Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 550 · 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.🛞 More or less friction: a wheel on ball bearings? (a) more friction (b) less friction
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
3. 3.🔍 Which is the odd one out? (a) a suspension cable (b) a tall bridge tower (c) a hanging lamp chain (d) a tow rope on a car
4. 4.🧪 A paper bridge was tested three times. It held 370 g, 280 g and 310 g. What is the mean (average) load it held, in grams?
5. 5.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 210 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
6. 6.🔍 Which is the odd one out? (a) a cloud (b) a river (c) a rainbow (d) a bridge
7. 7.True or false: to cut towards your hand is not safe. (a) True (b) False
8. 8.🤝 Is it good or poor teamwork to blame others for faults? (a) poor teamwork (b) good teamwork
9. 9.True or false: to run while holding tools is not safe. (a) False (b) True
10. 10.🧪 A paper bridge was tested three times. It held 180 g, 70 g and 260 g. What is the mean (average) load it held, in grams?
11. 11.True or false: pulling up your socks is a push. (a) False (b) True
12. 12.True or false: an aerospace engineer wires a new building. (a) False (b) True
13. 13.📐 On a plan, 1 cm stands for 2 m. A real bridge is 22 m long. How long is it on the plan, in centimetres?
14. 14.⚙️ Which simple machine is a bottle cap? (a) wheel and axle (b) screw (c) lever (d) inclined plane
15. 15.True or false: chalk on a gym bar gives more friction. (a) False (b) True
16. 16.🤝 Why do engineers work in teams? (a) many skills and ideas (b) to work alone (c) to finish nothing (d) to argue more
17. 17.⚙️ A wedge is … (a) a bar on a pivot (b) two ramps back to back (c) a rope on a wheel (d) a wheel on a rod
18. 18.🧪 A paper bridge was tested three times. It held 340 g, 300 g and 260 g. What is the mean (average) load it held, in grams?
19. 19.🔧 Which tool would you use to measure a long length? (a) sandpaper (b) a tape measure (c) a spirit level (d) a saw
20. 20.True or false: a rough doormat gives more friction. (a) True (b) False
21. 21.Which of these is a wedge? (a) a seesaw (b) a bottle opener (c) a screw jack (d) an axe blade
22. 22.Which of these is a wedge? (a) a steering wheel (b) a seesaw (c) the tip of a nail (d) a crowbar
23. 23.🌉 A beam bridge is 160 m long. Piers split it into equal spans of 20 m. How many spans are there?
24. 24.🛠️ Is a cloud made by engineers or found in nature? (a) made by engineers (b) found in nature
25. 25.🏋️ A longer ramp to the same height needs … (a) less effort (b) more effort (c) the same effort (d) no effort
26. 26.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
27. 27.True or false: to laugh at ideas is good teamwork. (a) True (b) False
28. 28.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
29. 29.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 100 g. How many more grams did it hold?
30. 30.🔍 Which is the odd one out? (a) a bottle opener (b) a well winch handle (c) a round doorknob (d) a steering wheel
31. 31.🏋️ 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?
32. 32.Which of these is made by engineers? (a) a seashell (b) a lift (c) a cloud (d) a waterfall
33. 33.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
34. 34.🔺 Which strong shape does an igloo use? (a) arch (b) beam (c) triangle (d) dome
35. 35.⚖️ A lever balances when … (a) the bar is short (b) the fulcrum moves (c) turning effects match (d) both weights are equal
36. 36.⚖️ A lever bar balances. The load is 40 N at ? cm from the fulcrum. The effort is 40 N at 40 cm from the fulcrum on the other side. What is the missing distance in centimetres?
37. 37.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 4 N, a wooden plank 7 N, a carpet 8 N, sandpaper 12 N. How many newtons more were needed on sandpaper than on a glass sheet?
38. 38.Which need does a bridge meet? (a) make water safe to drink (b) go through a mountain (c) see very tiny things (d) cross a wide river
39. 39.🏋️ A smooth ramp is 5 m long and rises 1 m. What effort pushes a 750 N box up it, in newtons? (ideal ramp, no friction)
40. 40.🌉 A beam bridge is 75 m long. Piers split it into equal spans of 25 m. How many spans are there?

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