Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 355 · 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.True or false: an electrical engineer designs electric motors. (a) True (b) False
2. 2.⚖️ A seesaw balances. Arjun (? N) sits 2 m from the pivot on one side; Zoya (240 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
3. 3.♻️ Which energy source will never run out? (a) petrol (b) coal (c) diesel (d) sunlight
4. 4.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
5. 5.🪢 Compression is a force that … (a) pushes or squeezes (b) makes light (c) pulls or stretches (d) cools things
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 300 g. Which design was the weakest? (a) design A (b) design C (c) design B
7. 7.📐 A beam is 270 cm long. How long is it in metres? =
8. 8.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
9. 9.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
10. 10.🔍 Which is the odd one out? (a) copper (b) iron (c) clay pottery (d) brass
11. 11.True or false: a nutcracker is a lever. (a) False (b) True
12. 12.🪝 A load of 260 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
13. 13.True or false: a water filter helps people make water safe to drink. (a) True (b) False
14. 14.True or false: a beam balance is a class 3 lever (effort in the middle). (a) False (b) True
15. 15.🔄 What is the FIRST step of the engineering design process? (a) Create (b) Test (c) Ask (d) Improve
16. 16.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
17. 17.⚖️ Which class of lever is a nutcracker? (a) class 3 (b) class 1 (c) class 2
18. 18.⚙️ Most simple machines make work easier by letting us … (a) use a smaller force (b) make new energy (c) stop all friction (d) switch off gravity
19. 19.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
20. 20.⚖️ What is the pivot point of a lever called? (a) the effort (b) the fulcrum (c) the load (d) the axle
21. 21.⚖️ A seesaw balances. Asha (420 N) sits ? m from the pivot on one side; Kabir (560 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
22. 22.True or false: an igloo uses an arch. (a) True (b) False
23. 23.True or false: “deck hangs from cables” is a beam bridge. (a) True (b) False
24. 24.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
25. 25.True or false: a fixed pulley hangs on the rope loop. (a) False (b) True
26. 26.True or false: powder on a carrom board gives less friction. (a) False (b) True
27. 27.🔢 To follow the engineering design process, what comes right after “Imagine”? (a) Improve (b) Ask (c) Plan (d) Test
28. 28.True or false: “pushes out on its ends” is a suspension bridge. (a) False (b) True
29. 29.Which need does a water filter meet? (a) see very tiny things (b) make water safe to drink (c) make power from sunlight (d) go through a mountain
30. 30.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) electrical (b) biomedical (c) civil (d) aerospace
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 320 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
32. 32.🔍 Which is the odd one out? (a) finish in 40 minutes (b) use only paper and tape (c) roll at least 2 metres (d) spend at most ₹100
33. 33.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 70 N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
34. 34.📐 A beam is 200 cm long. How long is it in metres? =
35. 35.Which of these needs an electrical conductor? (a) a water tank (b) an umbrella cover (c) the core of a wire (d) a boat hull
36. 36.🤝 A team plans for 10 minutes, builds for 10 minutes and then tests for 25 minutes, one after another. How many minutes is that in all?
37. 37.📐 On a plan, 1 cm stands for 10 m. A real bridge is 110 m long. How long is it on the plan, in centimetres?
38. 38.True or false: to find the limits is the Improve step. (a) True (b) False
39. 39.Which of these happens in the Ask step? (a) think of wild ideas (b) follow the plan to build (c) make it better, retest (d) ask who will use it
40. 40.💪 A cart is pulled to the right with 70 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force

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