Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 625 · 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 property matters most for a boat hull? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
2. 2.🧱 Which property matters most for a window pane? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
3. 3.🏋️ A force of 80 N pushes a cart 9 m along the floor. How much work is done, in joules?
4. 4.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🌉 A beam bridge 250 m long rests on the two river banks and on piers in between, making equal spans of 25 m. How many piers are there?
6. 6.🔍 Which is the odd one out? (a) a tow rope on a car (b) a squeezed spring (c) a suspension cable (d) a tug of war rope
7. 7.🤝 A team plans for 55 minutes, builds for 45 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
8. 8.⚖️ On a seesaw, a heavier child should sit … (a) closer to the pivot (b) farther from the pivot (c) on the pivot (d) anywhere
9. 9.🏋️ A force of 380 N pushes a cart 5 m along the floor. How much work is done, in joules?
10. 10.Which of these is caused by friction? (a) rubbing hands warms them (b) rain falls to the ground (c) squeezing a lemon (d) a compass needle turns
11. 11.Which job does an electrical engineer do? (a) wires a new building (b) designs a gearbox (c) refines crude oil (d) builds a website
12. 12.📋 For a model bridge challenge, is “use at most 20 straws” a constraint or a criterion? (a) a constraint (b) a criterion
13. 13.🪢 A stage stands on 7 identical legs and each leg is squeezed with 950 N. What is the total load on the stage, in newtons?
14. 14.What does the recorder do? (a) runs the tests (b) checks the goals are met (c) writes down results (d) tracks what is used up
15. 15.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 10 cm and the load at 50 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
16. 16.🌉 What holds up a long beam bridge in the middle? (a) nothing (b) piers (c) balloons (d) cables only
17. 17.True or false: a movable pulley needs effort = load. (a) True (b) False
18. 18.🤝 In a design team, who keeps the team on track? (a) team leader (b) tester (c) builder (d) materials manager
19. 19.True or false: “good for short gaps” is a beam bridge. (a) False (b) True
20. 20.Which of these is reduce (use less)? (a) melt cans into new cans (b) refill a water bottle (c) print on both sides (d) reuse gift paper
21. 21.What does the materials manager do? (a) puts the model together (b) tracks what is used up (c) shares out the jobs (d) keeps the design notes
22. 22.⚖️ Which class of lever is your forearm? (a) class 2 (b) class 3 (c) class 1
23. 23.Which of these needs a waterproof material? (a) a boat hull (b) a car seat belt (c) a skipping rope (d) a plug pin
24. 24.🔺 Which shape keeps its shape best when its corners are pinned? (a) square (b) hexagon (c) rectangle (d) triangle
25. 25.⚖️ A seesaw balances. Arjun (600 N) sits 1 m from the pivot on one side; Asha (? N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
26. 26.🤝 In a design team, who shares out the jobs? (a) team leader (b) recorder (c) tester (d) builder
27. 27.🛞 More or less friction: a smooth steel slide? (a) less friction (b) more friction
28. 28.Which job does a chemical engineer do? (a) builds hospital scanners (b) plans a dam (c) designs aeroplane wings (d) designs a paint factory
29. 29.🧪 What is a prototype? (a) the final product (b) a broken part (c) an early test model (d) a sales poster
30. 30.🌉 Which bridge type: “a log across a stream”? (a) suspension bridge (b) arch bridge (c) beam bridge
31. 31.True or false: a beam balance is a class 1 lever (fulcrum in the middle). (a) False (b) True
32. 32.True or false: a tow rope on a car is in tension (pulled). (a) False (b) True
33. 33.🔄 Which design-process step is it to build the model? (a) Ask (b) Test (c) Create (d) Plan
34. 34.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
35. 35.🔍 Which is the odd one out? (a) using a light roof (b) keeping a simple shape (c) leaving out steel bars (d) having a wide base
36. 36.🔍 Which is the odd one out? (a) chalk on a gym bar (b) skating on ice (c) sand on a slippery path (d) a tyre with deep treads
37. 37.True or false: sand on a slippery path gives more friction. (a) True (b) False
38. 38.🔄 Which design-process step is it to make it better, retest? (a) Ask (b) Test (c) Imagine (d) Improve
39. 39.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
40. 40.📋 For a model bridge challenge, is “hold up 500 g” a constraint or a criterion? (a) a constraint (b) a criterion

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