Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 823 · 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.🪝 A wheel and axle is a big wheel fixed to … (a) a flat ramp (b) a loose rope (c) a sharp wedge (d) a smaller rod (axle)
2. 2.Which of these happens in the Plan step? (a) think of wild ideas (b) build the model (c) pick the build order (d) check it against goals
3. 3.Which need does a telephone meet? (a) see very tiny things (b) carry many people far (c) go through a mountain (d) talk to someone far away
4. 4.🤝 A team of 2 shares 6 equal jobs fairly. Each job takes 8 minutes. How many minutes does each person work?
5. 5.True or false: a river is made by engineers. (a) True (b) False
6. 6.🛞 Is friction helpful or a problem here: walking without slipping? (a) helpful (b) a problem
7. 7.🔺 A frame shaped like a hexagon is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
8. 8.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) heat insulator (d) transparent
9. 9.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
10. 10.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 120 N at 80 cm from the fulcrum on the other side. What is the missing force in newtons?
11. 11.🪢 Tension or compression: a tall bridge tower? (a) tension (b) compression
12. 12.📐 How many metres are in 1 kilometre? (a) 1000 (b) 10000 (c) 10 (d) 100
13. 13.🪝 A pulley system lifts a 720 N load with an effort of 180 N. What is its mechanical advantage (MA)?
14. 14.True or false: a pair of pliers is a class 1 lever (fulcrum in the middle). (a) False (b) True
15. 15.🪝 Fixed or movable pulley: which one stays in one place? (a) a movable pulley (b) a fixed pulley
16. 16.True or false: “deck hangs from cables” is a beam bridge. (a) True (b) False
17. 17.🪢 Tension or compression: a squeezed spring? (a) tension (b) compression
18. 18.🔺 A frame shaped like a square is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
19. 19.Which of these needs a heat insulator? (a) an oven glove (b) a car seat belt (c) a roof sheet (d) a raincoat
20. 20.🔍 Which is the odd one out? (a) a nut and bolt (b) a wood screw (c) a water tap handle (d) a jar lid
21. 21.Which of these is a pulley? (a) a round doorknob (b) a crowbar (c) a seesaw (d) a well-bucket rope wheel
22. 22.🛠️ People need to go through a mountain. Which invention helps? (a) a bridge (b) a tunnel (c) a telephone (d) a water filter
23. 23.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
24. 24.🧑‍🔧 Which kind of engineer designs knee implants? (a) aerospace (b) electrical (c) biomedical (d) mechanical
25. 25.📐 Why do engineers use scale drawings? (a) to save ink only (b) to hide sizes (c) big things fit on paper (d) to make them pretty
26. 26.🏋️ A force of 40 N pushes a cart 2 m along the floor. How much work is done, in joules?
27. 27.🔍 Which is the odd one out? (a) a volcano (b) a lift (c) a mountain (d) a seashell
28. 28.♻️ Is sunlight a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
29. 29.🏋️ Pushing a crate 9 m took 1620 J of work. What force was used, in newtons?
30. 30.🔍 Which is the odd one out? (a) cut away from your body (b) run while holding tools (c) wear safety goggles (d) tie back long hair
31. 31.🔍 Which is the odd one out? (a) a mountain (b) a cloud (c) a volcano (d) a railway track
32. 32.🪝 Fixed or movable pulley: which one makes you pull 2× rope? (a) a movable pulley (b) a fixed pulley
33. 33.True or false: a movable pulley is on a flagpole top. (a) True (b) False
34. 34.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
35. 35.🏋️ A longer ramp to the same height needs … (a) less effort (b) no effort (c) more effort (d) the same effort
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
37. 37.⚖️ A seesaw balances. Zoya (260 N) sits 1 m from the pivot on one side; Arjun (130 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
38. 38.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Improve (b) Plan (c) Imagine (d) Create
39. 39.💪 Which force is at work: rain falls to the ground? (a) friction (b) gravity (c) magnetic force (d) muscular force
40. 40.🔺 One side of a straw bridge is a row of 12 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?

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