Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 227 · 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: an aerospace engineer plans a space mission. (a) False (b) True
2. 2.True or false: to repeat each test is poor testing. (a) True (b) False
3. 3.🤝 Is it good or poor teamwork to share the work fairly? (a) poor teamwork (b) good teamwork
4. 4.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🛠️ What does an engineer mainly do? (a) sells tickets (b) only paints pictures (c) designs useful solutions (d) grows crops
6. 6.🪝 A winch has a wheel of radius 16 cm and an axle of radius 2 cm. What effort on the wheel lifts a 1600 N bucket on the axle, in newtons? (ideal)
7. 7.Which of these happens in the Imagine step? (a) build the model (b) think of wild ideas (c) check it against goals (d) follow the plan to build
8. 8.True or false: a window blind cord is a wheel and axle. (a) False (b) True
9. 9.🛞 More or less friction: a wheel on ball bearings? (a) less friction (b) more friction
10. 10.Which of these uses a beam? (a) a roof truss (b) a lintel over a door (c) an old stone bridge (d) a fort gateway
11. 11.🔍 Which is the odd one out? (a) hold up 500 g (b) use only paper and tape (c) keep ice for 1 hour (d) lift a cup of water
12. 12.True or false: a raincoat needs an electrical conductor. (a) True (b) False
13. 13.True or false: a broom when sweeping is a class 1 lever (fulcrum in the middle). (a) False (b) True
14. 14.🧪 What is a prototype? (a) a sales poster (b) the final product (c) a broken part (d) an early test model
15. 15.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
16. 16.🔍 Which is the odd one out? (a) a jar lid (b) a wood screw (c) a screw jack (d) a wheelchair ramp
17. 17.🪢 A stage stands on 8 identical legs and each leg is squeezed with 900 N. What is the total load on the stage, in newtons?
18. 18.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
19. 19.🔄 Is the engineering design process done only once? (a) yes, only once (b) no, it repeats (c) only on Sundays (d) only for big jobs
20. 20.True or false: an oven glove needs a heat insulator. (a) True (b) False
21. 21.Which of these happens in the Ask step? (a) make it better, retest (b) brainstorm many ideas (c) find the limits (d) check it against goals
22. 22.True or false: to change only one thing is poor testing. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) a squeezed spring (b) a swing chain (c) a stretched rubber band (d) a tent guy rope
24. 24.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) why is the sky blue? (b) what is for lunch? (c) who won the match? (d) how can we build it?
25. 25.Which job is pliers for? (a) grip and bend wire (b) measure an angle (c) cut a wooden plank (d) tighten a nut
26. 26.🔺 Which strong shape does a crane arm use? (a) triangle (b) dome (c) arch (d) beam
27. 27.Which of these happens in the Ask step? (a) define the problem (b) dream up possible fixes (c) draw a labelled diagram (d) try it out
28. 28.⚖️ Turning effect = force × … (a) colour of bar (b) time taken (c) distance from fulcrum (d) mass of fulcrum
29. 29.📐 On a plan, 1 cm stands for 5 m. A real bridge is 100 m long. How long is it on the plan, in centimetres?
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 300 g and design C held 400 g. Which design was the weakest? (a) design B (b) design A (c) design C
31. 31.🛞 Is friction helpful or a problem here: a door hinge squeaking? (a) a problem (b) helpful
32. 32.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
33. 33.🧑‍🔧 Which kind of engineer designs a gearbox? (a) mechanical (b) chemical (c) civil (d) electrical
34. 34.📋 A constraint is … (a) a limit you must keep to (b) a kind of glue (c) a goal for success (d) a final test
35. 35.True or false: ocean wave energy is a non-renewable energy source. (a) False (b) True
36. 36.🤝 A team plans for 15 minutes, builds for 25 minutes and then tests for 10 minutes, one after another. How many minutes is that in all?
37. 37.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
38. 38.True or false: opening a drawer is a pull. (a) False (b) True
39. 39.🧑‍🔧 Which kind of engineer plans a power grid? (a) chemical (b) civil (c) electrical (d) mechanical
40. 40.True or false: to make a hole in wood, use a hand drill. (a) True (b) False

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