Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 420 · 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 material is good in tension but useless in compression? (a) a stone (b) a rope (c) a concrete block (d) a brick
2. 2.⚖️ Turning effect = force × … (a) colour of bar (b) time taken (c) mass of fulcrum (d) distance from fulcrum
3. 3.True or false: to cut a wooden plank, use a saw. (a) True (b) False
4. 4.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they look nice (d) they are cheap
5. 5.Which of these needs a transparent material? (a) a spectacle lens (b) a tea flask lining (c) a boat hull (d) an umbrella cover
6. 6.Which of these is caused by gravity? (a) shoes grip the floor (b) a compass needle turns (c) a river flows downhill (d) a fridge magnet sticks
7. 7.🧑‍🔧 Which kind of engineer designs power lines? (a) civil (b) electrical (c) mechanical (d) aerospace
8. 8.🛞 More or less friction: a rough doormat? (a) less friction (b) more friction
9. 9.🪢 Tension or compression: a suspension cable? (a) compression (b) tension
10. 10.🏋️ A smooth ramp is 15 m long and rises 3 m. What effort pushes a 2000 N box up it, in newtons? (ideal ramp, no friction)
11. 11.📐 A beam is 950 cm long. How long is it in metres? =
12. 12.🪢 Tension or compression: a tow rope on a car? (a) tension (b) compression
13. 13.🦺 What protects your eyes when sawing or drilling? (a) nothing (b) a cap (c) sunglasses (d) safety goggles
14. 14.🤝 Why do engineers work in teams? (a) to work alone (b) many skills and ideas (c) to argue more (d) to finish nothing
15. 15.🌉 Which bridge type: “good for short gaps”? (a) beam bridge (b) suspension bridge (c) arch bridge
16. 16.📐 A beam is 170 cm long. How long is it in metres? =
17. 17.🔍 Which is the odd one out? (a) put tools back after use (b) clamp wood before sawing (c) wear safety goggles (d) leave tools on the floor
18. 18.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) an early test model (d) the final product
19. 19.True or false: a bridge helps people cross a wide river. (a) False (b) True
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 260 g and design C held 210 g. Which design was the strongest? (a) design C (b) design A (c) design B
21. 21.🏋️ A longer ramp to the same height needs … (a) less effort (b) no effort (c) the same effort (d) more effort
22. 22.🌉 A beam bridge is 315 m long. Piers split it into equal spans of 35 m. How many spans are there?
23. 23.Which of these is found in nature? (a) a dam (b) a bridge (c) a river (d) a mobile phone
24. 24.🪝 A wheel and axle is a big wheel fixed to … (a) a loose rope (b) a smaller rod (axle) (c) a sharp wedge (d) a flat ramp
25. 25.🔢 To follow the engineering design process, which comes first: “Improve” or “Create”? (a) Create (b) Improve
26. 26.📐 A beam is 430 cm long. How long is it in metres? =
27. 27.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
28. 28.Which of these is reuse (use again)? (a) turn plastic into tiles (b) buy less packaging (c) plant in old tyres (d) melt glass into new jars
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
30. 30.🧑‍🔧 Which kind of engineer plans a power grid? (a) electrical (b) aerospace (c) mechanical (d) biomedical
31. 31.🪝 What does a single fixed pulley change? (a) gravity (b) the direction of pull (c) the colour of rope (d) the size of the load
32. 32.⚖️ A lever bar balances. The load is ? N at 20 cm from the fulcrum. The effort is 140 N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
33. 33.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 8 N, a carpet 9 N, ice 4 N, a glass sheet 7 N. Which surface gave the most friction? (a) a carpet (b) ice (c) a wooden plank (d) a glass sheet
34. 34.♻️ A family used to throw away 4 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 10 weeks?
35. 35.🛞 More or less friction: skating on ice? (a) less friction (b) more friction
36. 36.🏋️ Pushing a crate 10 m took 200 J of work. What force was used, in newtons?
37. 37.🪢 Tension is a force that … (a) pushes or squeezes (b) heats things (c) pulls or stretches (d) turns things
38. 38.Which of these needs a waterproof material? (a) a plug pin (b) a boat hull (c) a yoga mat (d) a skipping rope
39. 39.🤝 In a design team, who cuts and joins parts? (a) materials manager (b) builder (c) team leader (d) tester
40. 40.🏋️ An 8 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?

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