Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 19 · 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 force of 230 N pushes a cart 5 m along the floor. How much work is done, in joules?
2. 2.True or false: a fridge helps people keep food fresh longer. (a) True (b) False
3. 3.🔄 Which design-process step is it to check it against goals? (a) Plan (b) Improve (c) Create (d) Test
4. 4.Which job does a chemical engineer do? (a) designs power lines (b) designs hearing aids (c) runs a fertiliser plant (d) designs aeroplane wings
5. 5.True or false: flowing river water is a non-renewable energy source. (a) True (b) False
6. 6.🧑‍🔧 Which kind of engineer builds hospital scanners? (a) electrical (b) biomedical (c) mechanical (d) aerospace
7. 7.⚖️ A lever bar balances. The load is 270 N at ? cm from the fulcrum. The effort is 60 N at 90 cm from the fulcrum on the other side. What is the missing distance in centimetres?
8. 8.⚖️ A seesaw balances. Kabir (300 N) sits 4 m from the pivot on one side; Ravi (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
9. 9.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🔄 What is the FIRST step of the engineering design process? (a) Ask (b) Test (c) Create (d) Improve
11. 11.📋 Criterion: the model bridge must hold at least 500 g. In the test it held 550 g. Does it meet the criterion? (a) No (b) Yes
12. 12.True or false: “deck hangs from cables” is an arch bridge. (a) False (b) True
13. 13.⚖️ A seesaw balances. Asha (110 N) sits 1 m from the pivot on one side; Arjun (110 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
14. 14.🪝 Fixed or movable pulley: which one halves the effort? (a) a fixed pulley (b) a movable pulley
15. 15.📐 On a plan, 1 cm stands for 5 m. A wall is 18 cm long on the plan. How long is the real wall, in metres?
16. 16.Which of these is made by engineers? (a) a rainbow (b) a waterfall (c) a coral reef (d) a mobile phone
17. 17.🔍 Which is the odd one out? (a) a railway track (b) a ceiling fan (c) a satellite (d) a seashell
18. 18.True or false: a rough doormat gives more friction. (a) False (b) True
19. 19.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
20. 20.🔺 Which shape keeps its shape best when its corners are pinned? (a) triangle (b) rectangle (c) hexagon (d) square
21. 21.🔄 Which design-process step is it to try it out? (a) Create (b) Imagine (c) Test (d) Plan
22. 22.♻️ A sustainable design … (a) protects the future (b) wastes water (c) uses the most plastic (d) lasts one day
23. 23.🪝 Fixed or movable pulley: which one stays in one place? (a) a movable pulley (b) a fixed pulley
24. 24.🤝 How do engineers share a design with others? (a) clear labelled sketches (b) secret notes (c) only talking fast (d) no drawings at all
25. 25.⚖️ Which class of lever is a broom when sweeping? (a) class 3 (b) class 1 (c) class 2
26. 26.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) biomedical (b) chemical (c) computer (d) civil
27. 27.🔧 Which tool would you use to cut a wooden plank? (a) a saw (b) a spirit level (c) a screwdriver (d) sandpaper
28. 28.🛞 Is friction helpful or a problem here: dragging a heavy box? (a) helpful (b) a problem
29. 29.🧑‍🔧 Which kind of engineer designs electric motors? (a) civil (b) mechanical (c) computer (d) electrical
30. 30.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.⚖️ A lever bar balances. The load is 200 N at 30 cm from the fulcrum. The effort is ? N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
32. 32.True or false: a lift helps people reach a top floor fast. (a) False (b) True
33. 33.🔺 A flat frame has 9 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
34. 34.Which of these happens in the Plan step? (a) draw a labelled diagram (b) measure its performance (c) make a prototype (d) think of wild ideas
35. 35.♻️ Reduce, reuse or recycle: refill a water bottle? (a) reduce (b) recycle (c) reuse
36. 36.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 3 (b) class 1 (c) class 2
37. 37.Which of these is a beam bridge? (a) tall towers hold cables (b) deck hangs from cables (c) a flat deck on piers (d) cables tied down at ends
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 200 g and design C held 300 g. Which design was the weakest? (a) design B (b) design C (c) design A
39. 39.⚖️ In a class 1 lever, what is in the middle? (a) the load (b) the fulcrum (c) nothing (d) the effort
40. 40.🛞 Is friction helpful or a problem here: tyres wearing down? (a) a problem (b) helpful

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids