Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 423 · 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.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
2. 2.Which of these is reuse (use again)? (a) turn plastic into tiles (b) buy less packaging (c) melt glass into new jars (d) use a jar as a pen stand
3. 3.Which of these is a beam bridge? (a) cables tied down at ends (b) deck hangs from cables (c) tall towers hold cables (d) a flat deck on piers
4. 4.True or false: a tow rope on a car is in compression (pushed). (a) False (b) True
5. 5.What does the recorder do? (a) keeps the team on track (b) shares out the jobs (c) keeps the design notes (d) puts the model together
6. 6.True or false: diesel is a non-renewable energy source. (a) False (b) True
7. 7.🪝 Fixed or movable pulley: which one rises with the load? (a) a fixed pulley (b) a movable pulley
8. 8.🏋️ A 1 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
9. 9.🔧 Which tool would you use to drive in a nail? (a) a spanner (b) a hand drill (c) a hammer (d) pliers
10. 10.🪢 A stage stands on 8 identical legs and each leg is squeezed with 250 N. What is the total load on the stage, in newtons?
11. 11.⚖️ A lever bar balances. The load is ? N at 50 cm from the fulcrum. The effort is 100 N at 90 cm from the fulcrum on the other side. What is the missing force in newtons?
12. 12.⚙️ Which simple machine is a flagpole rope wheel? (a) lever (b) pulley (c) inclined plane (d) wedge
13. 13.🏋️ A smooth ramp is 2 m long and rises 1 m. What effort pushes a 300 N box up it, in newtons? (ideal ramp, no friction)
14. 14.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 80 cm and the load at 0 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
15. 15.Which of these is in tension (pulled)? (a) a squeezed spring (b) a temple column (c) a stone in an arch (d) a tug of war rope
16. 16.Which need does a tunnel meet? (a) go through a mountain (b) keep food fresh longer (c) cross a wide river (d) make power from sunlight
17. 17.🌉 What holds up a long beam bridge in the middle? (a) balloons (b) piers (c) nothing (d) cables only
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
19. 19.Which of these needs an electrical conductor? (a) a hair band (b) an oven glove (c) a tea flask lining (d) a switch contact
20. 20.True or false: to carry scissors closed is not safe. (a) False (b) True
21. 21.🤝 In a design team, who checks the goals are met? (a) tester (b) recorder (c) team leader (d) builder
22. 22.🛠️ Is a lift made by engineers or found in nature? (a) found in nature (b) made by engineers
23. 23.Which of these is made by engineers? (a) a banyan tree (b) a lift (c) a seashell (d) a waterfall
24. 24.True or false: to check a shelf is level, use sandpaper. (a) True (b) False
25. 25.True or false: to hide a mistake is poor teamwork. (a) True (b) False
26. 26.True or false: a fixed pulley stays in one place. (a) True (b) False
27. 27.⚖️ What is the pivot point of a lever called? (a) the load (b) the axle (c) the effort (d) the fulcrum
28. 28.True or false: a movable pulley makes you pull 2× rope. (a) False (b) True
29. 29.🔺 Why can an arch carry heavy loads? (a) it bends easily (b) it is very light (c) it works in compression (d) it is hollow
30. 30.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 200 g. Does it meet the criterion? (a) No (b) Yes
31. 31.🧑‍🔧 Which kind of engineer designs a flyover? (a) chemical (b) aerospace (c) mechanical (d) civil
32. 32.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a criterion (b) a constraint
33. 33.🔄 Which design-process step is it to follow the plan to build? (a) Ask (b) Test (c) Create (d) Plan
34. 34.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
35. 35.Which of these uses triangles? (a) a curved stone doorway (b) a round palace roof (c) a bicycle frame (d) a planetarium roof
36. 36.⚙️ A wedge is … (a) a rope on a wheel (b) two ramps back to back (c) a bar on a pivot (d) a wheel on a rod
37. 37.🔄 What is the FIRST step of the engineering design process? (a) Ask (b) Create (c) Improve (d) Test
38. 38.🤝 A team plans for 15 minutes, builds for 55 minutes and then tests for 30 minutes, one after another. How many minutes is that in all?
39. 39.Which of these uses a beam? (a) a planetarium roof (b) a shelf on two brackets (c) a curved stone doorway (d) a truss bridge side
40. 40.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 4 N, a wooden plank 6 N, sandpaper 7 N, ice 3 N. How many newtons more were needed on sandpaper than on ice?

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