Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 655 · 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 stage stands on 3 identical legs and each leg is squeezed with 450 N. What is the total load on the stage, in newtons?
2. 2.⚖️ Which class of lever is a crowbar? (a) class 2 (b) class 1 (c) class 3
3. 3.True or false: “the simplest bridge” is a beam bridge. (a) False (b) True
4. 4.♻️ Which energy source will never run out? (a) petrol (b) sunlight (c) diesel (d) coal
5. 5.⚖️ Which class of lever is a broom when sweeping? (a) class 2 (b) class 1 (c) class 3
6. 6.🤝 A team of 3 shares 9 equal jobs fairly. Each job takes 8 minutes. How many minutes does each person work?
7. 7.🌉 A beam bridge 70 m long is split by piers into 2 equal spans. How long is each span, in metres?
8. 8.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) civil (b) computer (c) chemical (d) biomedical
9. 9.True or false: to help a stuck teammate is good teamwork. (a) True (b) False
10. 10.Which of these happens in the Create step? (a) build the model (b) define the problem (c) dream up possible fixes (d) check it against goals
11. 11.🔧 Which tool would you use to turn a screw? (a) a spirit level (b) a screwdriver (c) a saw (d) sandpaper
12. 12.🔍 Which is the odd one out? (a) using a heavy roof (b) adding cross bracing (c) using flexible joints (d) adding steel to concrete
13. 13.True or false: to think of wild ideas is the Test step. (a) True (b) False
14. 14.Which of these is caused by magnetic force? (a) rain falls to the ground (b) rubbing hands warms them (c) a compass needle turns (d) a thrown ball comes down
15. 15.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to get reliable results (d) to use more paper
16. 16.Which of these is recycle (make new things)? (a) switch off unused lights (b) melt cans into new cans (c) fix a dripping tap (d) use a jar as a pen stand
17. 17.True or false: ocean wave energy is a non-renewable energy source. (a) True (b) False
18. 18.⚖️ In a class 1 lever, what is in the middle? (a) the load (b) the fulcrum (c) the effort (d) nothing
19. 19.True or false: to cut a wooden plank, use a hammer. (a) True (b) False
20. 20.🏚️ 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 60 cm tall on a 10 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
21. 21.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 30 cm tall. Is it within the constraint? (a) Yes (b) No
22. 22.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) floating (c) squeezed (compression) (d) not affected
23. 23.📐 On a plan, 1 cm stands for 2 m. A wall is 3 cm long on the plan. How long is the real wall, in metres?
24. 24.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) a broken part (d) the final product
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 320 g and design C held 370 g. Which design was the weakest? (a) design B (b) design C (c) design A
26. 26.🤝 Is it good or poor teamwork to ignore the team plan? (a) poor teamwork (b) good teamwork
27. 27.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
28. 28.🛠️ Engineers use maths and which other subject the most? (a) cooking (b) music (c) dance (d) science
29. 29.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 50 cm and the load at 30 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
30. 30.Which of these happens in the Plan step? (a) measure its performance (b) make it better, retest (c) pick the build order (d) find the limits
31. 31.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 3 N, a wooden plank 6 N, a carpet 10 N, sandpaper 12 N. Which surface gave the most friction? (a) sandpaper (b) a glass sheet (c) a carpet (d) a wooden plank
32. 32.♻️ Is coal a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
33. 33.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) what is for lunch? (b) who won the match? (c) why is the sky blue? (d) how can we build it?
34. 34.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
35. 35.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
36. 36.What does the team leader do? (a) runs the tests (b) puts the model together (c) cuts and joins parts (d) keeps the team on track
37. 37.🏋️ A force of 290 N pushes a cart 2 m along the floor. How much work is done, in joules?
38. 38.♻️ Is natural gas a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
39. 39.True or false: powder on a carrom board gives more friction. (a) False (b) True
40. 40.🪝 Fixed or movable pulley: which one only changes direction? (a) a movable pulley (b) a fixed pulley

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