Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 886 · 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 design-process step is it to think of wild ideas? (a) Ask (b) Test (c) Imagine (d) Plan
2. 2.True or false: a seashell is found in nature. (a) True (b) False
3. 3.🌉 What holds up a long beam bridge in the middle? (a) nothing (b) balloons (c) piers (d) cables only
4. 4.🛞 More or less friction: a grippy rubber sole? (a) more friction (b) less friction
5. 5.🛠️ Is a coral reef made by engineers or found in nature? (a) made by engineers (b) found in nature
6. 6.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
7. 7.True or false: to run while holding tools is safe. (a) False (b) True
8. 8.🌉 Which bridge type: “a flat deck on piers”? (a) arch bridge (b) beam bridge (c) suspension bridge
9. 9.🪝 A pulley system has 1 rope section holding up the load. To lift the load by 2 m, how many metres of rope must you pull?
10. 10.🤝 A team of 4 shares 8 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
11. 11.📐 On a plan, 1 cm stands for 5 m. A real bridge is 85 m long. How long is it on the plan, in centimetres?
12. 12.🏋️ In which unit is work measured? (a) watt hour (b) joule (J) (c) newton (N) (d) metre (m)
13. 13.Which of these is found in nature? (a) a ceiling fan (b) a bridge (c) a rainbow (d) a railway track
14. 14.Which of these is a screw? (a) a bottle opener (b) a door stopper (c) a jar lid (d) a crowbar
15. 15.🪝 A well winch has a handle (wheel) of radius 12 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
16. 16.True or false: “finish in 40 minutes” is a criterion (a goal). (a) True (b) False
17. 17.True or false: an old stone bridge uses a beam. (a) True (b) False
18. 18.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) biomedical (b) aerospace (c) electrical (d) civil
19. 19.🌉 Which bridge type: “deck hangs from cables”? (a) suspension bridge (b) arch bridge (c) beam bridge
20. 20.📐 How many millimetres are in 1 centimetre? (a) 1000 (b) 5 (c) 10 (d) 100
21. 21.True or false: an electrical engineer designs a flyover. (a) False (b) True
22. 22.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) an apple falls down (c) rubbing hands warms them (d) brakes stop a bicycle
23. 23.True or false: to ask who will use it is the Test step. (a) True (b) False
24. 24.🔺 Why can an arch carry heavy loads? (a) it bends easily (b) it works in compression (c) it is very light (d) it is hollow
25. 25.Which of these is a beam bridge? (a) stones squeezed together (b) deck hangs from cables (c) good for short gaps (d) cables tied down at ends
26. 26.Which of these is caused by muscular force? (a) a thrown ball comes down (b) a compass needle turns (c) brakes stop a bicycle (d) lifting a school bag
27. 27.🪝 A load of 300 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
28. 28.🔄 Which design-process step is it to list the materials? (a) Plan (b) Imagine (c) Test (d) Ask
29. 29.📋 Constraint: the tower must be no taller than 50 cm. The team’s tower is 50 cm tall. Is it within the constraint? (a) No (b) Yes
30. 30.⚙️ Which simple machine is a chisel? (a) wedge (b) screw (c) wheel and axle (d) lever
31. 31.📋 Criteria are … (a) goals a design must meet (b) the team names (c) the tools you use (d) the limits on money
32. 32.⚖️ Which class of lever is a nutcracker? (a) class 1 (b) class 3 (c) class 2
33. 33.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) civil (b) chemical (c) computer (d) aerospace
34. 34.🪝 A winch has a wheel of radius 21 cm and an axle of radius 3 cm. What effort on the wheel lifts a 140 N bucket on the axle, in newtons? (ideal)
35. 35.True or false: a mechanical engineer refines crude oil. (a) False (b) True
36. 36.♻️ Reduce, reuse or recycle: melt glass into new jars? (a) reuse (b) reduce (c) recycle
37. 37.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) strengthen the weak part (b) choose and draw one (c) sketch three ideas (d) build it with straws
38. 38.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) gravity (d) wind
39. 39.♻️ Reduce, reuse or recycle: pulp old paper? (a) reduce (b) reuse (c) recycle
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A

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