Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 543 · 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.♻️ Is diesel a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
2. 2.🔺 A flat frame has 9 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
3. 3.Which of these needs a transparent material? (a) an umbrella cover (b) a raincoat (c) a window pane (d) an oven glove
4. 4.📋 Criteria are … (a) the team names (b) the tools you use (c) the limits on money (d) goals a design must meet
5. 5.🔢 To follow the engineering design process, what comes right after “Plan”? (a) Imagine (b) Improve (c) Ask (d) Create
6. 6.Which job is a spanner for? (a) measure a long length (b) cut a wooden plank (c) smooth a rough edge (d) tighten a nut
7. 7.🔧 Which tool would you use to grip and bend wire? (a) pliers (b) a hammer (c) a hand drill (d) a spanner
8. 8.Which of these needs a waterproof material? (a) a magnifier lens (b) a roof sheet (c) a plug pin (d) a spectacle lens
9. 9.⚖️ A seesaw balances. Kabir (520 N) sits 4 m from the pivot on one side; Arjun (? N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
10. 10.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 3 N, a glass sheet 7 N, a wooden plank 11 N, a carpet 13 N. Which surface gave the most friction? (a) a glass sheet (b) a carpet (c) a wooden plank (d) ice
11. 11.🪢 A concrete slab weighing 7700 N rests evenly on 7 identical pillars. What compression force does each pillar carry, in newtons?
12. 12.Which job is a screwdriver for? (a) measure a long length (b) turn a screw (c) cut a wooden plank (d) smooth a rough edge
13. 13.True or false: a crowbar is a class 1 lever (fulcrum in the middle). (a) False (b) True
14. 14.🤝 In a design team, who tracks what is used up? (a) builder (b) tester (c) materials manager (d) team leader
15. 15.🔢 To follow the engineering design process, which comes first: “Imagine” or “Plan”? (a) Imagine (b) Plan
16. 16.🔍 Which is the odd one out? (a) steel (b) glass (c) aluminium (d) copper
17. 17.🏋️ An 11 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
18. 18.True or false: a pair of tweezers is a class 1 lever (fulcrum in the middle). (a) False (b) True
19. 19.🌉 Which bridge type: “good for short gaps”? (a) beam bridge (b) arch bridge (c) suspension bridge
20. 20.🌉 A beam bridge 150 m long rests on the two river banks and on piers in between, making equal spans of 25 m. How many piers are there?
21. 21.🛠️ People need to cross a wide river. Which invention helps? (a) a bridge (b) a lift (c) a tunnel (d) a fridge
22. 22.🔍 Which is the odd one out? (a) a ceiling fan (b) a river (c) a rainbow (d) a coral reef
23. 23.True or false: a yoga mat needs a flexible material. (a) False (b) True
24. 24.⚖️ A seesaw balances. Kabir (420 N) sits 4 m from the pivot on one side; Meena (560 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
25. 25.🔍 Which is the odd one out? (a) aluminium (b) brass (c) plastic (d) copper
26. 26.♻️ A family used to throw away 7 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 7 weeks?
27. 27.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller
28. 28.💪 A bag has a mass of 1 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
29. 29.⚖️ A lever bar balances. The load is 300 N at 30 cm from the fulcrum. The effort is 180 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
30. 30.🏋️ Pushing a crate 2 m took 100 J of work. What force was used, in newtons?
31. 31.🔢 To follow the engineering design process, which comes first: “Imagine” or “Test”? (a) Test (b) Imagine
32. 32.🔺 Which strong shape does a fort gateway use? (a) arch (b) triangle (c) dome (d) beam
33. 33.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
34. 34.📐 On a plan, 1 cm stands for 10 m. A real bridge is 80 m long. How long is it on the plan, in centimetres?
35. 35.True or false: a stretched rubber band is in tension (pulled). (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a flagpole rope wheel (b) a crane hook block (c) a water tap handle (d) a well-bucket rope wheel
37. 37.True or false: a computer engineer builds hospital scanners. (a) False (b) True
38. 38.🔄 Which design-process step is it to make it better, retest? (a) Imagine (b) Improve (c) Create (d) Ask
39. 39.True or false: a bicycle is made by engineers. (a) True (b) False
40. 40.Which need does a bridge meet? (a) talk to someone far away (b) make water safe to drink (c) make power from sunlight (d) cross a wide river

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