Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 835 · 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.🔢 To follow the engineering design process, which comes first: “Imagine” or “Ask”? (a) Imagine (b) Ask
2. 2.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
3. 3.🤝 In a design team, who checks the goals are met? (a) materials manager (b) tester (c) team leader (d) builder
4. 4.🤝 A teammate’s idea seems odd. What should you do first? (a) laugh at it (b) ignore it (c) listen and ask why (d) walk away
5. 5.🔺 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) rigid (b) wobbly
6. 6.🏋️ Mechanical advantage (MA) = … (a) effort ÷ load (b) load × effort (c) load + effort (d) load ÷ effort
7. 7.Which of these happens in the Plan step? (a) think of wild ideas (b) make it better, retest (c) draw a labelled diagram (d) ask who will use it
8. 8.🏋️ Pushing a crate 6 m took 2220 J of work. What force was used, in newtons?
9. 9.Which of these is in tension (pulled)? (a) a temple column (b) a swing chain (c) a stone in an arch (d) a table leg
10. 10.🪢 Tension or compression: a swing chain? (a) tension (b) compression
11. 11.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
12. 12.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.💪 A cart is pulled to the right with 30 N and to the left with 45 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
14. 14.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 50 cm and the load at 40 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
15. 15.📐 On a plan, 1 cm stands for 10 m. A wall is 17 cm long on the plan. How long is the real wall, in metres?
16. 16.True or false: an igloo uses a dome. (a) False (b) True
17. 17.💪 Two children push a box to the right, one with 35 N and the other with 100 N. What is the net (total) force on the box, in newtons?
18. 18.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
19. 19.🏋️ A 12 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
20. 20.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
21. 21.🛞 How can we reduce friction in a machine? (a) make parts rough (b) add sand (c) oil the moving parts (d) press parts harder
22. 22.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) hanging outside (d) on the very top
23. 23.📐 How many centimetres are in 1 metre? (a) 100 (b) 60 (c) 10 (d) 1000
24. 24.True or false: a skipping rope needs a transparent material. (a) True (b) False
25. 25.Which of these is a lever? (a) a seesaw (b) a well-bucket rope wheel (c) a window blind cord (d) a bottle cap
26. 26.Which job is a screwdriver for? (a) drive in a nail (b) measure an angle (c) measure a long length (d) turn a screw
27. 27.🔍 Which is the odd one out? (a) roll at least 2 metres (b) carry 10 coins (c) be under 30 cm tall (d) hold up 500 g
28. 28.True or false: a suspension cable is in compression (pushed). (a) True (b) False
29. 29.🏋️ A 13 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
30. 30.What does the materials manager do? (a) keeps the team on track (b) writes down results (c) keeps the design notes (d) tracks what is used up
31. 31.🏋️ Pushing a crate 1 m took 260 J of work. What force was used, in newtons?
32. 32.True or false: a boat hull needs an electrical conductor. (a) True (b) False
33. 33.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) computer (b) chemical (c) biomedical (d) civil
34. 34.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
35. 35.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🪝 A pulley system has 3 rope sections holding up the load. To lift the load by 8 m, how many metres of rope must you pull?
37. 37.True or false: to cut away from your body is not safe. (a) True (b) False
38. 38.🦺 In the workshop, is it safe to put tools back after use? (a) not safe (b) safe
39. 39.♻️ A school bench is made from 400 recycled plastic bottles. How many benches can be made from 1200 bottles?
40. 40.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True

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