Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 298 · 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 class of lever is a bottle opener? (a) class 3 (b) class 1 (c) class 2
2. 2.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
3. 3.🏋️ A smooth ramp is 12 m long and rises 3 m. What effort pushes a 3600 N box up it, in newtons? (ideal ramp, no friction)
4. 4.♻️ A school bench is made from 100 recycled plastic bottles. How many benches can be made from 500 bottles?
5. 5.📐 On a plan, 1 cm stands for 5 m. A real bridge is 60 m long. How long is it on the plan, in centimetres?
6. 6.Which job is a hand drill for? (a) cut a wooden plank (b) check a shelf is level (c) smooth a rough edge (d) make a hole in wood
7. 7.💪 In a tug of war, one team pulls left with 10 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
8. 8.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
9. 9.🔢 To follow the engineering design process, which is the LAST step? (a) Create (b) Test (c) Ask (d) Improve
10. 10.🔍 Which is the odd one out? (a) a knife edge (b) a door stopper (c) an axe blade (d) a claw hammer on a nail
11. 11.♻️ A family used to throw away 9 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 10 weeks?
12. 12.True or false: to tighten a nut, use a spanner. (a) True (b) False
13. 13.🔺 A flat frame has 6 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
14. 14.True or false: “a flat deck on piers” is a beam bridge. (a) True (b) False
15. 15.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) raising heavy tanks high (c) leaving out steel bars (d) stacking loose bricks
16. 16.⚖️ Which class of lever is a nutcracker? (a) class 3 (b) class 2 (c) class 1
17. 17.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) why is the sky blue? (b) what is for lunch? (c) who won the match? (d) how can we build it?
18. 18.True or false: to fix the weak part is the Improve step. (a) True (b) False
19. 19.True or false: an aerospace engineer refines crude oil. (a) False (b) True
20. 20.♻️ Reduce, reuse or recycle: melt cans into new cans? (a) reduce (b) recycle (c) reuse
21. 21.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
22. 22.True or false: kicking a football is a pull. (a) True (b) False
23. 23.🤝 Is it good or poor teamwork to share the work fairly? (a) good teamwork (b) poor teamwork
24. 24.🪝 A load of 630 N hangs from a pulley system in which 3 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
25. 25.True or false: “use only paper and tape” is a criterion (a goal). (a) False (b) True
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
27. 27.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 200 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
28. 28.🤝 A team plans for 25 minutes, builds for 60 minutes and then tests for 20 minutes, one after another. How many minutes is that in all?
29. 29.True or false: a fishing rod is a class 3 lever (effort in the middle). (a) False (b) True
30. 30.True or false: to grip and bend wire, use a screwdriver. (a) False (b) True
31. 31.Which of these happens in the Imagine step? (a) build the model (b) ask who will use it (c) list the materials (d) brainstorm many ideas
32. 32.🔺 One side of a straw bridge is a row of 13 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
33. 33.True or false: flowing river water is a renewable energy source. (a) False (b) True
34. 34.Which of these is a beam bridge? (a) cables tied down at ends (b) pushes out on its ends (c) tall towers hold cables (d) good for short gaps
35. 35.⚖️ What is the pivot point of a lever called? (a) the fulcrum (b) the axle (c) the effort (d) the load
36. 36.⚖️ In a class 3 lever, what is in the middle? (a) the effort (b) the pulley (c) the load (d) the fulcrum
37. 37.🪢 Tension or compression: a table leg? (a) compression (b) tension
38. 38.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) computer (b) aerospace (c) civil (d) chemical
39. 39.True or false: to turn a screw, use a hammer. (a) True (b) False
40. 40.Which job does an aerospace engineer do? (a) refines crude oil (b) designs bicycle gears (c) designs electric motors (d) designs satellites

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