Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 451 · 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.⚙️ Which simple machine is a crowbar? (a) lever (b) pulley (c) inclined plane (d) wheel and axle
2. 2.🔺 Which shape keeps its shape best when its corners are pinned? (a) rectangle (b) hexagon (c) triangle (d) square
3. 3.⚖️ A seesaw balances. Kabir (560 N) sits 1 m from the pivot on one side; Zoya (140 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
4. 4.📐 On a plan, 1 cm stands for 2 m. A wall is 4 cm long on the plan. How long is the real wall, in metres?
5. 5.🏋️ A smooth ramp is 4 m long and rises 1 m. What effort pushes a 2000 N box up it, in newtons? (ideal ramp, no friction)
6. 6.🔄 Which design-process step is it to make a prototype? (a) Test (b) Plan (c) Ask (d) Create
7. 7.🌉 In a stone arch bridge, the stones are in … (a) no force (b) compression (c) tension (d) friction
8. 8.True or false: diesel is a non-renewable energy source. (a) False (b) True
9. 9.🔺 A flat frame has 4 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
10. 10.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
11. 11.⚖️ On a seesaw, a heavier child should sit … (a) closer to the pivot (b) anywhere (c) on the pivot (d) farther from the pivot
12. 12.True or false: kicking a football is a pull. (a) False (b) True
13. 13.Which of these is made by engineers? (a) a river (b) a bicycle (c) a coral reef (d) a mountain
14. 14.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 15 cm long in the drawing. How long is the real car, in centimetres?
15. 15.🔍 Which is the odd one out? (a) steel (b) brass (c) aluminium (d) glass
16. 16.⚖️ Which class of lever is a beam balance? (a) class 1 (b) class 3 (c) class 2
17. 17.🪝 Fixed or movable pulley: which one only changes direction? (a) a movable pulley (b) a fixed pulley
18. 18.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
19. 19.🪢 Tension or compression: a swing chain? (a) tension (b) compression
20. 20.🔢 To follow the engineering design process, what comes right after “Create”? (a) Improve (b) Ask (c) Test (d) Imagine
21. 21.🛠️ Is a lift made by engineers or found in nature? (a) made by engineers (b) found in nature
22. 22.Which of these is found in nature? (a) a bicycle (b) a mobile phone (c) a waterfall (d) a dam
23. 23.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 20 cm and the load at 90 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
24. 24.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
25. 25.⚖️ A lever bar balances. The load is 300 N at 30 cm from the fulcrum. The effort is 300 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
26. 26.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) computer (b) biomedical (c) civil (d) chemical
27. 27.⚖️ Along a straight bar, measured from the left end, the effort is at 80 cm, the fulcrum at 40 cm and the load at 30 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
28. 28.Which of these needs a heat insulator? (a) an oven glove (b) a roof sheet (c) an umbrella cover (d) a magnifier lens
29. 29.🌉 What holds up a long beam bridge in the middle? (a) piers (b) balloons (c) nothing (d) cables only
30. 30.True or false: to redesign after testing is the Ask step. (a) True (b) False
31. 31.True or false: pulling up your socks is a pull. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) making brittle joints (d) adding cross bracing
33. 33.🤝 Is it good or poor teamwork to help a stuck teammate? (a) good teamwork (b) poor teamwork
34. 34.True or false: to share the work fairly is good teamwork. (a) False (b) True
35. 35.⚖️ 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
36. 36.🤝 In a design team, who tracks what is used up? (a) team leader (b) materials manager (c) builder (d) tester
37. 37.🌉 Which bridge type: “deck hangs from cables”? (a) beam bridge (b) arch bridge (c) suspension bridge
38. 38.🔄 After testing, a design does not work well. What comes next? (a) Imagine (b) give up (c) Ask (d) Improve
39. 39.🛠️ Is a banyan tree made by engineers or found in nature? (a) found in nature (b) made by engineers
40. 40.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor

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