Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 283 · 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 team plans for 20 minutes, builds for 45 minutes and then tests for 25 minutes, one after another. How many minutes is that in all?
2. 2.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a fixed pulley (b) a movable pulley
3. 3.🛠️ What does an engineer mainly do? (a) only paints pictures (b) sells tickets (c) grows crops (d) designs useful solutions
4. 4.True or false: a fixed pulley needs effort = load. (a) False (b) True
5. 5.True or false: to tie back long hair is not safe. (a) False (b) True
6. 6.🌉 Which bridge type: “a log across a stream”? (a) beam bridge (b) suspension bridge (c) arch bridge
7. 7.🛞 Why are tyres made with deep treads? (a) to save rubber (b) to look nice (c) to go slower (d) to grip the road
8. 8.🪝 A winch has a wheel of radius 6 cm and an axle of radius 2 cm. What effort on the wheel lifts a 570 N bucket on the axle, in newtons? (ideal)
9. 9.🔢 To follow the engineering design process, which is the FIRST step? (a) Improve (b) Plan (c) Ask (d) Imagine
10. 10.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, it works (b) no, it breaks a limit (c) yes, always (d) only if it is red
11. 11.⚖️ On a seesaw, a heavier child should sit … (a) farther from the pivot (b) closer to the pivot (c) on the pivot (d) anywhere
12. 12.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a constraint (b) a criterion
13. 13.True or false: to check a shelf is level, use a spirit level. (a) True (b) False
14. 14.Which of these is a screw? (a) a knife edge (b) a playground slide (c) a flagpole rope wheel (d) a jar lid
15. 15.Which of these uses a beam? (a) a truss bridge side (b) a fort gateway (c) a plank over a drain (d) a bicycle frame
16. 16.Which of these is in tension (pulled)? (a) a pillar under a roof (b) a temple column (c) a stone in an arch (d) a suspension cable
17. 17.True or false: a biomedical engineer builds hospital scanners. (a) True (b) False
18. 18.Which of these is in tension (pulled)? (a) a brick at a wall base (b) a stretched rubber band (c) a tall bridge tower (d) a temple column
19. 19.🔍 Which is the odd one out? (a) a hanging lamp chain (b) a swing chain (c) a temple column (d) a crane lifting cable
20. 20.Which of these is reuse (use again)? (a) carry a cloth bag (b) turn plastic into tiles (c) plant in old tyres (d) melt cans into new cans
21. 21.⚖️ A lever bar balances. The load is 560 N at 30 cm from the fulcrum. The effort is 210 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
22. 22.🔺 One side of a straw bridge is a row of 5 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
23. 23.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 12 cm long in the drawing. How long is the real car, in centimetres?
24. 24.True or false: to cut towards your hand is not safe. (a) False (b) True
25. 25.Which of these is made by engineers? (a) a mountain (b) a satellite (c) a waterfall (d) a seashell
26. 26.🔢 To follow the engineering design process, what comes right after “Test”? (a) Plan (b) Improve (c) Create (d) Ask
27. 27.📋 Criterion: the model bridge must hold at least 700 g. In the test it held 600 g. Does it meet the criterion? (a) Yes (b) No
28. 28.🌉 In a suspension bridge, the main cables are in … (a) friction (b) tension (c) compression (d) no force
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 10 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
30. 30.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
31. 31.🤝 A team plans for 45 minutes, builds for 20 minutes and then tests for 30 minutes, one after another. How many minutes is that in all?
32. 32.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) aerospace (b) civil (c) electrical (d) biomedical
33. 33.🔄 Which design-process step is it to make it better, retest? (a) Imagine (b) Test (c) Improve (d) Ask
34. 34.Which of these is an inclined plane? (a) a knife edge (b) a truck loading ramp (c) a bottle cap (d) a crane hook block
35. 35.True or false: to use the same load is poor testing. (a) False (b) True
36. 36.⚖️ In a class 3 lever, what is in the middle? (a) the load (b) the effort (c) the pulley (d) the fulcrum
37. 37.🪝 A pulley system lifts a 240 N load with an effort of 60 N. What is its mechanical advantage (MA)?
38. 38.⚙️ A screw is really … (a) a tiny pulley (b) a bent lever (c) a kind of wheel (d) a ramp wrapped round
39. 39.🪢 Tension or compression: a stone in an arch? (a) compression (b) tension
40. 40.🏋️ A force of 330 N did 990 J of work. How many metres did the object move?

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