Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 31 · 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.🔢 To follow the engineering design process, what comes right after “Plan”? (a) Ask (b) Imagine (c) Create (d) Test
2. 2.True or false: a table leg is in compression (pushed). (a) False (b) True
3. 3.📋 Constraint: the tower must be no taller than 50 cm. The team’s tower is 48 cm tall. Is it within the constraint? (a) Yes (b) No
4. 4.🏋️ Can a simple machine reduce the work done? (a) only on Mondays (b) yes, always (c) no, work stays the same (d) yes, by half
5. 5.Which of these is a wheel and axle? (a) a jar lid (b) a seesaw (c) a window blind cord (d) a water tap handle
6. 6.📐 How many millimetres are in 1 centimetre? (a) 10 (b) 5 (c) 1000 (d) 100
7. 7.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) leaving out steel bars (d) using a light roof
8. 8.True or false: “a log across a stream” is a beam bridge. (a) False (b) True
9. 9.True or false: a bottle opener is a class 3 lever (effort in the middle). (a) True (b) False
10. 10.🔺 Which strong shape does a roof truss use? (a) beam (b) arch (c) dome (d) triangle
11. 11.🪝 A bucket weighing 490 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
12. 12.Which need does a fridge meet? (a) keep food fresh longer (b) carry many people far (c) reach a top floor fast (d) go through a mountain
13. 13.True or false: petrol is a renewable energy source. (a) True (b) False
14. 14.🤝 In a design team, who checks the goals are met? (a) team leader (b) tester (c) recorder (d) builder
15. 15.Which of these is an arch bridge? (a) deck hangs from cables (b) a curve under the deck (c) cables tied down at ends (d) the longest spans of all
16. 16.🤝 A team of 4 shares 8 equal jobs fairly. Each job takes 5 minutes. How many minutes does each person work?
17. 17.⚖️ In a class 1 lever, what is in the middle? (a) the effort (b) the fulcrum (c) nothing (d) the load
18. 18.🪝 A pulley system lifts an 80 N load with an effort of 20 N. What is its mechanical advantage (MA)?
19. 19.🛞 More or less friction: a wet tiled floor? (a) more friction (b) less friction
20. 20.💪 Two children push a box to the right, one with 65 N and the other with 85 N. What is the net (total) force on the box, in newtons?
21. 21.🔺 A beam bends under a load. Its top side is … (a) not affected (b) squeezed (compression) (c) stretched (tension) (d) floating
22. 22.🏋️ Pushing a crate 3 m took 30 J of work. What force was used, in newtons?
23. 23.💪 A bag has a mass of 22 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.🔢 To follow the engineering design process, what comes right after “Test”? (a) Improve (b) Imagine (c) Plan (d) Ask
25. 25.⚖️ Going along a lever from one end to the other, the order is: fulcrum, load, effort. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
26. 26.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) leaving out steel bars (d) using flexible joints
27. 27.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
29. 29.🤝 A team plans for 25 minutes, builds for 25 minutes and then tests for 25 minutes, one after another. How many minutes is that in all?
30. 30.True or false: a knife edge is a screw. (a) True (b) False
31. 31.🤝 A team of 4 shares 12 equal jobs fairly. Each job takes 7 minutes. How many minutes does each person work?
32. 32.Which of these is in tension (pulled)? (a) a hanging lamp chain (b) a table leg (c) a pillar under a roof (d) a tall bridge tower
33. 33.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 20 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
34. 34.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) chemical (b) civil (c) biomedical (d) computer
35. 35.True or false: a chemical engineer runs a fertiliser plant. (a) False (b) True
36. 36.🛠️ People need to make power from sunlight. Which invention helps? (a) a telephone (b) a tunnel (c) a lift (d) a solar panel
37. 37.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
38. 38.⚖️ A seesaw balances. Asha (400 N) sits 3 m from the pivot on one side; Kabir (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
39. 39.🪝 A load of 960 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
40. 40.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) civil (b) aerospace (c) electrical (d) biomedical

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