Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 239 · 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.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
2. 2.🪢 Tension or compression: a swing chain? (a) compression (b) tension
3. 3.📐 A beam is 680 cm long. How long is it in metres? =
4. 4.⚖️ A lever bar balances. The load is 80 N at ? cm from the fulcrum. The effort is 120 N at 20 cm from the fulcrum on the other side. What is the missing distance in centimetres?
5. 5.True or false: a banyan tree is made by engineers. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) run while holding tools (b) cut away from your body (c) use a cracked tool (d) play near a moving drill
7. 7.⚙️ Most simple machines make work easier by letting us … (a) make new energy (b) use a smaller force (c) stop all friction (d) switch off gravity
8. 8.🏋️ A 14 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
9. 9.♻️ Is flowing river water a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
10. 10.True or false: a water tank needs a waterproof material. (a) False (b) True
11. 11.Which of these needs an electrical conductor? (a) a roof sheet (b) a skipping rope (c) a boat hull (d) the core of a wire
12. 12.True or false: to dream up possible fixes is the Imagine step. (a) True (b) False
13. 13.🧑‍🔧 Which kind of engineer runs a fertiliser plant? (a) computer (b) mechanical (c) civil (d) chemical
14. 14.🧑‍🔧 Which kind of engineer builds a website? (a) computer (b) aerospace (c) chemical (d) mechanical
15. 15.📐 How many metres are in 1 kilometre? (a) 100 (b) 10 (c) 1000 (d) 10000
16. 16.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 4 cm long in the drawing. How long is the real car, in centimetres?
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
18. 18.🔄 What is the FIRST step of the engineering design process? (a) Create (b) Improve (c) Ask (d) Test
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 310 g. Which design was the weakest? (a) design C (b) design A (c) design B
20. 20.True or false: closing a drawer is a pull. (a) False (b) True
21. 21.🏋️ Work is done when a force moves something … (a) only upwards (b) very slowly (c) through a distance (d) without moving it
22. 22.True or false: a claw hammer on a nail is a pulley. (a) True (b) False
23. 23.True or false: a fixed pulley hangs on the rope loop. (a) True (b) False
24. 24.📐 Why do engineers use scale drawings? (a) big things fit on paper (b) to make them pretty (c) to hide sizes (d) to save ink only
25. 25.Which of these is in compression (pushed)? (a) a tow rope on a car (b) a table leg (c) a hanging lamp chain (d) a stretched rubber band
26. 26.True or false: a road up a hill is an inclined plane. (a) True (b) False
27. 27.Which of these happens in the Ask step? (a) measure its performance (b) redesign after testing (c) think of wild ideas (d) find the limits
28. 28.Which of these is reduce (use less)? (a) reuse gift paper (b) buy less packaging (c) refill a water bottle (d) melt glass into new jars
29. 29.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
30. 30.Which of these is found in nature? (a) a satellite (b) a river (c) a dam (d) a water filter
31. 31.♻️ Reduce, reuse or recycle: print on both sides? (a) recycle (b) reuse (c) reduce
32. 32.🪝 A pulley system has 4 rope sections holding up the load. To lift the load by 1 m, how many metres of rope must you pull?
33. 33.♻️ A school bench is made from 150 recycled plastic bottles. How many benches can be made from 300 bottles?
34. 34.🪝 A pulley system lifts a 1120 N load with an effort of 280 N. What is its mechanical advantage (MA)?
35. 35.⚖️ Which class of lever is a wheelbarrow? (a) class 1 (b) class 2 (c) class 3
36. 36.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
37. 37.🛠️ People need to cross a wide river. Which invention helps? (a) a solar panel (b) a bridge (c) a fridge (d) a tunnel
38. 38.True or false: to hide a mistake is poor teamwork. (a) False (b) True
39. 39.🏋️ A smooth ramp is 18 m long and rises 3 m. What effort pushes a 5100 N box up it, in newtons? (ideal ramp, no friction)
40. 40.⚖️ Along a straight bar, measured from the left end, the effort is at 60 cm, the fulcrum at 40 cm and the load at 30 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1

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