Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 202 · 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 is found in nature? (a) a coral reef (b) a mobile phone (c) a railway track (d) a water filter
2. 2.💪 A cart is pulled to the right with 70 N and to the left with 70 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
3. 3.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 160 N at 60 cm from the fulcrum on the other side. What is the missing force in newtons?
4. 4.🔺 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?
5. 5.True or false: a waterfall is made by engineers. (a) False (b) True
6. 6.True or false: a car seat belt needs a waterproof material. (a) True (b) False
7. 7.♻️ Is biogas from waste a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
8. 8.🤝 Is it good or poor teamwork to laugh at ideas? (a) good teamwork (b) poor teamwork
9. 9.🌉 Which bridge type: “stones squeezed together”? (a) beam bridge (b) suspension bridge (c) arch bridge
10. 10.🔺 Why can an arch carry heavy loads? (a) it is hollow (b) it is very light (c) it bends easily (d) it works in compression
11. 11.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) measure the same way (d) guess, do not measure
12. 12.True or false: a table leg is in tension (pulled). (a) True (b) False
13. 13.📋 Criteria are … (a) the team names (b) goals a design must meet (c) the tools you use (d) the limits on money
14. 14.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) who won the match? (b) how can we build it? (c) why is the sky blue? (d) what is for lunch?
15. 15.Which of these is in tension (pulled)? (a) a pillar under a roof (b) a table leg (c) a temple column (d) a hanging lamp chain
16. 16.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) transparent (d) waterproof
17. 17.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) repeat each test (b) change lots at once (c) skip writing results (d) hide a failed test
19. 19.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) squeezed (compression) (c) floating (d) not affected
20. 20.⚖️ A lever bar balances. The load is ? N at 30 cm from the fulcrum. The effort is 180 N at 80 cm from the fulcrum on the other side. What is the missing force in newtons?
21. 21.🌉 A beam bridge 330 m long is split by piers into 11 equal spans. How long is each span, in metres?
22. 22.🌉 In a stone arch bridge, the stones are in … (a) no force (b) compression (c) tension (d) friction
23. 23.🤝 Why do engineers work in teams? (a) to argue more (b) to work alone (c) many skills and ideas (d) to finish nothing
24. 24.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) chemical (b) computer (c) aerospace (d) civil
25. 25.True or false: to brainstorm many ideas is the Improve step. (a) False (b) True
26. 26.🌉 Which bridge type: “tall towers hold cables”? (a) beam bridge (b) suspension bridge (c) arch bridge
27. 27.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 1 (b) class 3 (c) class 2
28. 28.⚙️ Which simple machine is the tip of a nail? (a) wheel and axle (b) pulley (c) wedge (d) inclined plane
29. 29.Which of these is made by engineers? (a) a water filter (b) a rainbow (c) a river (d) a waterfall
30. 30.Which job does a chemical engineer do? (a) designs artificial limbs (b) designs a paint factory (c) designs school networks (d) designs a metro tunnel
31. 31.♻️ A school bench is made from 450 recycled plastic bottles. How many benches can be made from 5400 bottles?
32. 32.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
33. 33.🔍 Which is the odd one out? (a) change lots at once (b) change only one thing (c) record every result (d) use the same load
34. 34.True or false: a pair of pliers is a class 2 lever (load in the middle). (a) True (b) False
35. 35.🏋️ A smooth ramp is 6 m long and rises 3 m. What effort pushes a 1600 N box up it, in newtons? (ideal ramp, no friction)
36. 36.True or false: “a log across a stream” is an arch bridge. (a) False (b) True
37. 37.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
38. 38.🧱 Which property matters most for a yoga mat? (a) flexible (b) transparent (c) heat insulator (d) waterproof
39. 39.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) read the challenge rules (b) strengthen the weak part
40. 40.📋 For a model bridge challenge, is “spend at most ₹100” a constraint or a criterion? (a) a criterion (b) a constraint

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