Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 569 · 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.⚖️ A lever bar balances. The load is ? N at 30 cm from the fulcrum. The effort is 120 N at 60 cm from the fulcrum on the other side. What is the missing force in newtons?
2. 2.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) aerospace (b) computer (c) civil (d) chemical
3. 3.Which of these needs an electrical conductor? (a) an umbrella cover (b) a boat hull (c) a water tank (d) a switch contact
4. 4.🛠️ What does an engineer mainly do? (a) sells tickets (b) designs useful solutions (c) grows crops (d) only paints pictures
5. 5.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
6. 6.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) keeping a simple shape (d) making brittle joints
7. 7.True or false: a crane lifting cable is in compression (pushed). (a) False (b) True
8. 8.🪝 A load of 560 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
9. 9.📐 On a plan, 1 cm stands for 2 m. A real bridge is 34 m long. How long is it on the plan, in centimetres?
10. 10.🧑‍🔧 Which kind of engineer designs factory machines? (a) aerospace (b) mechanical (c) biomedical (d) electrical
11. 11.True or false: “use only paper and tape” is a criterion (a goal). (a) True (b) False
12. 12.Which of these is found in nature? (a) a bicycle (b) a bridge (c) a river (d) a satellite
13. 13.📋 Criterion: the model bridge must hold at least 1000 g. In the test it held 850 g. Does it meet the criterion? (a) No (b) Yes
14. 14.⚙️ Which simple machine is a well-bucket rope wheel? (a) pulley (b) screw (c) lever (d) wheel and axle
15. 15.🔍 Which is the odd one out? (a) cut away from your body (b) put tools back after use (c) let adults use hot glue (d) play near a moving drill
16. 16.🔧 Which tool would you use to check a shelf is level? (a) a hammer (b) a saw (c) a spirit level (d) sandpaper
17. 17.True or false: a civil engineer designs a paint factory. (a) True (b) False
18. 18.🪢 A stage stands on 8 identical legs and each leg is squeezed with 400 N. What is the total load on the stage, in newtons?
19. 19.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
20. 20.True or false: biogas from waste is a non-renewable energy source. (a) True (b) False
21. 21.Which of these is found in nature? (a) a coral reef (b) a satellite (c) a bicycle (d) a ceiling fan
22. 22.🔍 Which is the odd one out? (a) a water tap handle (b) a round doorknob (c) a jar lid (d) a well winch handle
23. 23.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
24. 24.True or false: “use at most 20 straws” is a criterion (a goal). (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) a hanging lamp chain (b) a suspension cable (c) a pillar under a roof (d) a crane lifting cable
26. 26.True or false: a truss bridge side uses triangles. (a) True (b) False
27. 27.Which of these is a wheel and axle? (a) a playground slide (b) a chisel (c) a water tap handle (d) a knife edge
28. 28.Which of these uses an arch? (a) a planetarium roof (b) a slab over a canal (c) an old stone bridge (d) an electric pylon
29. 29.🤝 In a design team, who tracks what is used up? (a) recorder (b) tester (c) materials manager (d) team leader
30. 30.True or false: a plug pin needs a heat insulator. (a) False (b) True
31. 31.True or false: a microscope helps people make water safe to drink. (a) True (b) False
32. 32.True or false: a pair of pliers is a class 1 lever (fulcrum in the middle). (a) True (b) False
33. 33.🏋️ A smooth ramp is 6 m long and rises 1 m. What effort pushes a 4800 N box up it, in newtons? (ideal ramp, no friction)
34. 34.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
35. 35.🏋️ Pushing a crate 10 m took 600 J of work. What force was used, in newtons?
36. 36.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 6 N, a wooden plank 9 N, a carpet 12 N, ice 3 N. Which surface gave the most friction? (a) a wooden plank (b) a carpet (c) a glass sheet (d) ice
37. 37.🔺 Which shape keeps its shape best when its corners are pinned? (a) hexagon (b) rectangle (c) triangle (d) square
38. 38.True or false: to use a cracked tool is safe. (a) False (b) True
39. 39.🏋️ A force of 270 N pushes a cart 2 m along the floor. How much work is done, in joules?
40. 40.📐 A beam is 640 cm long. How long is it in metres? =

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