Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 966 · 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.🛞 Rubbing your hands fast makes them … (a) warm (b) wet (c) magnetic (d) cold
2. 2.🪢 Tension or compression: a tug of war rope? (a) tension (b) compression
3. 3.🤝 Is it good or poor teamwork to laugh at ideas? (a) good teamwork (b) poor teamwork
4. 4.🔺 Which strong shape does a slab over a canal use? (a) dome (b) arch (c) triangle (d) beam
5. 5.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
6. 6.⚖️ A lever bar balances. The load is 400 N at 50 cm from the fulcrum. The effort is ? N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
7. 7.🤝 In a design team, who collects the supplies? (a) builder (b) tester (c) recorder (d) materials manager
8. 8.True or false: “the longest spans of all” is an arch bridge. (a) True (b) False
9. 9.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
10. 10.🛞 Which surface gives the MOST friction to a sliding block? (a) sandpaper (b) ice (c) polished marble (d) glass
11. 11.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🧑‍🔧 Which kind of engineer keeps data safe online? (a) aerospace (b) civil (c) chemical (d) computer
13. 13.♻️ Which is the BEST order to think about waste? (a) burn, bury, forget (b) reuse, recycle, reduce (c) reduce, reuse, recycle (d) recycle, reuse, reduce
14. 14.True or false: a crowbar is a class 1 lever (fulcrum in the middle). (a) True (b) False
15. 15.🪢 A concrete slab weighing 5000 N rests evenly on 2 identical pillars. What compression force does each pillar carry, in newtons?
16. 16.True or false: “use only paper and tape” is a constraint (a limit). (a) True (b) False
17. 17.📐 On a plan, 1 cm stands for 2 m. A wall is 18 cm long on the plan. How long is the real wall, in metres?
18. 18.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) stretched (tension) (b) not affected (c) squeezed (compression) (d) twisted
19. 19.Which of these is an arch bridge? (a) stones squeezed together (b) tall towers hold cables (c) good for short gaps (d) a log across a stream
20. 20.True or false: to guess, do not measure is good testing. (a) False (b) True
21. 21.True or false: a knife edge is an inclined plane. (a) False (b) True
22. 22.🔄 Which design-process step is it to ask who will use it? (a) Imagine (b) Plan (c) Ask (d) Test
23. 23.⚖️ Which class of lever is a fishing rod? (a) class 1 (b) class 2 (c) class 3
24. 24.🪝 A well winch has a handle (wheel) of radius 40 cm turning an axle of radius 5 cm. What is its mechanical advantage (MA)?
25. 25.⚖️ A seesaw balances. Kabir (100 N) sits 4 m from the pivot on one side; Ravi (? N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
26. 26.🔄 Is the engineering design process done only once? (a) only for big jobs (b) no, it repeats (c) only on Sundays (d) yes, only once
27. 27.⚖️ Which class of lever is a crowbar? (a) class 2 (b) class 3 (c) class 1
28. 28.🌉 A beam bridge 400 m long is split by piers into 10 equal spans. How long is each span, in metres?
29. 29.🦺 In the workshop, is it safe to let adults use hot glue? (a) not safe (b) safe
30. 30.Which of these is found in nature? (a) a dam (b) a waterfall (c) a satellite (d) a ceiling fan
31. 31.🛞 More or less friction: a grippy rubber sole? (a) less friction (b) more friction
32. 32.🪢 Tension or compression: a crane lifting cable? (a) compression (b) tension
33. 33.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
35. 35.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
36. 36.🏋️ In which unit is work measured? (a) joule (J) (b) metre (m) (c) newton (N) (d) watt hour
37. 37.🛞 Why are tyres made with deep treads? (a) to go slower (b) to save rubber (c) to look nice (d) to grip the road
38. 38.📋 Your team’s budget is ₹61. You must buy one roll of tape for ₹15. Straws cost ₹2 each. What is the greatest number of straws you can buy?
39. 39.Which of these happens in the Ask step? (a) ask who will use it (b) pick the build order (c) draw a labelled diagram (d) make it better, retest
40. 40.True or false: to use a new load each time is poor testing. (a) True (b) False

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