Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 799 · 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.True or false: a bottle opener is a lever. (a) False (b) True
2. 2.📐 On a plan, 1 cm stands for 20 m. A wall is 18 cm long on the plan. How long is the real wall, in metres?
3. 3.⚖️ Going along a lever from one end to the other, the order is: fulcrum, load, effort. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
4. 4.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🔢 To follow the engineering design process, what comes right after “Plan”? (a) Create (b) Imagine (c) Improve (d) Ask
6. 6.🛞 How can we reduce friction in a machine? (a) oil the moving parts (b) make parts rough (c) press parts harder (d) add sand
7. 7.🔍 Which is the odd one out? (a) use a new load each time (b) test it only once (c) use the same load (d) hide a failed test
8. 8.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Improve (b) Imagine (c) Plan (d) Create
9. 9.🏋️ Pushing a crate 4 m took 1680 J of work. What force was used, in newtons?
10. 10.🪢 A concrete slab weighing 10500 N rests evenly on 5 identical pillars. What compression force does each pillar carry, in newtons?
11. 11.🏋️ Pushing a crate 7 m took 490 J of work. What force was used, in newtons?
12. 12.Which of these happens in the Plan step? (a) pick the build order (b) make a prototype (c) dream up possible fixes (d) make it better, retest
13. 13.📋 For a model bridge challenge, is “lift a cup of water” a constraint or a criterion? (a) a constraint (b) a criterion
14. 14.⚙️ Which simple machine is a water tap handle? (a) pulley (b) wheel and axle (c) lever (d) wedge
15. 15.True or false: to run while holding tools is not safe. (a) True (b) False
16. 16.🛞 More or less friction: chalk on a gym bar? (a) more friction (b) less friction
17. 17.True or false: a wood screw is a screw. (a) False (b) True
18. 18.Which of these is reuse (use again)? (a) refill a water bottle (b) pulp old paper (c) print on both sides (d) switch off unused lights
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
20. 20.🔄 Is the engineering design process done only once? (a) yes, only once (b) only for big jobs (c) only on Sundays (d) no, it repeats
21. 21.True or false: a mechanical engineer writes app software. (a) False (b) True
22. 22.🌉 Which bridge type: “good for short gaps”? (a) arch bridge (b) beam bridge (c) suspension bridge
23. 23.🏋️ A force of 110 N pushes a cart 10 m along the floor. How much work is done, in joules?
24. 24.Which job does a civil engineer do? (a) runs a fertiliser plant (b) designs hearing aids (c) lays out a highway (d) designs aeroplane wings
25. 25.⚖️ A seesaw balances. Meena (? N) sits 3 m from the pivot on one side; Kabir (390 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
26. 26.💪 A force is a … (a) kind of colour (b) push or a pull (c) unit of time (d) type of sound
27. 27.🪝 A pulley system lifts a 560 N load with an effort of 140 N. What is its mechanical advantage (MA)?
28. 28.📐 On a plan, 1 cm stands for 20 m. A wall is 4 cm long on the plan. How long is the real wall, in metres?
29. 29.Which need does a telephone meet? (a) carry many people far (b) talk to someone far away (c) cross a wide river (d) reach a top floor fast
30. 30.📐 A beam is 300 cm long. How long is it in metres? =
31. 31.True or false: a telephone helps people talk to someone far away. (a) True (b) False
32. 32.⚖️ A lever bar balances. The load is 210 N at 10 cm from the fulcrum. The effort is 70 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
33. 33.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🔢 To follow the engineering design process, which comes first: “Test” or “Ask”? (a) Ask (b) Test
35. 35.🪢 Compression is a force that … (a) makes light (b) cools things (c) pulls or stretches (d) pushes or squeezes
36. 36.🏋️ A machine lifts a load of 510 N when you push with 170 N. What is its mechanical advantage (MA)?
37. 37.What does the tester do? (a) keeps the team on track (b) puts the model together (c) runs the tests (d) shares out the jobs
38. 38.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) computer (b) biomedical (c) chemical (d) civil
39. 39.🤝 Is it good or poor teamwork to talk over others? (a) good teamwork (b) poor teamwork
40. 40.True or false: to tighten a nut, use a spanner. (a) True (b) False

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