Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 450 · 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.⚖️ In a class 1 lever, what is in the middle? (a) nothing (b) the load (c) the fulcrum (d) the effort
2. 2.🏋️ Pushing a crate 3 m took 540 J of work. What force was used, in newtons?
3. 3.🧑‍🔧 Which kind of engineer designs bicycle gears? (a) civil (b) chemical (c) mechanical (d) biomedical
4. 4.🏋️ A smooth ramp is 6 m long and rises 2 m. What effort pushes a 2100 N box up it, in newtons? (ideal ramp, no friction)
5. 5.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 170 g and design C held 120 g. Which design was the strongest? (a) design A (b) design C (c) design B
6. 6.♻️ Which is the BEST order to think about waste? (a) burn, bury, forget (b) reduce, reuse, recycle (c) recycle, reuse, reduce (d) reuse, recycle, reduce
7. 7.True or false: a wheel on ball bearings gives less friction. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) use the same load (d) skip writing results
9. 9.🪢 Tension or compression: a tall bridge tower? (a) compression (b) tension
10. 10.📋 Your team’s budget is ₹19. You must buy one roll of tape for ₹10. Straws cost ₹1 each. What is the greatest number of straws you can buy?
11. 11.What does the recorder do? (a) writes down results (b) cuts and joins parts (c) checks the goals are met (d) collects the supplies
12. 12.🧪 In a fair test, how many things do you change at a time? (a) one (b) all of them (c) none (d) two
13. 13.Which of these is found in nature? (a) a seashell (b) a lift (c) a bicycle (d) a dam
14. 14.🔍 Which is the odd one out? (a) fit on a school desk (b) be under 30 cm tall (c) lift a cup of water (d) use only paper and tape
15. 15.🛠️ People need to make water safe to drink. Which invention helps? (a) a solar panel (b) a lift (c) a water filter (d) a bridge
16. 16.🔄 After testing, a design does not work well. What comes next? (a) Imagine (b) Improve (c) give up (d) Ask
17. 17.🏋️ A force of 80 N did 480 J of work. How many metres did the object move?
18. 18.📋 Criterion: the model bridge must hold at least 500 g. In the test it held 550 g. Does it meet the criterion? (a) Yes (b) No
19. 19.🧑‍🔧 Which kind of engineer runs a fertiliser plant? (a) civil (b) computer (c) chemical (d) biomedical
20. 20.🔺 Which shape keeps its shape best when its corners are pinned? (a) triangle (b) hexagon (c) rectangle (d) square
21. 21.True or false: to repeat each test is good testing. (a) True (b) False
22. 22.📐 On a plan, 1 cm stands for 20 m. A wall is 10 cm long on the plan. How long is the real wall, in metres?
23. 23.⚖️ A seesaw balances. Asha (280 N) sits 1 m from the pivot on one side; Zoya (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
24. 24.🔍 Which is the odd one out? (a) a waterfall (b) a mobile phone (c) a bicycle (d) a bridge
25. 25.🏋️ Mechanical advantage (MA) = … (a) load + effort (b) load ÷ effort (c) effort ÷ load (d) load × effort
26. 26.🔍 Which is the odd one out? (a) copper (b) plastic (c) rubber (d) glass
27. 27.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 0 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
28. 28.Which job does a chemical engineer do? (a) refines crude oil (b) keeps data safe online (c) designs a gearbox (d) designs satellites
29. 29.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a constraint (b) a criterion
30. 30.🧑‍🔧 Which kind of engineer designs a gearbox? (a) aerospace (b) civil (c) chemical (d) mechanical
31. 31.🔄 What is the FIRST step of the engineering design process? (a) Improve (b) Ask (c) Test (d) Create
32. 32.True or false: a wheelbarrow is a class 1 lever (fulcrum in the middle). (a) True (b) False
33. 33.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) biomedical (b) electrical (c) civil (d) aerospace
34. 34.Which of these needs a flexible material? (a) a spectacle lens (b) a hair band (c) a roof sheet (d) a window pane
35. 35.Which of these is an inclined plane? (a) a wheelchair ramp (b) a window blind cord (c) a wood screw (d) a seesaw
36. 36.🪝 A load of 120 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
37. 37.🌉 In a suspension bridge, the main cables are in … (a) friction (b) compression (c) no force (d) tension
38. 38.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) let adults use hot glue (b) touch a hot glue tip (c) run while holding tools (d) cut towards your hand
40. 40.Which of these happens in the Plan step? (a) build the model (b) try it out (c) redesign after testing (d) list the materials

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