Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 746 · 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 job does a biomedical engineer do? (a) refines crude oil (b) designs a paint factory (c) designs artificial limbs (d) plans a dam
2. 2.🪝 A well winch has a handle (wheel) of radius 30 cm turning an axle of radius 5 cm. What is its mechanical advantage (MA)?
3. 3.🔄 Which design-process step is it to ask who will use it? (a) Create (b) Plan (c) Ask (d) Improve
4. 4.♻️ Which is the BEST order to think about waste? (a) reuse, recycle, reduce (b) reduce, reuse, recycle (c) recycle, reuse, reduce (d) burn, bury, forget
5. 5.⚖️ A lever bar balances. The load is 180 N at ? cm from the fulcrum. The effort is 120 N at 60 cm from the fulcrum on the other side. What is the missing distance in centimetres?
6. 6.🔺 Which strong shape does a roof truss use? (a) arch (b) beam (c) dome (d) triangle
7. 7.True or false: an electrical engineer wires a new building. (a) False (b) True
8. 8.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) keeping a simple shape (c) making brittle joints (d) stacking loose bricks
9. 9.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on a thin pole (d) on the very top
10. 10.🔍 Which is the odd one out? (a) a wheel on ball bearings (b) oil on a squeaky hinge (c) a tyre with deep treads (d) a smooth steel slide
11. 11.🌉 Which bridge type: “good for short gaps”? (a) beam bridge (b) arch bridge (c) suspension bridge
12. 12.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a constraint (b) a criterion
13. 13.Which of these happens in the Plan step? (a) pick the build order (b) define the problem (c) find the limits (d) fix the weak part
14. 14.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 11 N, a glass sheet 1 N, a wooden plank 5 N, a carpet 9 N. How many newtons more were needed on sandpaper than on a glass sheet?
15. 15.🦺 In the workshop, is it safe to tie back long hair? (a) safe (b) not safe
16. 16.True or false: hitting a cricket ball is a push. (a) False (b) True
17. 17.🪢 A sign weighing 50 N hangs from 5 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
18. 18.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
19. 19.Which of these happens in the Create step? (a) find the limits (b) follow the plan to build (c) list the materials (d) dream up possible fixes
20. 20.🔢 To follow the engineering design process, which is the FIRST step? (a) Plan (b) Create (c) Test (d) Ask
21. 21.True or false: a chemical engineer keeps data safe online. (a) False (b) True
22. 22.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
23. 23.♻️ Reduce, reuse or recycle: buy less packaging? (a) reuse (b) reduce (c) recycle
24. 24.🏋️ Mechanical advantage (MA) = … (a) load ÷ effort (b) load + effort (c) load × effort (d) effort ÷ load
25. 25.🔺 A frame shaped like a square is made of straws joined by loose pins, with 1 corner-to-corner brace. Is it rigid or wobbly? (a) wobbly (b) rigid
26. 26.Which need does a water filter meet? (a) see very tiny things (b) make water safe to drink (c) store water for summer (d) make power from sunlight
27. 27.🤝 In a design team, who runs the tests? (a) builder (b) materials manager (c) tester (d) recorder
28. 28.⚖️ Along a straight bar, measured from the left end, the effort is at 60 cm, the fulcrum at 30 cm and the load at 50 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
29. 29.True or false: a slab over a canal uses a beam. (a) True (b) False
30. 30.📐 On a plan, 1 cm stands for 2 m. A wall is 4 cm long on the plan. How long is the real wall, in metres?
31. 31.🤝 In a design team, who shares out the jobs? (a) materials manager (b) tester (c) recorder (d) team leader
32. 32.True or false: to measure the same way is poor testing. (a) False (b) True
33. 33.🤝 Is it good or poor teamwork to hide a mistake? (a) poor teamwork (b) good teamwork
34. 34.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 80 cm and the load at 20 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
35. 35.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding steel to concrete (c) using a light roof (d) leaving out steel bars
36. 36.🏋️ A 7 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
37. 37.📐 On a plan, 1 cm stands for 20 m. A real bridge is 320 m long. How long is it on the plan, in centimetres?
38. 38.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they bend, not break (d) they are cheap
39. 39.⚖️ A lever balances when … (a) turning effects match (b) both weights are equal (c) the fulcrum moves (d) the bar is short
40. 40.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) biomedical (b) mechanical (c) chemical (d) civil

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