Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 801 · 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 is the odd one out? (a) a grippy rubber sole (b) a tyre with deep treads (c) sand on a slippery path (d) powder on a carrom board
2. 2.📐 Why do engineers use scale drawings? (a) to hide sizes (b) to make them pretty (c) big things fit on paper (d) to save ink only
3. 3.True or false: petrol is a renewable energy source. (a) False (b) True
4. 4.⚖️ A lever bar balances. The load is 420 N at 30 cm from the fulcrum. The effort is ? N at 70 cm from the fulcrum on the other side. What is the missing force in newtons?
5. 5.🤝 A teammate’s idea seems odd. What should you do first? (a) ignore it (b) walk away (c) laugh at it (d) listen and ask why
6. 6.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
7. 7.True or false: to check a shelf is level, use a hammer. (a) True (b) False
8. 8.True or false: a banyan tree is found in nature. (a) True (b) False
9. 9.True or false: natural gas is a renewable energy source. (a) False (b) True
10. 10.🧱 Which property matters most for a raincoat? (a) heat insulator (b) transparent (c) flexible (d) waterproof
11. 11.🔢 To follow the engineering design process, what comes right after “Test”? (a) Improve (b) Ask (c) Plan (d) Imagine
12. 12.True or false: ocean wave energy is a non-renewable energy source. (a) False (b) True
13. 13.True or false: an electrical engineer designs car engines. (a) True (b) False
14. 14.True or false: to use a cracked tool is safe. (a) True (b) False
15. 15.🏋️ A force of 400 N did 2800 J of work. How many metres did the object move?
16. 16.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
17. 17.🪝 Fixed or movable pulley: which one only changes direction? (a) a fixed pulley (b) a movable pulley
18. 18.🏋️ A machine lifts a load of 600 N when you push with 150 N. What is its mechanical advantage (MA)?
19. 19.🔺 Why can an arch carry heavy loads? (a) it is hollow (b) it works in compression (c) it bends easily (d) it is very light
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 240 g and design C held 290 g. Which design was the weakest? (a) design A (b) design C (c) design B
21. 21.⚙️ Which simple machine is a well-bucket rope wheel? (a) pulley (b) screw (c) wheel and axle (d) lever
22. 22.🧪 What is a prototype? (a) the final product (b) a sales poster (c) an early test model (d) a broken part
23. 23.⚖️ Which class of lever is your forearm? (a) class 2 (b) class 1 (c) class 3
24. 24.True or false: to repeat each test is good testing. (a) True (b) False
25. 25.🛠️ People need to talk to someone far away. Which invention helps? (a) a water filter (b) a telephone (c) a lift (d) a dam
26. 26.📋 For a model bridge challenge, is “stand in a fan breeze” a constraint or a criterion? (a) a criterion (b) a constraint
27. 27.Which of these is reduce (use less)? (a) use a jar as a pen stand (b) plant in old tyres (c) pulp old paper (d) carry a cloth bag
28. 28.♻️ A school bench is made from 500 recycled plastic bottles. How many benches can be made from 5500 bottles?
29. 29.True or false: a box pushed on carpet gives less friction. (a) True (b) False
30. 30.🧑‍🔧 Which kind of engineer designs knee implants? (a) mechanical (b) biomedical (c) electrical (d) computer
31. 31.Which job does a mechanical engineer do? (a) designs a gearbox (b) designs aeroplane wings (c) designs electric motors (d) designs school networks
32. 32.True or false: to measure an angle, use a protractor. (a) False (b) True
33. 33.🛞 Is friction helpful or a problem here: tyres wearing down? (a) helpful (b) a problem
34. 34.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to test ideas cheaply (d) to avoid testing
35. 35.🔢 To follow the engineering design process, which is the FIRST step? (a) Ask (b) Plan (c) Test (d) Imagine
36. 36.True or false: sunlight is a non-renewable energy source. (a) True (b) False
37. 37.🏋️ A machine lifts a load of 240 N when you push with 60 N. What is its mechanical advantage (MA)?
38. 38.⚙️ Most simple machines make work easier by letting us … (a) make new energy (b) switch off gravity (c) stop all friction (d) use a smaller force
39. 39.🔍 Which is the odd one out? (a) a claw hammer on a nail (b) a jar lid (c) a nutcracker (d) a bottle opener
40. 40.🛠️ What does an engineer mainly do? (a) only paints pictures (b) designs useful solutions (c) sells tickets (d) grows crops

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