Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 790 · 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.♻️ Reduce, reuse or recycle: buy less packaging? (a) recycle (b) reduce (c) reuse
2. 2.💪 A force is a … (a) unit of time (b) kind of colour (c) push or a pull (d) type of sound
3. 3.🔍 Which is the odd one out? (a) a wheel on ball bearings (b) a rough doormat (c) a smooth steel slide (d) oil on a squeaky hinge
4. 4.🛞 More or less friction: a wheel on ball bearings? (a) less friction (b) more friction
5. 5.True or false: to repeat each test is good testing. (a) True (b) False
6. 6.⚙️ Which simple machine is a water tap handle? (a) pulley (b) wheel and axle (c) wedge (d) screw
7. 7.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
8. 8.🪝 A winch has a wheel of radius 21 cm and an axle of radius 3 cm. What effort on the wheel lifts a 1120 N bucket on the axle, in newtons? (ideal)
9. 9.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 3 cm long in the drawing. How long is the real car, in centimetres?
10. 10.🔍 Which is the odd one out? (a) aluminium (b) copper (c) glass (d) iron
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
12. 12.🔺 A frame shaped like a triangle is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
13. 13.📐 On a plan, 1 cm stands for 10 m. A real bridge is 60 m long. How long is it on the plan, in centimetres?
14. 14.💪 Which force is at work: a rolling ball slows? (a) friction (b) magnetic force (c) gravity (d) muscular force
15. 15.⚖️ Going along a lever from one end to the other, the order is: fulcrum, effort, load. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
16. 16.True or false: sunlight is a non-renewable energy source. (a) True (b) False
17. 17.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) no, work stays the same (c) yes, by half (d) only on Mondays
18. 18.⚖️ A lever bar balances. The load is ? N at 50 cm from the fulcrum. The effort is 50 N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
19. 19.True or false: a movable pulley stays in one place. (a) True (b) False
20. 20.🛠️ Is a waterfall made by engineers or found in nature? (a) made by engineers (b) found in nature
21. 21.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
22. 22.🌉 Which bridge type: “pushes out on its ends”? (a) suspension bridge (b) arch bridge (c) beam bridge
23. 23.True or false: “good for short gaps” is a beam bridge. (a) True (b) False
24. 24.🤝 In a design team, who keeps the design notes? (a) materials manager (b) recorder (c) builder (d) team leader
25. 25.Which job does a computer engineer do? (a) designs electric motors (b) designs car engines (c) designs school networks (d) makes medicines in bulk
26. 26.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) test it only once (d) use the same load
27. 27.True or false: a biomedical engineer designs hearing aids. (a) False (b) True
28. 28.True or false: “fit on a school desk” is a criterion (a goal). (a) False (b) True
29. 29.True or false: an electrical engineer designs car engines. (a) True (b) False
30. 30.True or false: to share the work fairly is poor teamwork. (a) True (b) False
31. 31.🔄 Which design-process step is it to dream up possible fixes? (a) Plan (b) Create (c) Imagine (d) Test
32. 32.⚖️ A seesaw balances. Kabir (390 N) sits 4 m from the pivot on one side; Meena (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
33. 33.Which of these is a suspension bridge? (a) stones squeezed together (b) the simplest bridge (c) a flat deck on piers (d) deck hangs from cables
34. 34.🏋️ A force of 200 N pushes a cart 6 m along the floor. How much work is done, in joules?
35. 35.📐 On a plan, 1 cm stands for 20 m. A real bridge is 280 m long. How long is it on the plan, in centimetres?
36. 36.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, always (b) yes, it works (c) only if it is red (d) no, it breaks a limit
37. 37.🏋️ A force of 320 N pushes a cart 2 m along the floor. How much work is done, in joules?
38. 38.🤝 Is it good or poor teamwork to talk over others? (a) poor teamwork (b) good teamwork
39. 39.🔄 Which design-process step is it to check it against goals? (a) Imagine (b) Ask (c) Plan (d) Test
40. 40.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a criterion (b) a constraint

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