Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 124 · 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 lever balances when … (a) the bar is short (b) both weights are equal (c) the fulcrum moves (d) turning effects match
2. 2.Which of these happens in the Improve step? (a) find the limits (b) dream up possible fixes (c) think of wild ideas (d) redesign after testing
3. 3.True or false: pulling up your socks is a push. (a) False (b) True
4. 4.⚖️ A seesaw balances. Ravi (420 N) sits 1 m from the pivot on one side; Asha (140 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
5. 5.True or false: a fort gateway uses an arch. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) roll at least 2 metres (b) fit on a school desk (c) hold up 500 g (d) float for 1 minute
7. 7.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is harder to tip over (d) it is colourful
8. 8.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) the youngest child (b) an adult (c) a stranger (d) any child alone
9. 9.🏋️ A machine lifts a load of 360 N when you push with 180 N. What is its mechanical advantage (MA)?
10. 10.🛠️ People need to carry many people far. Which invention helps? (a) a train (b) a dam (c) a fridge (d) a bridge
11. 11.🦺 In the workshop, is it safe to leave tools on the floor? (a) safe (b) not safe
12. 12.🌉 Which bridge type: “pushes out on its ends”? (a) beam bridge (b) suspension bridge (c) arch bridge
13. 13.🧪 A paper bridge was tested three times. It held 260 g, 240 g and 220 g. What is the mean (average) load it held, in grams?
14. 14.💪 Two children push a box to the right, one with 25 N and the other with 20 N. What is the net (total) force on the box, in newtons?
15. 15.🛠️ What does an engineer do before building anything? (a) builds at once (b) paints the model (c) buys every material (d) understands the problem
16. 16.True or false: an electric pylon uses a dome. (a) False (b) True
17. 17.True or false: a computer engineer designs factory machines. (a) True (b) False
18. 18.True or false: a wheel on ball bearings gives less friction. (a) True (b) False
19. 19.True or false: “keep ice for 1 hour” is a constraint (a limit). (a) False (b) True
20. 20.True or false: a squeezed spring is in compression (pushed). (a) False (b) True
21. 21.⚙️ A wedge is … (a) a wheel on a rod (b) a rope on a wheel (c) a bar on a pivot (d) two ramps back to back
22. 22.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) electrical (b) civil (c) biomedical (d) aerospace
23. 23.📐 On a plan, 1 cm stands for 5 m. A real bridge is 20 m long. How long is it on the plan, in centimetres?
24. 24.🏋️ Pushing a crate 6 m took 1200 J of work. What force was used, in newtons?
25. 25.♻️ Is sunlight a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
26. 26.🔺 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
27. 27.🤝 How do engineers share a design with others? (a) only talking fast (b) no drawings at all (c) clear labelled sketches (d) secret notes
28. 28.⚖️ A seesaw balances. Arjun (200 N) sits 1 m from the pivot on one side; Zoya (200 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
29. 29.📋 Constraint: the tower must be no taller than 80 cm. The team’s tower is 84 cm tall. Is it within the constraint? (a) No (b) Yes
30. 30.🦺 In the workshop, is it safe to touch a hot glue tip? (a) safe (b) not safe
31. 31.True or false: to carry scissors closed is not safe. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) keeping a simple shape (d) having a wide base
33. 33.🛠️ People need to store water for summer. Which invention helps? (a) a bridge (b) a telephone (c) a train (d) a dam
34. 34.♻️ Is coal a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
35. 35.True or false: a seesaw is a class 1 lever (fulcrum in the middle). (a) False (b) True
36. 36.True or false: a screw jack is a pulley. (a) False (b) True
37. 37.Which of these uses an arch? (a) a curved stone doorway (b) a plank over a drain (c) a crane arm (d) an electric pylon
38. 38.🔄 In which step do engineers draw a labelled diagram? (a) Improve (b) Ask (c) Plan (d) Test
39. 39.Which of these is in tension (pulled)? (a) a tall bridge tower (b) a swing chain (c) a temple column (d) a stone in an arch
40. 40.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a constraint (b) a criterion

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