Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 20 · 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.♻️ Reduce, reuse or recycle: give old books away? (a) reuse (b) reduce (c) recycle
2. 2.🤝 Is it good or poor teamwork to give kind feedback? (a) poor teamwork (b) good teamwork
3. 3.True or false: a crane hook block is a screw. (a) True (b) False
4. 4.⚖️ A seesaw balances. Kabir (440 N) sits 2 m from the pivot on one side; Meena (220 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
5. 5.🔍 Which is the odd one out? (a) stand in a fan breeze (b) lift a cup of water (c) be under 30 cm tall (d) roll at least 2 metres
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 280 g and design C held 380 g. Which design was the strongest? (a) design B (b) design C (c) design A
7. 7.What does the tester do? (a) keeps the team on track (b) checks the goals are met (c) cuts and joins parts (d) collects the supplies
8. 8.True or false: a pair of pliers is a class 1 lever (fulcrum in the middle). (a) True (b) False
9. 9.🛠️ People need to go through a mountain. Which invention helps? (a) a solar panel (b) a tunnel (c) a bridge (d) a microscope
10. 10.🛞 Rubbing your hands fast makes them … (a) cold (b) magnetic (c) wet (d) warm
11. 11.🌉 A beam bridge 270 m long is split by piers into 6 equal spans. How long is each span, in metres?
12. 12.🔄 Which design-process step is it to dream up possible fixes? (a) Ask (b) Imagine (c) Test (d) Improve
13. 13.⚖️ A lever balances when … (a) both weights are equal (b) the fulcrum moves (c) turning effects match (d) the bar is short
14. 14.Which of these is a suspension bridge? (a) the simplest bridge (b) pushes out on its ends (c) deck hangs from cables (d) good for short gaps
15. 15.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 60 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
16. 16.🧑‍🔧 Which kind of engineer plans a space mission? (a) mechanical (b) civil (c) aerospace (d) biomedical
17. 17.⚙️ How many simple machines are there in the usual list? (a) 10 (b) 12 (c) 6 (d) 3
18. 18.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a constraint (b) a criterion
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
20. 20.🔢 To follow the engineering design process, which comes first: “Plan” or “Imagine”? (a) Plan (b) Imagine
21. 21.📋 Your team’s budget is ₹86. You must buy one roll of tape for ₹20. Straws cost ₹5 each. What is the greatest number of straws you can buy?
22. 22.♻️ Which is the BEST order to think about waste? (a) reduce, reuse, recycle (b) burn, bury, forget (c) reuse, recycle, reduce (d) recycle, reuse, reduce
23. 23.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) mechanical (b) civil (c) chemical (d) biomedical
24. 24.🏋️ A longer ramp to the same height needs … (a) less effort (b) no effort (c) the same effort (d) more effort
25. 25.🧱 Which property matters most for the core of a wire? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
26. 26.True or false: to change lots at once is poor testing. (a) True (b) False
27. 27.⚙️ A wedge is … (a) a wheel on a rod (b) a bar on a pivot (c) a rope on a wheel (d) two ramps back to back
28. 28.Which of these is a beam bridge? (a) a flat deck on piers (b) tall towers hold cables (c) the longest spans of all (d) a rope bridge in hills
29. 29.📐 How many millimetres are in 1 centimetre? (a) 5 (b) 10 (c) 1000 (d) 100
30. 30.🛞 More or less friction: chalk on a gym bar? (a) less friction (b) more friction
31. 31.Which of these is found in nature? (a) a lift (b) a river (c) a railway track (d) a mobile phone
32. 32.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.True or false: to drive in a nail, use sandpaper. (a) False (b) True
34. 34.📐 How many centimetres are in 1 metre? (a) 100 (b) 60 (c) 1000 (d) 10
35. 35.🪝 A bucket weighing 90 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
36. 36.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a criterion (b) a constraint
37. 37.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 10 cm and the load at 70 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
38. 38.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) computer (b) chemical (c) civil (d) aerospace
39. 39.True or false: “float for 1 minute” is a constraint (a limit). (a) False (b) True
40. 40.Which of these happens in the Create step? (a) define the problem (b) dream up possible fixes (c) build the model (d) list the materials

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