Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 386 · 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, what comes right after “Create”? (a) Plan (b) Imagine (c) Improve (d) Test
2. 2.🤝 In a design team, who cuts and joins parts? (a) recorder (b) builder (c) team leader (d) materials manager
3. 3.🔺 Why can an arch carry heavy loads? (a) it is very light (b) it works in compression (c) it bends easily (d) it is hollow
4. 4.🪝 A winch has a wheel of radius 21 cm and an axle of radius 3 cm. What effort on the wheel lifts a 1050 N bucket on the axle, in newtons? (ideal)
5. 5.True or false: “use at most 20 straws” is a constraint (a limit). (a) False (b) True
6. 6.True or false: a fishing rod is a class 3 lever (effort in the middle). (a) True (b) False
7. 7.Which of these is a wheel and axle? (a) a seesaw (b) a nut and bolt (c) a water tap handle (d) a knife edge
8. 8.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
9. 9.🛞 More or less friction: a smooth steel slide? (a) less friction (b) more friction
10. 10.True or false: a solar panel helps people cross a wide river. (a) True (b) False
11. 11.🤝 Is it good or poor teamwork to do all the work alone? (a) poor teamwork (b) good teamwork
12. 12.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 1 corner-to-corner brace. Is it rigid or wobbly? (a) wobbly (b) rigid
13. 13.Which need does a microscope meet? (a) store water for summer (b) reach a top floor fast (c) cross a wide river (d) see very tiny things
14. 14.True or false: a civil engineer designs a paint factory. (a) False (b) True
15. 15.⚙️ Which simple machine is a road up a hill? (a) wheel and axle (b) wedge (c) lever (d) inclined plane
16. 16.True or false: a spectacle lens needs a transparent material. (a) True (b) False
17. 17.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 4 N, a wooden plank 5 N, sandpaper 7 N, ice 2 N. How many newtons more were needed on sandpaper than on ice?
18. 18.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 1 (b) class 2 (c) class 3
19. 19.🛞 More or less friction: oil on a squeaky hinge? (a) less friction (b) more friction
20. 20.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 7 N, sandpaper 8 N, a glass sheet 2 N, a wooden plank 3 N. How many newtons more were needed on sandpaper than on a glass sheet?
21. 21.⚖️ Which class of lever is a pair of pliers? (a) class 2 (b) class 3 (c) class 1
22. 22.Which of these uses triangles? (a) an electric pylon (b) a shelf on two brackets (c) a round palace roof (d) a plank over a drain
23. 23.Which of these uses an arch? (a) an old stone bridge (b) a plank over a drain (c) a slab over a canal (d) a shelf on two brackets
24. 24.True or false: a box pushed on carpet gives less friction. (a) True (b) False
25. 25.Which of these is found in nature? (a) a railway track (b) a lift (c) a dam (d) a waterfall
26. 26.Which of these uses a beam? (a) a bicycle frame (b) a shelf on two brackets (c) a round palace roof (d) an old stone bridge
27. 27.♻️ Is natural gas a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
28. 28.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) civil (b) biomedical (c) aerospace (d) electrical
29. 29.True or false: a tyre with deep treads gives less friction. (a) False (b) True
30. 30.True or false: an electrical engineer designs power lines. (a) True (b) False
31. 31.Which of these needs an electrical conductor? (a) a tea flask lining (b) a water tank (c) a switch contact (d) a magnifier lens
32. 32.🏋️ A 9 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
33. 33.Which job is a saw for? (a) cut a wooden plank (b) measure a long length (c) drive in a nail (d) turn a screw
34. 34.Which need does a bridge meet? (a) make power from sunlight (b) cross a wide river (c) make water safe to drink (d) reach a top floor fast
35. 35.Which of these is a pulley? (a) a knife edge (b) a wheelchair ramp (c) a steering wheel (d) a window blind cord
36. 36.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
37. 37.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
38. 38.True or false: an umbrella cover needs a flexible material. (a) True (b) False
39. 39.🔢 To follow the engineering design process, which is the FIRST step? (a) Create (b) Imagine (c) Plan (d) Ask
40. 40.🛞 Is friction helpful or a problem here: striking a matchstick? (a) helpful (b) a problem

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