Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 50 · 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 of these is a suspension bridge? (a) deck hangs from cables (b) the simplest bridge (c) good for short gaps (d) stones squeezed together
2. 2.🔍 Which is the odd one out? (a) change lots at once (b) record every result (c) use the same load (d) repeat each test
3. 3.Which of these happens in the Ask step? (a) make a prototype (b) fix the weak part (c) find the limits (d) measure its performance
4. 4.True or false: a water filter is found in nature. (a) True (b) False
5. 5.🪝 Fixed or movable pulley: which one rises with the load? (a) a movable pulley (b) a fixed pulley
6. 6.⚖️ Which class of lever is a bottle opener? (a) class 1 (b) class 3 (c) class 2
7. 7.Which of these needs a transparent material? (a) a car windscreen (b) an umbrella cover (c) a boat hull (d) a roof sheet
8. 8.🪝 A bucket weighing 360 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
9. 9.True or false: a fishing rod is a class 3 lever (effort in the middle). (a) False (b) True
10. 10.True or false: a crowbar is a lever. (a) True (b) False
11. 11.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) twisted (b) not affected (c) squeezed (compression) (d) stretched (tension)
12. 12.🪢 Tension or compression: a temple column? (a) tension (b) compression
13. 13.🪝 A winch has a wheel of radius 6 cm and an axle of radius 2 cm. What effort on the wheel lifts a 90 N bucket on the axle, in newtons? (ideal)
14. 14.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) adding cross bracing (c) using flexible joints (d) adding steel to concrete
15. 15.Which of these happens in the Imagine step? (a) measure its performance (b) check it against goals (c) define the problem (d) think of wild ideas
16. 16.Which of these needs a waterproof material? (a) a roof sheet (b) an oven glove (c) a car seat belt (d) a skipping rope
17. 17.True or false: a water filter helps people make water safe to drink. (a) True (b) False
18. 18.True or false: a seesaw is a lever. (a) False (b) True
19. 19.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) chemical (b) computer (c) civil (d) aerospace
20. 20.🔢 To follow the engineering design process, which is the LAST step? (a) Plan (b) Test (c) Create (d) Improve
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 190 g and design C held 240 g. Which design was the weakest? (a) design A (b) design C (c) design B
22. 22.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
23. 23.🔍 Which is the odd one out? (a) repeat each test (b) skip writing results (c) guess, do not measure (d) change lots at once
24. 24.⚖️ A lever bar balances. The load is 720 N at ? cm from the fulcrum. The effort is 450 N at 80 cm from the fulcrum on the other side. What is the missing distance in centimetres?
25. 25.True or false: a movable pulley only changes direction. (a) True (b) False
26. 26.True or false: “use at most 20 straws” is a criterion (a goal). (a) True (b) False
27. 27.🔄 After testing, a design does not work well. What comes next? (a) Ask (b) Improve (c) give up (d) Imagine
28. 28.🤝 Is it good or poor teamwork to own up to a mistake? (a) poor teamwork (b) good teamwork
29. 29.🏋️ A force of 310 N did 3100 J of work. How many metres did the object move?
30. 30.🤝 Is it good or poor teamwork to talk over others? (a) poor teamwork (b) good teamwork
31. 31.🤝 In a design team, who keeps the design notes? (a) team leader (b) tester (c) builder (d) recorder
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 300 g and design C held 400 g. Which design was the weakest? (a) design B (b) design A (c) design C
33. 33.🪝 Fixed or movable pulley: which one needs effort = load? (a) a movable pulley (b) a fixed pulley
34. 34.🪢 Which material is good in tension but useless in compression? (a) a stone (b) a brick (c) a rope (d) a concrete block
35. 35.🧑‍🔧 Which kind of engineer wires a new building? (a) civil (b) electrical (c) chemical (d) biomedical
36. 36.⚖️ In a class 2 lever, what is in the middle? (a) the fulcrum (b) the effort (c) the axle (d) the load
37. 37.🔢 To follow the engineering design process, what comes right after “Imagine”? (a) Test (b) Plan (c) Create (d) Ask
38. 38.🛠️ Is a river made by engineers or found in nature? (a) found in nature (b) made by engineers
39. 39.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 4 N, a glass sheet 7 N, a carpet 9 N, sandpaper 10 N. Which surface gave the most friction? (a) a glass sheet (b) a carpet (c) sandpaper (d) ice
40. 40.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding steel to concrete (c) keeping a simple shape (d) using flexible joints

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