Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 536 · 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.Which of these is made by engineers? (a) a rainbow (b) a mountain (c) a river (d) a water filter
2. 2.True or false: to grip and bend wire, use pliers. (a) False (b) True
3. 3.True or false: to record every result is good testing. (a) False (b) True
4. 4.True or false: ocean wave energy is a renewable energy source. (a) True (b) False
5. 5.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) a mountain (b) a dam (c) a seashell (d) a rainbow
7. 7.True or false: to hide a mistake is good teamwork. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) a tyre with deep treads (b) a wheel on ball bearings (c) a smooth steel slide (d) oil on a squeaky hinge
9. 9.🏋️ A force of 430 N did 1290 J of work. How many metres did the object move?
10. 10.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 30 cm and the load at 10 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
11. 11.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they stop shaking (d) they look nice
12. 12.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) civil (b) aerospace (c) biomedical (d) electrical
13. 13.🔺 How do engineers stop a square frame from wobbling? (a) make it bigger (b) paint it (c) take off a side (d) add a diagonal brace
14. 14.⚖️ Going along a lever from one end to the other, the order is: fulcrum, effort, load. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
15. 15.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
16. 16.🔺 A frame shaped like a triangle is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
17. 17.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
18. 18.True or false: to repeat each test is good testing. (a) False (b) True
19. 19.📋 For a model bridge challenge, is “roll at least 2 metres” a constraint or a criterion? (a) a constraint (b) a criterion
20. 20.🔍 Which is the odd one out? (a) the tip of a nail (b) a truck loading ramp (c) a wheelchair ramp (d) a playground slide
21. 21.🛞 How can we reduce friction in a machine? (a) make parts rough (b) oil the moving parts (c) press parts harder (d) add sand
22. 22.♻️ A sustainable design … (a) protects the future (b) wastes water (c) uses the most plastic (d) lasts one day
23. 23.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “build it with straws”? (a) strengthen the weak part (b) build it with straws
24. 24.🏋️ A smooth ramp is 18 m long and rises 3 m. What effort pushes a 3900 N box up it, in newtons? (ideal ramp, no friction)
25. 25.🔺 Which strong shape does a curved stone doorway use? (a) beam (b) triangle (c) arch (d) dome
26. 26.🛠️ People need to cross a wide river. Which invention helps? (a) a train (b) a bridge (c) a lift (d) a dam
27. 27.🔧 Which tool would you use to cut a wooden plank? (a) a spanner (b) sandpaper (c) a saw (d) a tape measure
28. 28.🛞 Is friction helpful or a problem here: gripping a cricket bat? (a) helpful (b) a problem
29. 29.🏋️ Mechanical advantage (MA) = … (a) load × effort (b) load + effort (c) load ÷ effort (d) effort ÷ load
30. 30.🛠️ People need to keep food fresh longer. Which invention helps? (a) a water filter (b) a train (c) a microscope (d) a fridge
31. 31.⚖️ Which class of lever is a pair of pliers? (a) class 2 (b) class 3 (c) class 1
32. 32.🔍 Which is the odd one out? (a) be under 30 cm tall (b) fit on a school desk (c) use only paper and tape (d) hold up 500 g
33. 33.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 60 cm and the load at 70 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
34. 34.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
35. 35.♻️ Is natural gas a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
36. 36.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
37. 37.🛞 Is friction helpful or a problem here: writing with a pencil? (a) a problem (b) helpful
38. 38.♻️ Reduce, reuse or recycle: melt glass into new jars? (a) reduce (b) reuse (c) recycle
39. 39.Which of these uses a dome? (a) a truss bridge side (b) a curved stone doorway (c) an old stone bridge (d) a round palace roof
40. 40.🔍 Which is the odd one out? (a) lift a cup of water (b) use only paper and tape (c) float for 1 minute (d) hold up 500 g

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