Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 311 · 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.🪢 Tension or compression: a crane lifting cable? (a) compression (b) tension
2. 2.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 7 N, a carpet 10 N, sandpaper 12 N, a glass sheet 4 N. How many newtons more were needed on sandpaper than on a glass sheet?
3. 3.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
4. 4.True or false: a movable pulley only changes direction. (a) True (b) False
5. 5.Which of these is an arch bridge? (a) tall towers hold cables (b) good for short gaps (c) a flat deck on piers (d) stones squeezed together
6. 6.Which job does a chemical engineer do? (a) designs artificial limbs (b) designs electric motors (c) refines crude oil (d) designs hearing aids
7. 7.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) far from the fulcrum (b) on the rock (c) near the fulcrum (d) on the fulcrum
8. 8.True or false: a biomedical engineer designs artificial limbs. (a) True (b) False
9. 9.🦺 In the workshop, is it safe to tie back long hair? (a) safe (b) not safe
10. 10.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
11. 11.True or false: a bridge helps people reach a top floor fast. (a) True (b) False
12. 12.♻️ Reduce, reuse or recycle: print on both sides? (a) recycle (b) reuse (c) reduce
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 of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) adding cross bracing (d) raising heavy tanks high
15. 15.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
16. 16.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) what is for lunch? (b) why is the sky blue? (c) who won the match? (d) how can we build it?
17. 17.🔄 Is the engineering design process done only once? (a) only on Sundays (b) yes, only once (c) only for big jobs (d) no, it repeats
18. 18.♻️ Is coal a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
19. 19.Which of these is recycle (make new things)? (a) give old books away (b) carry a cloth bag (c) switch off unused lights (d) melt glass into new jars
20. 20.🛠️ What does an engineer do before building anything? (a) understands the problem (b) builds at once (c) buys every material (d) paints the model
21. 21.🪢 A stage stands on 8 identical legs and each leg is squeezed with 700 N. What is the total load on the stage, in newtons?
22. 22.🪢 A sign weighing 80 N hangs from 2 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
23. 23.🤝 A team plans for 35 minutes, builds for 25 minutes and then tests for 20 minutes, one after another. How many minutes is that in all?
24. 24.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) load it with coins (b) read the challenge rules
25. 25.🛞 More or less friction: a rough doormat? (a) more friction (b) less friction
26. 26.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 10 N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
27. 27.⚖️ A lever bar balances. The load is 900 N at 20 cm from the fulcrum. The effort is 200 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
28. 28.🏋️ A smooth ramp is 4 m long and rises 2 m. What effort pushes a 500 N box up it, in newtons? (ideal ramp, no friction)
29. 29.🪢 A sign weighing 850 N hangs from 5 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
30. 30.🤝 Is it good or poor teamwork to agree before changing? (a) poor teamwork (b) good teamwork
31. 31.True or false: a movable pulley rises with the load. (a) True (b) False
32. 32.Which of these is made by engineers? (a) a rainbow (b) a mountain (c) a mobile phone (d) a seashell
33. 33.🔍 Which is the odd one out? (a) use a cracked tool (b) put tools back after use (c) touch a hot glue tip (d) leave tools on the floor
34. 34.True or false: wind is a non-renewable energy source. (a) False (b) True
35. 35.♻️ Reduce, reuse or recycle: melt cans into new cans? (a) reuse (b) reduce (c) recycle
36. 36.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) electrical (b) biomedical (c) aerospace (d) civil
37. 37.🤝 Why do engineers work in teams? (a) to work alone (b) to argue more (c) to finish nothing (d) many skills and ideas
38. 38.📐 How many centimetres are in 1 metre? (a) 100 (b) 10 (c) 1000 (d) 60
39. 39.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) civil (b) computer (c) biomedical (d) chemical
40. 40.⚖️ In a class 3 lever, what is in the middle? (a) the pulley (b) the fulcrum (c) the load (d) the effort

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