Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 132 · 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.🪝 A pulley system lifts a 120 N load with an effort of 30 N. What is its mechanical advantage (MA)?
2. 2.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
3. 3.🏋️ In which unit is work measured? (a) watt hour (b) joule (J) (c) metre (m) (d) newton (N)
4. 4.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) computer (b) civil (c) chemical (d) biomedical
5. 5.True or false: a movable pulley rises with the load. (a) False (b) True
6. 6.⚖️ Which class of lever is a pair of tweezers? (a) class 2 (b) class 3 (c) class 1
7. 7.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
8. 8.True or false: a seesaw is a class 2 lever (load in the middle). (a) True (b) False
9. 9.🏋️ A smooth ramp is 18 m long and rises 3 m. What effort pushes a 3300 N box up it, in newtons? (ideal ramp, no friction)
10. 10.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) muscular force (c) gravity (d) magnetic force
11. 11.🧑‍🔧 Which kind of engineer designs satellites? (a) civil (b) biomedical (c) aerospace (d) chemical
12. 12.🏋️ A force of 100 N pushes a cart 1 m along the floor. How much work is done, in joules?
13. 13.🔺 One side of a straw bridge is a row of 5 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
14. 14.🔄 Which design-process step is it to dream up possible fixes? (a) Ask (b) Improve (c) Imagine (d) Create
15. 15.True or false: a fixed pulley makes you pull 2× rope. (a) True (b) False
16. 16.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
17. 17.⚙️ Which simple machine is a bottle cap? (a) wedge (b) screw (c) lever (d) inclined plane
18. 18.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
19. 19.Which of these is caused by muscular force? (a) a rolling ball slows (b) pedalling a cycle (c) rain falls to the ground (d) brakes stop a bicycle
20. 20.Which of these happens in the Ask step? (a) redesign after testing (b) define the problem (c) build the model (d) brainstorm many ideas
21. 21.🔢 To follow the engineering design process, which comes first: “Plan” or “Ask”? (a) Plan (b) Ask
22. 22.🧑‍🔧 Which kind of engineer designs aeroplane wings? (a) computer (b) civil (c) aerospace (d) mechanical
23. 23.True or false: a box pushed on carpet gives more friction. (a) False (b) True
24. 24.🏋️ A 5 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
25. 25.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
26. 26.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a constraint (b) a criterion
27. 27.Which of these is made by engineers? (a) a banyan tree (b) a river (c) a coral reef (d) a bicycle
28. 28.🔄 What is the FIRST step of the engineering design process? (a) Ask (b) Improve (c) Create (d) Test
29. 29.🌉 Which bridge type can cross the widest gap in one span? (a) arch bridge (b) beam bridge (c) log bridge (d) suspension bridge
30. 30.Which job does a civil engineer do? (a) builds hospital scanners (b) designs satellites (c) wires a new building (d) plans a dam
31. 31.⚖️ A lever bar balances. The load is 400 N at 20 cm from the fulcrum. The effort is 100 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
32. 32.🤝 In a design team, who cuts and joins parts? (a) team leader (b) builder (c) materials manager (d) tester
33. 33.💪 Which force is at work: shoes grip the floor? (a) gravity (b) friction (c) magnetic force (d) muscular force
34. 34.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) chemical (b) biomedical (c) mechanical (d) civil
35. 35.🛞 More or less friction: a wheel on ball bearings? (a) more friction (b) less friction
36. 36.🛞 More or less friction: a wet tiled floor? (a) less friction (b) more friction
37. 37.True or false: “pushes out on its ends” is an arch bridge. (a) False (b) True
38. 38.💪 Which force is at work: squeezing a lemon? (a) gravity (b) magnetic force (c) friction (d) muscular force
39. 39.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
40. 40.🔍 Which is the odd one out? (a) a chisel (b) a well winch handle (c) a steering wheel (d) a round doorknob

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