Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 861 · 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 is the odd one out? (a) a brick at a wall base (b) a pillar under a roof (c) a stone in an arch (d) a stretched rubber band
2. 2.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) the first is wrong (d) to get reliable results
3. 3.📋 A constraint is … (a) a goal for success (b) a limit you must keep to (c) a final test (d) a kind of glue
4. 4.True or false: to carry scissors closed is not safe. (a) False (b) True
5. 5.Which job does a civil engineer do? (a) designs knee implants (b) designs a paint factory (c) plans a dam (d) designs electric motors
6. 6.🔺 A flat frame has 5 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
7. 7.📋 Criterion: the model bridge must hold at least 1000 g. In the test it held 900 g. Does it meet the criterion? (a) No (b) Yes
8. 8.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
9. 9.Which of these is an arch bridge? (a) deck hangs from cables (b) cables tied down at ends (c) stones squeezed together (d) good for short gaps
10. 10.🔢 To follow the engineering design process, which comes first: “Create” or “Test”? (a) Test (b) Create
11. 11.🪢 A stage stands on 7 identical legs and each leg is squeezed with 850 N. What is the total load on the stage, in newtons?
12. 12.♻️ Reduce, reuse or recycle: print on both sides? (a) reuse (b) recycle (c) reduce
13. 13.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) using a heavy roof (c) fitting rubber base pads (d) keeping a simple shape
14. 14.♻️ Reduce, reuse or recycle: carry a cloth bag? (a) reuse (b) recycle (c) reduce
15. 15.🧪 A paper bridge was tested three times. It held 400 g, 200 g and 300 g. What is the mean (average) load it held, in grams?
16. 16.True or false: a box pushed on carpet gives less friction. (a) True (b) False
17. 17.⚖️ Along a straight bar, measured from the left end, the effort is at 100 cm, the fulcrum at 20 cm and the load at 60 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
18. 18.🤝 Why do engineers work in teams? (a) to finish nothing (b) to argue more (c) to work alone (d) many skills and ideas
19. 19.True or false: a fixed pulley hangs on the rope loop. (a) False (b) True
20. 20.What does the recorder do? (a) writes down results (b) shares out the jobs (c) puts the model together (d) keeps the team on track
21. 21.🪢 Which material is good in tension but useless in compression? (a) a brick (b) a rope (c) a concrete block (d) a stone
22. 22.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) using a heavy roof (d) adding cross bracing
23. 23.🔺 Which strong shape does an electric pylon use? (a) beam (b) dome (c) triangle (d) arch
24. 24.🪝 A pulley system lifts a 120 N load with an effort of 60 N. What is its mechanical advantage (MA)?
25. 25.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 10 cm long in the drawing. How long is the real car, in centimetres?
26. 26.🧑‍🔧 Which kind of engineer designs school networks? (a) civil (b) computer (c) aerospace (d) chemical
27. 27.Which of these needs a flexible material? (a) a car seat belt (b) a tea flask lining (c) a spectacle lens (d) a window pane
28. 28.🔍 Which is the odd one out? (a) let adults use hot glue (b) put tools back after use (c) wear safety goggles (d) touch a hot glue tip
29. 29.⚖️ Which class of lever is a bottle opener? (a) class 3 (b) class 1 (c) class 2
30. 30.True or false: to own up to a mistake is poor teamwork. (a) True (b) False
31. 31.🔄 Which design-process step is it to try it out? (a) Plan (b) Ask (c) Test (d) Create
32. 32.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
33. 33.🪝 A winch has a wheel of radius 6 cm and an axle of radius 3 cm. What effort on the wheel lifts a 120 N bucket on the axle, in newtons? (ideal)
34. 34.♻️ Which energy source will never run out? (a) diesel (b) coal (c) sunlight (d) petrol
35. 35.True or false: a smooth steel slide gives less friction. (a) False (b) True
36. 36.True or false: to help a stuck teammate is poor teamwork. (a) True (b) False
37. 37.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
38. 38.📐 On a plan, 1 cm stands for 20 m. A wall is 4 cm long on the plan. How long is the real wall, in metres?
39. 39.🌉 A beam bridge 70 m long is split by piers into 2 equal spans. How long is each span, in metres?
40. 40.🏋️ Work is done when a force moves something … (a) through a distance (b) only upwards (c) very slowly (d) without moving it

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