer do before building anything? (a) builds at once (b) buys every material (c) paints the model (d) understands the problem
11. 11.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) build it with straws (b) sketch three ideas (c) strengthen the weak part (d) read the challenge rules
12. 12.⚖️ A seesaw balances. Asha (360 N) sits ? m from the pivot on one side; Kabir (360 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
13. 13.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Create (b) Imagine (c) Plan (d) Improve
14. 14.🪢 Compression is a force that … (a) pushes or squeezes (b) pulls or stretches (c) cools things (d) makes light
15. 15.What does the builder do? (a) keeps the team on track (b) checks the goals are met (c) puts the model together (d) collects the supplies
16. 16.Which of these is made by engineers? (a) a seashell (b) a mountain (c) a river (d) a bridge
17. 17.💪 A bag has a mass of 41 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
18. 18.True or false: a fixed pulley needs effort = load. (a) False (b) True
19. 19.True or false: a computer engineer designs bicycle gears. (a) False (b) True
20. 20.🔄 After testing, a design does not work well. What comes next? (a) Imagine (b) Ask (c) Improve (d) give up
21. 21.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
22. 22.What does the team leader do? (a) runs the tests (b) cuts and joins parts (c) shares out the jobs (d) puts the model together
23. 23.What does the materials manager do? (a) keeps the design notes (b) checks the goals are met (c) shares out the jobs (d) tracks what is used up
24. 24.Which job does an electrical engineer do? (a) lays out a highway (b) designs power lines (c) designs satellites (d) designs bicycle gears
25. 25.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 20 cm and the load at 10 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
26. 26.True or false: a planetarium roof uses a dome. (a) True (b) False
27. 27.📋 A constraint is … (a) a kind of glue (b) a goal for success (c) a final test (d) a limit you must keep to
28. 28.🔺 Which shape keeps its shape best when its corners are pinned? (a) square (b) hexagon (c) rectangle (d) triangle
29. 29.🌉 In a stone arch bridge, the stones are in … (a) no force (b) friction (c) tension (d) compression
30. 30.🔧 Which tool would you use to measure a long length? (a) a tape measure (b) a protractor (c) a saw (d) a screwdriver
31. 31.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 80 cm and the load at 20 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
32. 32.🪝 A winch has a wheel of radius 21 cm and an axle of radius 3 cm. What effort on the wheel lifts a 770 N bucket on the axle, in newtons? (ideal)
33. 33.Which of these needs an electrical conductor? (a) a raincoat (b) a boat hull (c) a spectacle lens (d) a plug pin
34. 34.🤝 A team plans for 35 minutes, builds for 30 minutes and then tests for 20 minutes, one after another. How many minutes is that in all?
35. 35.🪢 Tension or compression: a table leg? (a) tension (b) compression
36. 36.True or false: a biomedical engineer designs a gearbox. (a) True (b) False
37. 37.True or false: a mechanical engineer plans a space mission. (a) False (b) True
38. 38.True or false: a jar lid is a lever. (a) False (b) True
39. 39.Which of these is a beam bridge? (a) pushes out on its ends (b) cables tied down at ends (c) good for short gaps (d) tall towers hold cables
40. 40.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) clay pottery (d) graphite

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