Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 481 · 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 is pliers for? (a) make a hole in wood (b) check a shelf is level (c) grip and bend wire (d) drive in a nail
2. 2.🛞 More or less friction: a box pushed on carpet? (a) less friction (b) more friction
3. 3.True or false: a movable pulley hangs on the rope loop. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) tie back long hair (b) play near a moving drill (c) let adults use hot glue (d) wear safety goggles
5. 5.🛞 Is friction helpful or a problem here: striking a matchstick? (a) a problem (b) helpful
6. 6.🛞 More or less friction: powder on a carrom board? (a) more friction (b) less friction
7. 7.📐 On a plan, 1 cm stands for 10 m. A real bridge is 150 m long. How long is it on the plan, in centimetres?
8. 8.🌉 A beam bridge 120 m long is split by piers into 12 equal spans. How long is each span, in metres?
9. 9.🔍 Which is the odd one out? (a) finish in 40 minutes (b) spend at most ₹100 (c) fit on a school desk (d) carry 10 coins
10. 10.🔄 What is the FIRST step of the engineering design process? (a) Create (b) Ask (c) Improve (d) Test
11. 11.Which need does a solar panel meet? (a) see very tiny things (b) carry many people far (c) make power from sunlight (d) reach a top floor fast
12. 12.🪝 A bucket weighing 170 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
13. 13.🤝 In a design team, who runs the tests? (a) recorder (b) tester (c) builder (d) team leader
14. 14.🤝 A team plans for 60 minutes, builds for 30 minutes and then tests for 20 minutes, one after another. How many minutes is that in all?
15. 15.True or false: a tug of war is a pull. (a) False (b) True
16. 16.True or false: “finish in 40 minutes” is a criterion (a goal). (a) True (b) False
17. 17.⚖️ A lever bar balances. The load is 480 N at 50 cm from the fulcrum. The effort is ? N at 80 cm from the fulcrum on the other side. What is the missing force in newtons?
18. 18.True or false: a plank over a drain uses a beam. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) cut towards your hand (b) leave tools on the floor (c) use a cracked tool (d) carry scissors closed
20. 20.🪝 Fixed or movable pulley: which one rises with the load? (a) a fixed pulley (b) a movable pulley
21. 21.🔍 Which is the odd one out? (a) a box pushed on carpet (b) a tyre with deep treads (c) sand on a slippery path (d) skating on ice
22. 22.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
23. 23.🏋️ A machine lifts a load of 40 N when you push with 10 N. What is its mechanical advantage (MA)?
24. 24.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
25. 25.🏋️ A force of 130 N did 650 J of work. How many metres did the object move?
26. 26.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
27. 27.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) stop it moving (d) change its colour
28. 28.🌉 A beam bridge 45 m long is split by piers into 3 equal spans. How long is each span, in metres?
29. 29.🔍 Which is the odd one out? (a) a swing chain (b) a tug of war rope (c) a stretched rubber band (d) a squeezed spring
30. 30.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
31. 31.⚖️ In a class 2 lever, what is in the middle? (a) the fulcrum (b) the axle (c) the load (d) the effort
32. 32.Which of these is a suspension bridge? (a) deck hangs from cables (b) a log across a stream (c) stones squeezed together (d) a curve under the deck
33. 33.Which of these uses triangles? (a) an igloo (b) a curved stone doorway (c) an old stone bridge (d) a crane arm
34. 34.🧑‍🔧 Which kind of engineer designs car engines? (a) computer (b) electrical (c) mechanical (d) chemical
35. 35.True or false: a biomedical engineer designs knee implants. (a) True (b) False
36. 36.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
37. 37.🪢 Tension or compression: a brick at a wall base? (a) compression (b) tension
38. 38.🏋️ Pushing a crate 5 m took 2500 J of work. What force was used, in newtons?
39. 39.⚖️ Which class of lever is a pair of scissors? (a) class 3 (b) class 2 (c) class 1
40. 40.♻️ A school bench is made from 350 recycled plastic bottles. How many benches can be made from 1400 bottles?

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