Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 829 · 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.⚖️ A seesaw balances. Kabir (130 N) sits ? m from the pivot on one side; Asha (130 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
2. 2.🏋️ A smooth ramp is 8 m long and rises 2 m. What effort pushes a 200 N box up it, in newtons? (ideal ramp, no friction)
3. 3.🔍 Which is the odd one out? (a) making brittle joints (b) adding cross bracing (c) having a wide base (d) adding steel to concrete
4. 4.⚖️ On a seesaw, a heavier child should sit … (a) anywhere (b) farther from the pivot (c) closer to the pivot (d) on the pivot
5. 5.True or false: closing a drawer is a pull. (a) True (b) False
6. 6.⚖️ Which class of lever is a pair of scissors? (a) class 2 (b) class 3 (c) class 1
7. 7.🔄 Which design-process step is it to list the materials? (a) Ask (b) Create (c) Plan (d) Test
8. 8.🏋️ A force of 90 N pushes a cart 1 m along the floor. How much work is done, in joules?
9. 9.Which job does a mechanical engineer do? (a) keeps data safe online (b) designs a metro tunnel (c) plans a power grid (d) designs car engines
10. 10.♻️ Which energy source will never run out? (a) petrol (b) coal (c) sunlight (d) diesel
11. 11.💪 A force is a … (a) kind of colour (b) push or a pull (c) unit of time (d) type of sound
12. 12.True or false: a biomedical engineer designs a paint factory. (a) True (b) False
13. 13.Which of these is caused by muscular force? (a) pedalling a cycle (b) brakes stop a bicycle (c) shoes grip the floor (d) a rolling ball slows
14. 14.🔍 Which is the odd one out? (a) steel (b) brass (c) dry wood (d) aluminium
15. 15.⚖️ Which class of lever is your forearm? (a) class 1 (b) class 2 (c) class 3
16. 16.True or false: a table leg is in tension (pulled). (a) False (b) True
17. 17.🔢 To follow the engineering design process, which comes first: “Test” or “Plan”? (a) Test (b) Plan
18. 18.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 400 N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
19. 19.🌉 Which bridge type: “a rope bridge in hills”? (a) arch bridge (b) beam bridge (c) suspension bridge
20. 20.🏋️ A machine lifts a load of 120 N when you push with 40 N. What is its mechanical advantage (MA)?
21. 21.True or false: a chemical engineer plans a power grid. (a) False (b) True
22. 22.🛞 Friction acts … (a) with the motion (b) against the motion (c) only on ice (d) only upwards
23. 23.🔍 Which is the odd one out? (a) a truck loading ramp (b) a wheelchair ramp (c) a road up a hill (d) a crane hook block
24. 24.♻️ A project report has 32 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
25. 25.True or false: to find the limits is the Plan step. (a) False (b) True
26. 26.🔢 To follow the engineering design process, which is the FIRST step? (a) Create (b) Ask (c) Imagine (d) Improve
27. 27.True or false: petrol is a renewable energy source. (a) False (b) True
28. 28.True or false: a chemical engineer designs a flyover. (a) False (b) True
29. 29.True or false: a rainbow is made by engineers. (a) False (b) True
30. 30.🧑‍🔧 Which kind of engineer designs electric motors? (a) electrical (b) biomedical (c) aerospace (d) computer
31. 31.True or false: “the longest spans of all” is a suspension bridge. (a) False (b) True
32. 32.🛞 Is friction helpful or a problem here: machine parts heating up? (a) a problem (b) helpful
33. 33.🦺 In the workshop, is it safe to touch a hot glue tip? (a) safe (b) not safe
34. 34.True or false: to dream up possible fixes is the Plan step. (a) True (b) False
35. 35.🏋️ Work is done when a force moves something … (a) through a distance (b) without moving it (c) only upwards (d) very slowly
36. 36.💪 A cart is pulled to the right with 75 N and to the left with 85 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
37. 37.True or false: a temple column is in tension (pulled). (a) False (b) True
38. 38.True or false: to check a shelf is level, use a spirit level. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a wheelchair ramp (b) a seesaw (c) a nutcracker (d) a crowbar
40. 40.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 12 N, ice 4 N, a glass sheet 8 N, a carpet 9 N. Which surface gave the most friction? (a) a carpet (b) a glass sheet (c) sandpaper (d) ice

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