Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 919 · 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 design-process step is it to draw a labelled diagram? (a) Imagine (b) Plan (c) Ask (d) Test
2. 2.♻️ Which is the BEST order to think about waste? (a) burn, bury, forget (b) recycle, reuse, reduce (c) reduce, reuse, recycle (d) reuse, recycle, reduce
3. 3.🛞 Why are tyres made with deep treads? (a) to grip the road (b) to save rubber (c) to go slower (d) to look nice
4. 4.🪢 A stage stands on 5 identical legs and each leg is squeezed with 925 N. What is the total load on the stage, in newtons?
5. 5.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
6. 6.🔺 How do engineers stop a square frame from wobbling? (a) take off a side (b) paint it (c) add a diagonal brace (d) make it bigger
7. 7.True or false: a curved stone doorway uses a dome. (a) True (b) False
8. 8.🔺 Which strong shape does a lintel over a door use? (a) beam (b) arch (c) triangle (d) dome
9. 9.Which of these is recycle (make new things)? (a) carry a cloth bag (b) use a jar as a pen stand (c) switch off unused lights (d) pulp old paper
10. 10.⚖️ A lever bar balances. The load is ? N at 30 cm from the fulcrum. The effort is 180 N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
11. 11.Which of these uses an arch? (a) a shelf on two brackets (b) a planetarium roof (c) a roof truss (d) a curved stone doorway
12. 12.🏋️ A force of 340 N pushes a cart 9 m along the floor. How much work is done, in joules?
13. 13.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a constraint (b) a criterion
14. 14.True or false: a civil engineer makes medicines in bulk. (a) True (b) False
15. 15.🔢 To follow the engineering design process, which comes first: “Plan” or “Improve”? (a) Plan (b) Improve
16. 16.🏋️ Pushing a crate 2 m took 740 J of work. What force was used, in newtons?
17. 17.True or false: a water tank needs an electrical conductor. (a) True (b) False
18. 18.True or false: “finish in 40 minutes” is a criterion (a goal). (a) True (b) False
19. 19.⚖️ A seesaw balances. Ravi (170 N) sits ? m from the pivot on one side; Kabir (170 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
20. 20.🔺 One side of a straw bridge is a row of 9 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
21. 21.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 30 cm and the load at 70 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
22. 22.⚖️ Turning effect = force × … (a) colour of bar (b) distance from fulcrum (c) mass of fulcrum (d) time taken
23. 23.🪢 Tension or compression: a bridge pier? (a) compression (b) tension
24. 24.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
25. 25.🪢 Tension or compression: a stretched rubber band? (a) tension (b) compression
26. 26.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
27. 27.🪢 Tension is a force that … (a) pulls or stretches (b) pushes or squeezes (c) turns things (d) heats things
28. 28.🪢 Tension or compression: a tow rope on a car? (a) tension (b) compression
29. 29.True or false: a car seat belt needs a waterproof material. (a) False (b) True
30. 30.🔄 Which design-process step is it to make a prototype? (a) Create (b) Improve (c) Test (d) Ask
31. 31.🤝 Is it good or poor teamwork to agree before changing? (a) poor teamwork (b) good teamwork
32. 32.True or false: a screw jack is a screw. (a) True (b) False
33. 33.⚖️ Which class of lever is a broom when sweeping? (a) class 1 (b) class 3 (c) class 2
34. 34.True or false: a nutcracker is a screw. (a) True (b) False
35. 35.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 20 cm and the load at 60 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
36. 36.True or false: a round palace roof uses an arch. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) put tools back after use (b) carry scissors closed (c) wear safety goggles (d) run while holding tools
38. 38.True or false: a stone in an arch is in tension (pulled). (a) False (b) True
39. 39.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
40. 40.⚖️ A lever bar balances. The load is 180 N at 20 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?

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