Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 244 · 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.True or false: a computer engineer builds a website. (a) False (b) True
2. 2.True or false: to wear safety goggles is safe. (a) False (b) True
3. 3.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a constraint (b) a criterion
4. 4.📋 Criterion: the model bridge must hold at least 900 g. In the test it held 750 g. Does it meet the criterion? (a) No (b) Yes
5. 5.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
6. 6.♻️ Which is the BEST order to think about waste? (a) reduce, reuse, recycle (b) reuse, recycle, reduce (c) recycle, reuse, reduce (d) burn, bury, forget
7. 7.⚖️ Which class of lever is a pair of tweezers? (a) class 1 (b) class 3 (c) class 2
8. 8.🔢 To follow the engineering design process, which is the LAST step? (a) Plan (b) Create (c) Ask (d) Improve
9. 9.True or false: a cloud is found in nature. (a) False (b) True
10. 10.True or false: “keep ice for 1 hour” is a criterion (a goal). (a) False (b) True
11. 11.🏋️ A smooth ramp is 15 m long and rises 3 m. What effort pushes a 2750 N box up it, in newtons? (ideal ramp, no friction)
12. 12.♻️ Reduce, reuse or recycle: turn plastic into tiles? (a) recycle (b) reduce (c) reuse
13. 13.Which of these is in compression (pushed)? (a) a squeezed spring (b) a tug of war rope (c) a crane lifting cable (d) a tow rope on a car
14. 14.True or false: a slab over a canal uses a beam. (a) False (b) True
15. 15.🤝 In a design team, who tracks what is used up? (a) materials manager (b) tester (c) builder (d) team leader
16. 16.🪢 A stage stands on 5 identical legs and each leg is squeezed with 550 N. What is the total load on the stage, in newtons?
17. 17.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
18. 18.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 4 N, a glass sheet 6 N, a wooden plank 10 N, a carpet 13 N. Which surface gave the most friction? (a) ice (b) a wooden plank (c) a carpet (d) a glass sheet
19. 19.True or false: a nutcracker is a class 3 lever (effort in the middle). (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) lift a cup of water (b) keep ice for 1 hour (c) hold up 500 g (d) use only paper and tape
21. 21.🪝 A wheel and axle is a big wheel fixed to … (a) a smaller rod (axle) (b) a sharp wedge (c) a flat ramp (d) a loose rope
22. 22.🔍 Which is the odd one out? (a) an axe blade (b) a door stopper (c) a road up a hill (d) a knife edge
23. 23.True or false: to run while holding tools is not safe. (a) True (b) False
24. 24.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a criterion (b) a constraint
25. 25.📐 Why do engineers use scale drawings? (a) to hide sizes (b) to save ink only (c) big things fit on paper (d) to make them pretty
26. 26.True or false: to help a stuck teammate is good teamwork. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) test it only once (b) guess, do not measure (c) use a new load each time (d) repeat each test
28. 28.🪢 Tension or compression: a tug of war rope? (a) tension (b) compression
29. 29.Which of these is an arch bridge? (a) a log across a stream (b) deck hangs from cables (c) the simplest bridge (d) a curve under the deck
30. 30.🔍 Which is the odd one out? (a) a bottle opener (b) the tip of a nail (c) a crowbar (d) a nutcracker
31. 31.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 1 N, a wooden plank 4 N, a carpet 8 N, sandpaper 9 N. Which surface gave the most friction? (a) a glass sheet (b) a carpet (c) sandpaper (d) a wooden plank
32. 32.True or false: “a flat deck on piers” is a beam bridge. (a) False (b) True
33. 33.🧪 A paper bridge was tested three times. It held 350 g, 340 g and 330 g. What is the mean (average) load it held, in grams?
34. 34.⚙️ Which simple machine is a knife edge? (a) wedge (b) pulley (c) lever (d) wheel and axle
35. 35.♻️ Reduce, reuse or recycle: print on both sides? (a) reduce (b) reuse (c) recycle
36. 36.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 8 N, a carpet 11 N, sandpaper 12 N, ice 4 N. Which surface gave the most friction? (a) a wooden plank (b) sandpaper (c) ice (d) a carpet
37. 37.🔧 Which tool would you use to drive in a nail? (a) a hammer (b) sandpaper (c) a screwdriver (d) a protractor
38. 38.True or false: a stone in an arch is in compression (pushed). (a) False (b) True
39. 39.Which job does a chemical engineer do? (a) lays out a highway (b) keeps data safe online (c) designs knee implants (d) makes medicines in bulk
40. 40.True or false: to agree before changing is poor teamwork. (a) True (b) False

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