Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 15 · 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.True or false: a biomedical engineer designs artificial limbs. (a) False (b) True
2. 2.📋 Criterion: the model bridge must hold at least 400 g. In the test it held 350 g. Does it meet the criterion? (a) Yes (b) No
3. 3.Which of these is a screw? (a) a well-bucket rope wheel (b) the tip of a nail (c) a jar lid (d) a seesaw
4. 4.🤝 A team plans for 20 minutes, builds for 35 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
5. 5.🪝 A load of 120 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
6. 6.🤝 Is it good or poor teamwork to listen to every idea? (a) good teamwork (b) poor teamwork
7. 7.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) all of them (d) one
8. 8.Which job is a spanner for? (a) check a shelf is level (b) measure an angle (c) tighten a nut (d) grip and bend wire
9. 9.⚖️ Along a straight bar, measured from the left end, the effort is at 60 cm, the fulcrum at 70 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
10. 10.📐 On a plan, 1 cm stands for 10 m. A real bridge is 130 m long. How long is it on the plan, in centimetres?
11. 11.🤝 A team plans for 55 minutes, builds for 20 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
12. 12.🪝 A winch has a wheel of radius 2 cm and an axle of radius 1 cm. What effort on the wheel lifts a 40 N bucket on the axle, in newtons? (ideal)
13. 13.⚖️ A lever bar balances. The load is 100 N at 40 cm from the fulcrum. The effort is ? N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
14. 14.🪝 A winch has a wheel of radius 5 cm and an axle of radius 1 cm. What effort on the wheel lifts a 700 N bucket on the axle, in newtons? (ideal)
15. 15.Which of these is a beam bridge? (a) tall towers hold cables (b) a curve under the deck (c) the simplest bridge (d) a rope bridge in hills
16. 16.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
17. 17.⚖️ Which class of lever is a beam balance? (a) class 2 (b) class 1 (c) class 3
18. 18.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 7 N, a wooden plank 11 N, sandpaper 12 N, ice 4 N. Which surface gave the least friction? (a) a glass sheet (b) ice (c) a wooden plank (d) sandpaper
19. 19.True or false: a mechanical engineer designs a metro tunnel. (a) True (b) False
20. 20.📐 A beam is 770 cm long. How long is it in metres? =
21. 21.🔧 Which tool would you use to tighten a nut? (a) a spirit level (b) a spanner (c) a tape measure (d) a saw
22. 22.📋 Constraint: the tower must be no taller than 70 cm. The team’s tower is 66 cm tall. Is it within the constraint? (a) No (b) Yes
23. 23.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 6 N, a carpet 7 N, ice 1 N, a glass sheet 3 N. Which surface gave the least friction? (a) a glass sheet (b) ice (c) a wooden plank (d) a carpet
24. 24.🤝 Is it good or poor teamwork to blame others for faults? (a) good teamwork (b) poor teamwork
25. 25.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
26. 26.📐 How many millimetres are in 1 centimetre? (a) 1000 (b) 100 (c) 5 (d) 10
27. 27.🦺 In the workshop, is it safe to wear safety goggles? (a) safe (b) not safe
28. 28.True or false: a mechanical engineer designs a paint factory. (a) True (b) False
29. 29.🌉 Which bridge type: “tall towers hold cables”? (a) suspension bridge (b) beam bridge (c) arch bridge
30. 30.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 8 N, sandpaper 12 N, ice 1 N, a wooden plank 4 N. Which surface gave the least friction? (a) a carpet (b) ice (c) a wooden plank (d) sandpaper
31. 31.💪 A force is a … (a) kind of colour (b) unit of time (c) push or a pull (d) type of sound
32. 32.Which of these is a screw? (a) a flagpole rope wheel (b) a truck loading ramp (c) a well winch handle (d) a nut and bolt
33. 33.♻️ A school bench is made from 500 recycled plastic bottles. How many benches can be made from 5000 bottles?
34. 34.True or false: to leave tools on the floor is safe. (a) False (b) True
35. 35.🛞 Is friction helpful or a problem here: shoe soles wearing out? (a) a problem (b) helpful
36. 36.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
37. 37.True or false: “roll at least 2 metres” is a constraint (a limit). (a) False (b) True
38. 38.True or false: a movable pulley only changes direction. (a) False (b) True
39. 39.True or false: a fixed pulley hangs on the rope loop. (a) False (b) True
40. 40.♻️ A family used to throw away 8 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 2 weeks?

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