Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 628 · 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.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 0 cm and the load at 30 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
2. 2.⚖️ A lever balances when … (a) the fulcrum moves (b) both weights are equal (c) the bar is short (d) turning effects match
3. 3.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) civil (b) biomedical (c) chemical (d) mechanical
4. 4.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
5. 5.🛠️ What does an engineer do before building anything? (a) understands the problem (b) buys every material (c) builds at once (d) paints the model
6. 6.🔢 To follow the engineering design process, which comes first: “Ask” or “Improve”? (a) Ask (b) Improve
7. 7.True or false: “deck hangs from cables” is an arch bridge. (a) False (b) True
8. 8.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a criterion (b) a constraint
9. 9.True or false: a banyan tree is made by engineers. (a) False (b) True
10. 10.🤝 A team of 5 shares 10 equal jobs fairly. Each job takes 2 minutes. How many minutes does each person work?
11. 11.🔍 Which is the odd one out? (a) a swing chain (b) a stretched rubber band (c) a tent guy rope (d) a tall bridge tower
12. 12.🔺 Which strong shape does a fort gateway use? (a) beam (b) dome (c) arch (d) triangle
13. 13.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 60 cm and the load at 50 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
14. 14.🔄 Which design-process step is it to build the model? (a) Create (b) Improve (c) Plan (d) Ask
15. 15.🤝 In a design team, who runs the tests? (a) builder (b) team leader (c) recorder (d) tester
16. 16.True or false: a boat hull needs an electrical conductor. (a) False (b) True
17. 17.♻️ Is petrol a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
18. 18.True or false: an electrical engineer designs power lines. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) a bottle opener (b) a playground slide (c) a truck loading ramp (d) a road up a hill
20. 20.Which of these uses a beam? (a) a truss bridge side (b) a lintel over a door (c) an igloo (d) a bicycle frame
21. 21.🤝 In a design team, who keeps the team on track? (a) recorder (b) builder (c) materials manager (d) team leader
22. 22.🪝 A wheel and axle is a big wheel fixed to … (a) a smaller rod (axle) (b) a loose rope (c) a flat ramp (d) a sharp wedge
23. 23.📐 Why do engineers use scale drawings? (a) to hide sizes (b) to make them pretty (c) to save ink only (d) big things fit on paper
24. 24.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to avoid testing (d) to test ideas cheaply
25. 25.🤝 A team plans for 50 minutes, builds for 10 minutes and then tests for 10 minutes, one after another. How many minutes is that in all?
26. 26.📋 Criterion: the model bridge must hold at least 600 g. In the test it held 600 g. Does it meet the criterion? (a) No (b) Yes
27. 27.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 400 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
28. 28.True or false: to cut towards your hand is not safe. (a) False (b) True
29. 29.🌉 Which bridge type: “a flat deck on piers”? (a) beam bridge (b) suspension bridge (c) arch bridge
30. 30.What does the materials manager do? (a) keeps the design notes (b) runs the tests (c) shares out the jobs (d) collects the supplies
31. 31.True or false: a civil engineer designs power lines. (a) False (b) True
32. 32.🛠️ People need to talk to someone far away. Which invention helps? (a) a telephone (b) a bridge (c) a fridge (d) a dam
33. 33.True or false: a crowbar is a class 1 lever (fulcrum in the middle). (a) True (b) False
34. 34.⚖️ A lever bar balances. The load is 200 N at 10 cm from the fulcrum. The effort is ? N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
35. 35.Which of these is found in nature? (a) a railway track (b) a ceiling fan (c) a mountain (d) a lift
36. 36.🔍 Which is the odd one out? (a) use a new load each time (b) use the same load (c) hide a failed test (d) guess, do not measure
37. 37.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
38. 38.♻️ Reduce, reuse or recycle: carry a cloth bag? (a) recycle (b) reduce (c) reuse
39. 39.True or false: sunlight is a non-renewable energy source. (a) True (b) False
40. 40.🏋️ Can a simple machine reduce the work done? (a) no, work stays the same (b) yes, always (c) yes, by half (d) only on Mondays

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids