Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 353 · 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 of these happens in the Imagine step? (a) fix the weak part (b) think of wild ideas (c) make it better, retest (d) define the problem
2. 2.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
3. 3.💪 A box weighs 340 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
4. 4.🛞 More or less friction: a rough doormat? (a) less friction (b) more friction
5. 5.🪝 Fixed or movable pulley: which one makes you pull 2× rope? (a) a movable pulley (b) a fixed pulley
6. 6.🛞 Rubbing your hands fast makes them … (a) wet (b) magnetic (c) warm (d) cold
7. 7.Which of these is recycle (make new things)? (a) fix a dripping tap (b) print on both sides (c) buy less packaging (d) melt glass into new jars
8. 8.⚖️ A seesaw balances. Meena (480 N) sits ? m from the pivot on one side; Kabir (480 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
9. 9.Which of these is made by engineers? (a) a railway track (b) a mountain (c) a banyan tree (d) a coral reef
10. 10.🧑‍🔧 Which kind of engineer wires a new building? (a) electrical (b) aerospace (c) biomedical (d) chemical
11. 11.Which of these is found in nature? (a) a lift (b) a dam (c) a satellite (d) a mountain
12. 12.True or false: “good for short gaps” is a beam bridge. (a) True (b) False
13. 13.🛠️ People need to store water for summer. Which invention helps? (a) a microscope (b) a fridge (c) a dam (d) a lift
14. 14.🧑‍🔧 Which kind of engineer designs school networks? (a) computer (b) biomedical (c) chemical (d) electrical
15. 15.🧑‍🔧 Which kind of engineer plans a dam? (a) mechanical (b) electrical (c) civil (d) aerospace
16. 16.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
17. 17.🔢 To follow the engineering design process, which comes first: “Improve” or “Plan”? (a) Improve (b) Plan
18. 18.🔢 To follow the engineering design process, which comes first: “Plan” or “Ask”? (a) Plan (b) Ask
19. 19.Which of these is reduce (use less)? (a) refill a water bottle (b) use a jar as a pen stand (c) switch off unused lights (d) melt glass into new jars
20. 20.🪝 A pulley system lifts a 90 N load with an effort of 30 N. What is its mechanical advantage (MA)?
21. 21.📋 Your team’s budget is ₹83. You must buy one roll of tape for ₹10. Straws cost ₹4 each. What is the greatest number of straws you can buy?
22. 22.🧑‍🔧 Which kind of engineer designs electric motors? (a) mechanical (b) biomedical (c) aerospace (d) electrical
23. 23.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 2 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
24. 24.🔍 Which is the odd one out? (a) skip writing results (b) test it only once (c) record every result (d) change lots at once
25. 25.True or false: a wheelbarrow is a class 1 lever (fulcrum in the middle). (a) True (b) False
26. 26.True or false: a planetarium roof uses a dome. (a) False (b) True
27. 27.📐 On a plan, 1 cm stands for 5 m. A real bridge is 70 m long. How long is it on the plan, in centimetres?
28. 28.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🔄 Which design-process step is it to make it better, retest? (a) Create (b) Test (c) Improve (d) Imagine
30. 30.True or false: a biomedical engineer builds hospital scanners. (a) True (b) False
31. 31.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
32. 32.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a criterion (b) a constraint
33. 33.📋 Constraint: the tower must be no taller than 40 cm. The team’s tower is 40 cm tall. Is it within the constraint? (a) No (b) Yes
34. 34.🔧 Which tool would you use to smooth a rough edge? (a) sandpaper (b) a tape measure (c) a spirit level (d) a spanner
35. 35.🧑‍🔧 Which kind of engineer builds rockets? (a) chemical (b) civil (c) aerospace (d) mechanical
36. 36.Which of these is found in nature? (a) a bridge (b) a coral reef (c) a mobile phone (d) a bicycle
37. 37.Which of these happens in the Imagine step? (a) make a prototype (b) find the limits (c) dream up possible fixes (d) pick the build order
38. 38.♻️ A family used to throw away 3 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 2 weeks?
39. 39.True or false: a mechanical engineer makes medicines in bulk. (a) True (b) False
40. 40.🤝 In a design team, who keeps the team on track? (a) recorder (b) builder (c) team leader (d) tester

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