Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 403 · 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 job does a chemical engineer do? (a) plans a dam (b) makes medicines in bulk (c) designs knee implants (d) plans a power grid
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
3. 3.📋 Your team’s budget is ₹75. You must buy one roll of tape for ₹10. Straws cost ₹5 each. What is the greatest number of straws you can buy?
4. 4.🦺 In the workshop, is it safe to cut towards your hand? (a) not safe (b) safe
5. 5.🌉 Which bridge type: “cables tied down at ends”? (a) beam bridge (b) suspension bridge (c) arch bridge
6. 6.📋 Criterion: the model bridge must hold at least 400 g. In the test it held 400 g. Does it meet the criterion? (a) Yes (b) No
7. 7.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 30 cm and the load at 10 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
8. 8.🔍 Which is the odd one out? (a) lift a cup of water (b) use only paper and tape (c) stand in a fan breeze (d) keep ice for 1 hour
9. 9.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to test ideas cheaply (c) to decorate a room (d) to sell them at once
10. 10.🪢 Compression is a force that … (a) cools things (b) pushes or squeezes (c) makes light (d) pulls or stretches
11. 11.🤝 Why do engineers work in teams? (a) to finish nothing (b) many skills and ideas (c) to argue more (d) to work alone
12. 12.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) chemical (b) civil (c) computer (d) biomedical
13. 13.True or false: pressing a doorbell is a push. (a) False (b) True
14. 14.📋 A constraint is … (a) a limit you must keep to (b) a final test (c) a goal for success (d) a kind of glue
15. 15.⚖️ Turning effect = force × … (a) time taken (b) colour of bar (c) mass of fulcrum (d) distance from fulcrum
16. 16.⚖️ A seesaw balances. Zoya (390 N) sits 1 m from the pivot on one side; Arjun (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
17. 17.True or false: a curved stone doorway uses an arch. (a) False (b) True
18. 18.🔢 To follow the engineering design process, which comes first: “Ask” or “Test”? (a) Test (b) Ask
19. 19.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is harder to tip over (d) it is colourful
20. 20.True or false: to dream up possible fixes is the Plan step. (a) False (b) True
21. 21.True or false: to help a stuck teammate is good teamwork. (a) False (b) True
22. 22.🪝 A winch has a wheel of radius 25 cm and an axle of radius 5 cm. What effort on the wheel lifts a 550 N bucket on the axle, in newtons? (ideal)
23. 23.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
24. 24.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
25. 25.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 4 N, sandpaper 7 N, ice 1 N, a glass sheet 2 N. How many newtons more were needed on sandpaper than on ice?
26. 26.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
27. 27.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) gravity (c) friction (d) magnetic force
28. 28.True or false: to pick the build order is the Plan step. (a) False (b) True
29. 29.🔢 To follow the engineering design process, what comes right after “Imagine”? (a) Create (b) Improve (c) Plan (d) Ask
30. 30.Which of these needs a waterproof material? (a) a car seat belt (b) an oven glove (c) a switch contact (d) an umbrella cover
31. 31.⚖️ A lever balances when … (a) the fulcrum moves (b) turning effects match (c) both weights are equal (d) the bar is short
32. 32.♻️ Which energy source will never run out? (a) coal (b) sunlight (c) petrol (d) diesel
33. 33.💪 A cart is pulled to the right with 55 N and to the left with 45 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
34. 34.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
35. 35.🦺 What protects your eyes when sawing or drilling? (a) safety goggles (b) nothing (c) a cap (d) sunglasses
36. 36.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
37. 37.True or false: an aerospace engineer designs factory machines. (a) True (b) False
38. 38.♻️ Reduce, reuse or recycle: refill a water bottle? (a) reduce (b) recycle (c) reuse
39. 39.⚙️ Which simple machine is a nut and bolt? (a) wheel and axle (b) screw (c) inclined plane (d) pulley
40. 40.⚖️ A seesaw balances. Kabir (160 N) sits 4 m from the pivot on one side; Zoya (640 N) sits ? m from the pivot on the other side. What is the missing distance in metres?

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