Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 222 · 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.📋 Criterion: the model bridge must hold at least 200 g. In the test it held 350 g. Does it meet the criterion? (a) Yes (b) No
2. 2.Which of these happens in the Improve step? (a) make a prototype (b) follow the plan to build (c) brainstorm many ideas (d) redesign after testing
3. 3.📋 Constraint: the tower must be no taller than 60 cm. The team’s tower is 54 cm tall. Is it within the constraint? (a) No (b) Yes
4. 4.Which job does a computer engineer do? (a) designs hearing aids (b) designs electric motors (c) writes app software (d) plans a power grid
5. 5.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
6. 6.🔍 Which is the odd one out? (a) a river (b) a banyan tree (c) a satellite (d) a rainbow
7. 7.🔍 Which is the odd one out? (a) finish in 40 minutes (b) use at most 20 straws (c) use only paper and tape (d) float for 1 minute
8. 8.🔧 Which tool would you use to smooth a rough edge? (a) a screwdriver (b) pliers (c) sandpaper (d) a saw
9. 9.♻️ Is ocean wave energy a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
10. 10.🤝 In a design team, who keeps the design notes? (a) builder (b) recorder (c) materials manager (d) team leader
11. 11.🧑‍🔧 Which kind of engineer plans a dam? (a) electrical (b) civil (c) mechanical (d) biomedical
12. 12.⚖️ A lever bar balances. The load is 420 N at 50 cm from the fulcrum. The effort is ? N at 70 cm from the fulcrum on the other side. What is the missing force in newtons?
13. 13.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) transparent (c) heat insulator (d) flexible
14. 14.🧑‍🔧 Which kind of engineer designs car engines? (a) mechanical (b) civil (c) aerospace (d) computer
15. 15.⚖️ Turning effect = force × … (a) colour of bar (b) distance from fulcrum (c) mass of fulcrum (d) time taken
16. 16.⚖️ A lever bar balances. The load is ? N at 20 cm from the fulcrum. The effort is 80 N at 50 cm from the fulcrum on the other side. What is the missing force in newtons?
17. 17.🪝 Fixed or movable pulley: which one stays in one place? (a) a movable pulley (b) a fixed pulley
18. 18.🌉 A beam bridge is 245 m long. Piers split it into equal spans of 35 m. How many spans are there?
19. 19.⚖️ A lever bar balances. The load is ? N at 20 cm from the fulcrum. The effort is 60 N at 90 cm from the fulcrum on the other side. What is the missing force in newtons?
20. 20.🪢 Tension is a force that … (a) heats things (b) turns things (c) pulls or stretches (d) pushes or squeezes
21. 21.🪝 A bucket weighing 360 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
22. 22.True or false: a stone in an arch is in compression (pushed). (a) True (b) False
23. 23.🔢 To follow the engineering design process, which is the LAST step? (a) Improve (b) Create (c) Plan (d) Ask
24. 24.True or false: an aerospace engineer plans a space mission. (a) True (b) False
25. 25.What does the team leader do? (a) cuts and joins parts (b) shares out the jobs (c) puts the model together (d) tracks what is used up
26. 26.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 1650 N box up it, in newtons? (ideal ramp, no friction)
27. 27.📐 On a plan, 1 cm stands for 2 m. A wall is 18 cm long on the plan. How long is the real wall, in metres?
28. 28.True or false: “a flat deck on piers” is a beam bridge. (a) True (b) False
29. 29.True or false: a water tank needs a waterproof material. (a) False (b) True
30. 30.True or false: a rainbow is found in nature. (a) True (b) False
31. 31.⚖️ A seesaw balances. Arjun (? N) sits 3 m from the pivot on one side; Zoya (510 N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
32. 32.📐 Why do engineers use scale drawings? (a) to make them pretty (b) to save ink only (c) big things fit on paper (d) to hide sizes
33. 33.Which of these is found in nature? (a) a dam (b) a coral reef (c) a railway track (d) a mobile phone
34. 34.🌉 Which bridge type: “a log across a stream”? (a) arch bridge (b) suspension bridge (c) beam bridge
35. 35.⚖️ On a seesaw, a heavier child should sit … (a) on the pivot (b) closer to the pivot (c) anywhere (d) farther from the pivot
36. 36.🪝 More rope sections holding a load means … (a) no change (b) less effort needed (c) the load floats (d) more effort needed
37. 37.True or false: an aerospace engineer designs artificial limbs. (a) True (b) False
38. 38.⚖️ Which class of lever is a lemon squeezer? (a) class 1 (b) class 2 (c) class 3
39. 39.⚖️ Which class of lever is a seesaw? (a) class 2 (b) class 3 (c) class 1
40. 40.Which of these uses an arch? (a) a roof truss (b) a lintel over a door (c) a curved stone doorway (d) a plank over a drain

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