Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 270 · 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 property matters most for a car windscreen? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
2. 2.True or false: a water tank needs a transparent material. (a) True (b) False
3. 3.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a constraint (b) a criterion
4. 4.📐 On a plan, 1 cm stands for 20 m. A real bridge is 220 m long. How long is it on the plan, in centimetres?
5. 5.True or false: plucking a mango is a pull. (a) True (b) False
6. 6.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
7. 7.🌉 A beam bridge is 60 m long. Piers split it into equal spans of 15 m. How many spans are there?
8. 8.Which of these is found in nature? (a) a lift (b) a mobile phone (c) a coral reef (d) a bridge
9. 9.Which of these is a beam bridge? (a) a flat deck on piers (b) stones squeezed together (c) a curve under the deck (d) tall towers hold cables
10. 10.🔍 Which is the odd one out? (a) guess, do not measure (b) use a new load each time (c) change only one thing (d) skip writing results
11. 11.⚖️ A seesaw balances. Ravi (? N) sits 1 m from the pivot on one side; Meena (190 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
12. 12.True or false: “be under 30 cm tall” is a criterion (a goal). (a) True (b) False
13. 13.🔢 To follow the engineering design process, which comes first: “Create” or “Test”? (a) Test (b) Create
14. 14.🔍 Which is the odd one out? (a) keep ice for 1 hour (b) float for 1 minute (c) hold up 500 g (d) spend at most ₹100
15. 15.🔢 To follow the engineering design process, which is the FIRST step? (a) Ask (b) Imagine (c) Improve (d) Test
16. 16.🔍 Which is the odd one out? (a) a chisel (b) a crowbar (c) an axe blade (d) a knife edge
17. 17.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) biomedical (b) civil (c) computer (d) chemical
18. 18.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using flexible joints (c) using a heavy roof (d) adding steel to concrete
19. 19.True or false: closing a drawer is a push. (a) False (b) True
20. 20.Which of these is made by engineers? (a) a cloud (b) a mountain (c) a bridge (d) a waterfall
21. 21.⚖️ A seesaw balances. Asha (? N) sits 4 m from the pivot on one side; Ravi (760 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
22. 22.Which job is a screwdriver for? (a) turn a screw (b) smooth a rough edge (c) measure an angle (d) check a shelf is level
23. 23.🛠️ Is a waterfall made by engineers or found in nature? (a) made by engineers (b) found in nature
24. 24.What does the tester do? (a) shares out the jobs (b) runs the tests (c) cuts and joins parts (d) collects the supplies
25. 25.♻️ Reduce, reuse or recycle: switch off unused lights? (a) recycle (b) reduce (c) reuse
26. 26.🤝 Why do engineers work in teams? (a) to finish nothing (b) to argue more (c) to work alone (d) many skills and ideas
27. 27.True or false: to measure a long length, use a tape measure. (a) False (b) True
28. 28.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 5 cm long in the drawing. How long is the real car, in centimetres?
29. 29.🔺 Which strong shape does a crane arm use? (a) triangle (b) beam (c) dome (d) arch
30. 30.📐 Why do engineers use scale drawings? (a) to make them pretty (b) to save ink only (c) to hide sizes (d) big things fit on paper
31. 31.🏋️ Mechanical advantage (MA) = … (a) load + effort (b) effort ÷ load (c) load ÷ effort (d) load × effort
32. 32.⚖️ Which class of lever is your forearm? (a) class 2 (b) class 1 (c) class 3
33. 33.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 350 g. Does it meet the criterion? (a) Yes (b) No
34. 34.🌉 Which bridge type: “deck hangs from cables”? (a) beam bridge (b) suspension bridge (c) arch bridge
35. 35.🏋️ A machine lifts a load of 80 N when you push with 40 N. What is its mechanical advantage (MA)?
36. 36.Which of these happens in the Test step? (a) measure its performance (b) ask who will use it (c) pick the build order (d) think of wild ideas
37. 37.True or false: the tip of a nail is a wheel and axle. (a) False (b) True
38. 38.🔄 Which design-process step is it to draw a labelled diagram? (a) Improve (b) Ask (c) Imagine (d) Plan
39. 39.⚖️ A lever bar balances. The load is 480 N at 10 cm from the fulcrum. The effort is ? N at 60 cm from the fulcrum on the other side. What is the missing force in newtons?
40. 40.⚖️ Which class of lever is a crowbar? (a) class 2 (b) class 1 (c) class 3

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