Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 399 · 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.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) civil (b) biomedical (c) electrical (d) aerospace
2. 2.🪢 Tension or compression: a tall bridge tower? (a) tension (b) compression
3. 3.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) only on Mondays (c) no, work stays the same (d) yes, by half
4. 4.🌉 A beam bridge 135 m long is split by piers into 3 equal spans. How long is each span, in metres?
5. 5.🤝 A team of 3 shares 6 equal jobs fairly. Each job takes 8 minutes. How many minutes does each person work?
6. 6.True or false: to blame others for faults is poor teamwork. (a) True (b) False
7. 7.True or false: a swing chain is in compression (pushed). (a) True (b) False
8. 8.🦺 In the workshop, is it safe to run while holding tools? (a) safe (b) not safe
9. 9.True or false: a computer engineer writes app software. (a) True (b) False
10. 10.📐 On a plan, 1 cm stands for 2 m. A wall is 3 cm long on the plan. How long is the real wall, in metres?
11. 11.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they bend, not break (d) they are cheap
12. 12.Which need does a train meet? (a) carry many people far (b) reach a top floor fast (c) cross a wide river (d) keep food fresh longer
13. 13.🤝 A team of 2 shares 10 equal jobs fairly. Each job takes 7 minutes. How many minutes does each person work?
14. 14.🦺 In the workshop, is it safe to let adults use hot glue? (a) not safe (b) safe
15. 15.🏋️ A force of 110 N pushes a cart 3 m along the floor. How much work is done, in joules?
16. 16.True or false: to hide a mistake is poor teamwork. (a) True (b) False
17. 17.🌉 Which bridge type: “the simplest bridge”? (a) beam bridge (b) arch bridge (c) suspension bridge
18. 18.⚖️ Which class of lever is a pair of scissors? (a) class 2 (b) class 3 (c) class 1
19. 19.What does the materials manager do? (a) keeps the design notes (b) runs the tests (c) cuts and joins parts (d) tracks what is used up
20. 20.🧪 A paper bridge was tested three times. It held 290 g, 160 g and 150 g. What is the mean (average) load it held, in grams?
21. 21.🤝 In a design team, who collects the supplies? (a) team leader (b) materials manager (c) tester (d) recorder
22. 22.🏋️ A 3 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
23. 23.🔄 Is the engineering design process done only once? (a) yes, only once (b) only for big jobs (c) no, it repeats (d) only on Sundays
24. 24.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
25. 25.🏋️ A force of 390 N did 780 J of work. How many metres did the object move?
26. 26.🔄 After testing, a design does not work well. What comes next? (a) Improve (b) Imagine (c) give up (d) Ask
27. 27.🔍 Which is the odd one out? (a) a suspension cable (b) a tug of war rope (c) a squeezed spring (d) a tow rope on a car
28. 28.True or false: a computer engineer designs school networks. (a) True (b) False
29. 29.True or false: a broom when sweeping is a class 1 lever (fulcrum in the middle). (a) True (b) False
30. 30.⚖️ On a seesaw, a heavier child should sit … (a) closer to the pivot (b) farther from the pivot (c) anywhere (d) on the pivot
31. 31.Which of these uses triangles? (a) a truss bridge side (b) an old stone bridge (c) a slab over a canal (d) a plank over a drain
32. 32.🌉 Which bridge type can cross the widest gap in one span? (a) suspension bridge (b) beam bridge (c) arch bridge (d) log bridge
33. 33.🔄 Which design-process step is it to think of wild ideas? (a) Imagine (b) Plan (c) Test (d) Ask
34. 34.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
35. 35.♻️ A school bench is made from 100 recycled plastic bottles. How many benches can be made from 200 bottles?
36. 36.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
37. 37.True or false: a tug of war rope is in compression (pushed). (a) False (b) True
38. 38.True or false: a hanging lamp chain is in compression (pushed). (a) True (b) False
39. 39.📐 On a plan, 1 cm stands for 5 m. A wall is 2 cm long on the plan. How long is the real wall, in metres?
40. 40.🪝 A well winch has a handle (wheel) of radius 35 cm turning an axle of radius 5 cm. What is its mechanical advantage (MA)?

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