Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 931 · 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.🪝 A pulley system has 4 rope sections holding up the load. To lift the load by 3 m, how many metres of rope must you pull?
2. 2.⚖️ In a class 1 lever, what is in the middle? (a) nothing (b) the effort (c) the load (d) the fulcrum
3. 3.Which job does a chemical engineer do? (a) wires a new building (b) designs car engines (c) refines crude oil (d) designs a metro tunnel
4. 4.Which of these is caused by gravity? (a) a compass needle turns (b) a river flows downhill (c) a rolling ball slows (d) a magnet picks up pins
5. 5.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
6. 6.True or false: powder on a carrom board gives more friction. (a) False (b) True
7. 7.🪢 A sign weighing 350 N hangs from 5 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
8. 8.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 900 N box up it, in newtons? (ideal ramp, no friction)
9. 9.🔍 Which is the odd one out? (a) a rainbow (b) a satellite (c) a mountain (d) a waterfall
10. 10.🪢 Tension or compression: a stretched rubber band? (a) compression (b) tension
11. 11.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
12. 12.True or false: a civil engineer makes medicines in bulk. (a) False (b) True
13. 13.💪 Two children push a box to the right, one with 100 N and the other with 50 N. What is the net (total) force on the box, in newtons?
14. 14.True or false: ocean wave energy is a renewable energy source. (a) True (b) False
15. 15.True or false: a biomedical engineer designs a metro tunnel. (a) True (b) False
16. 16.True or false: to define the problem is the Imagine step. (a) True (b) False
17. 17.🛞 Is friction helpful or a problem here: striking a matchstick? (a) a problem (b) helpful
18. 18.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 5 cm long in the drawing. How long is the real car, in centimetres?
19. 19.🌉 Which bridge type: “cables tied down at ends”? (a) beam bridge (b) arch bridge (c) suspension bridge
20. 20.What does the team leader do? (a) runs the tests (b) cuts and joins parts (c) keeps the design notes (d) shares out the jobs
21. 21.💪 Two children push a box to the right, one with 100 N and the other with 5 N. What is the net (total) force on the box, in newtons?
22. 22.🤝 A team plans for 60 minutes, builds for 30 minutes and then tests for 20 minutes, one after another. How many minutes is that in all?
23. 23.🔄 Which design-process step is it to think of wild ideas? (a) Ask (b) Plan (c) Create (d) Imagine
24. 24.🛞 More or less friction: a grippy rubber sole? (a) less friction (b) more friction
25. 25.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 400 g. Does it meet the criterion? (a) Yes (b) No
26. 26.🔺 Which strong shape does a crane arm use? (a) dome (b) beam (c) arch (d) triangle
27. 27.🏋️ Work is done when a force moves something … (a) very slowly (b) without moving it (c) only upwards (d) through a distance
28. 28.True or false: to test it only once is poor testing. (a) False (b) True
29. 29.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) adding cross bracing (d) building tall and narrow
30. 30.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) read the challenge rules (c) load it with coins (d) strengthen the weak part
31. 31.🔄 Which design-process step is it to dream up possible fixes? (a) Imagine (b) Plan (c) Test (d) Improve
32. 32.⚙️ Which simple machine is a bottle opener? (a) wheel and axle (b) lever (c) wedge (d) inclined plane
33. 33.Which of these uses a dome? (a) a curved stone doorway (b) an igloo (c) a roof truss (d) a truss bridge side
34. 34.♻️ A project report has 68 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
35. 35.True or false: a computer engineer keeps data safe online. (a) False (b) True
36. 36.⚖️ A lever bar balances. The load is 120 N at 30 cm from the fulcrum. The effort is 90 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
37. 37.🛞 More or less friction: chalk on a gym bar? (a) less friction (b) more friction
38. 38.⚖️ A lever bar balances. The load is 540 N at 50 cm from the fulcrum. The effort is ? N at 90 cm from the fulcrum on the other side. What is the missing force in newtons?
39. 39.True or false: to redesign after testing is the Imagine step. (a) True (b) False
40. 40.🔢 To follow the engineering design process, what comes right after “Create”? (a) Test (b) Imagine (c) Improve (d) Ask

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