Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 895 · 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 teammate’s idea seems odd. What should you do first? (a) walk away (b) ignore it (c) laugh at it (d) listen and ask why
2. 2.♻️ Which is the BEST order to think about waste? (a) reduce, reuse, recycle (b) burn, bury, forget (c) reuse, recycle, reduce (d) recycle, reuse, reduce
3. 3.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 34 cm tall. Is it within the constraint? (a) No (b) Yes
4. 4.True or false: “a log across a stream” is an arch bridge. (a) False (b) True
5. 5.🌉 In a suspension bridge, the main cables are in … (a) no force (b) friction (c) tension (d) compression
6. 6.📐 Why do engineers use scale drawings? (a) to save ink only (b) to hide sizes (c) to make them pretty (d) big things fit on paper
7. 7.⚙️ A wedge is … (a) a wheel on a rod (b) a rope on a wheel (c) two ramps back to back (d) a bar on a pivot
8. 8.Which of these happens in the Test step? (a) find the limits (b) make a prototype (c) check it against goals (d) think of wild ideas
9. 9.True or false: a window pane needs a transparent material. (a) True (b) False
10. 10.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 30 cm and the load at 60 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
11. 11.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 10 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
12. 12.⚙️ Which simple machine is a bottle opener? (a) wedge (b) lever (c) wheel and axle (d) inclined plane
13. 13.🛠️ People need to see very tiny things. Which invention helps? (a) a tunnel (b) a lift (c) a microscope (d) a water filter
14. 14.📋 A constraint is … (a) a goal for success (b) a kind of glue (c) a limit you must keep to (d) a final test
15. 15.📐 On a plan, 1 cm stands for 5 m. A wall is 7 cm long on the plan. How long is the real wall, in metres?
16. 16.True or false: “cables tied down at ends” is a suspension bridge. (a) True (b) False
17. 17.🤝 A team of 3 shares 12 equal jobs fairly. Each job takes 10 minutes. How many minutes does each person work?
18. 18.True or false: an aerospace engineer designs aeroplane wings. (a) False (b) True
19. 19.🌉 Which bridge type: “a log across a stream”? (a) suspension bridge (b) arch bridge (c) beam bridge
20. 20.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a glass sheet 2 N, a wooden plank 3 N, a carpet 4 N. Which surface gave the most friction? (a) ice (b) a carpet (c) a glass sheet (d) a wooden plank
21. 21.🧪 Why repeat a test three times? (a) the first is wrong (b) to get reliable results (c) to use more paper (d) it looks busy
22. 22.🤝 A team of 3 shares 18 equal jobs fairly. Each job takes 8 minutes. How many minutes does each person work?
23. 23.True or false: a tall bridge tower is in compression (pushed). (a) False (b) True
24. 24.🧪 What is a prototype? (a) the final product (b) a sales poster (c) a broken part (d) an early test model
25. 25.True or false: a civil engineer plans a dam. (a) True (b) False
26. 26.📋 Criterion: the model bridge must hold at least 200 g. In the test it held 50 g. Does it meet the criterion? (a) No (b) Yes
27. 27.Which of these is in tension (pulled)? (a) a brick at a wall base (b) a tug of war rope (c) a stone in an arch (d) a table leg
28. 28.True or false: opening a drawer is a push. (a) True (b) False
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
30. 30.🧪 A paper bridge was tested three times. It held 180 g, 70 g and 260 g. What is the mean (average) load it held, in grams?
31. 31.🏋️ A longer ramp to the same height needs … (a) less effort (b) the same effort (c) no effort (d) more effort
32. 32.🏋️ Pushing a crate 1 m took 330 J of work. What force was used, in newtons?
33. 33.📋 For a model bridge challenge, is “roll at least 2 metres” a constraint or a criterion? (a) a criterion (b) a constraint
34. 34.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 80 N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
35. 35.🔄 Which design-process step is it to try it out? (a) Plan (b) Improve (c) Ask (d) Test
36. 36.🦺 In the workshop, is it safe to play near a moving drill? (a) safe (b) not safe
37. 37.🪝 A pulley system has 4 rope sections holding up the load. To lift the load by 9 m, how many metres of rope must you pull?
38. 38.🔢 To follow the engineering design process, what comes right after “Test”? (a) Improve (b) Ask (c) Create (d) Plan
39. 39.🤝 In a design team, who shares out the jobs? (a) team leader (b) tester (c) builder (d) recorder
40. 40.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) on a thin pole (d) hanging outside

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