Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 872 · 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 500 recycled plastic bottles. How many benches can be made from 5000 bottles?
2. 2.True or false: a water tank needs a waterproof material. (a) False (b) True
3. 3.🔄 Which design-process step is it to measure its performance? (a) Test (b) Ask (c) Imagine (d) Plan
4. 4.🤝 A team of 3 shares 9 equal jobs fairly. Each job takes 8 minutes. How many minutes does each person work?
5. 5.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “choose and draw one”? (a) choose and draw one (b) build it with straws
6. 6.🔺 Which shape keeps its shape best when its corners are pinned? (a) triangle (b) rectangle (c) hexagon (d) square
7. 7.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) read the challenge rules (b) build it with straws
8. 8.🌉 In a suspension bridge, the main cables are in … (a) friction (b) no force (c) tension (d) compression
9. 9.🤝 In a design team, who checks the goals are met? (a) materials manager (b) tester (c) recorder (d) team leader
10. 10.True or false: a crowbar is a class 2 lever (load in the middle). (a) True (b) False
11. 11.True or false: “stand in a fan breeze” is a constraint (a limit). (a) False (b) True
12. 12.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) the youngest child (b) an adult (c) any child alone (d) a stranger
13. 13.True or false: “roll at least 2 metres” is a criterion (a goal). (a) True (b) False
14. 14.True or false: plucking a mango is a push. (a) False (b) True
15. 15.🪝 A bucket weighing 350 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
16. 16.🪝 A bucket weighing 380 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
17. 17.♻️ Reduce, reuse or recycle: print on both sides? (a) reuse (b) reduce (c) recycle
18. 18.🤝 A team of 5 shares 20 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
19. 19.🔢 To follow the engineering design process, what comes right after “Test”? (a) Plan (b) Improve (c) Create (d) Imagine
20. 20.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) sketch three ideas (b) choose and draw one
21. 21.🛞 Is friction helpful or a problem here: tyres wearing down? (a) a problem (b) helpful
22. 22.⚖️ A lever bar balances. The load is 120 N at ? cm from the fulcrum. The effort is 30 N at 40 cm from the fulcrum on the other side. What is the missing distance in centimetres?
23. 23.🪢 Tension or compression: a tall bridge tower? (a) compression (b) tension
24. 24.True or false: a tyre with deep treads gives less friction. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) touch a hot glue tip (b) play near a moving drill (c) cut towards your hand (d) clamp wood before sawing
26. 26.🔢 To follow the engineering design process, which comes first: “Plan” or “Imagine”? (a) Plan (b) Imagine
27. 27.Which of these is a beam bridge? (a) stones squeezed together (b) a log across a stream (c) a rope bridge in hills (d) pushes out on its ends
28. 28.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
29. 29.🤝 In a design team, who writes down results? (a) team leader (b) builder (c) materials manager (d) recorder
30. 30.🔄 Which design-process step is it to pick the build order? (a) Ask (b) Imagine (c) Plan (d) Create
31. 31.True or false: a mechanical engineer builds a website. (a) False (b) True
32. 32.True or false: a mechanical engineer designs a gearbox. (a) False (b) True
33. 33.🔄 Which design-process step is it to follow the plan to build? (a) Improve (b) Imagine (c) Create (d) Test
34. 34.True or false: a movable pulley halves the effort. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) oil on a squeaky hinge (b) a wet tiled floor (c) a rough doormat (d) powder on a carrom board
36. 36.🏋️ Work is done when a force moves something … (a) only upwards (b) through a distance (c) very slowly (d) without moving it
37. 37.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) far from the fulcrum (b) near the fulcrum (c) on the fulcrum (d) on the rock
38. 38.⚖️ Which class of lever is a beam balance? (a) class 3 (b) class 1 (c) class 2
39. 39.True or false: to help a stuck teammate is good teamwork. (a) True (b) False
40. 40.🏋️ A machine lifts a load of 480 N when you push with 120 N. What is its mechanical advantage (MA)?

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