Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 739 · 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.🤝 Why do engineers work in teams? (a) to work alone (b) to argue more (c) to finish nothing (d) many skills and ideas
2. 2.📐 On a plan, 1 cm stands for 2 m. A real bridge is 30 m long. How long is it on the plan, in centimetres?
3. 3.🏋️ A force of 40 N pushes a cart 8 m along the floor. How much work is done, in joules?
4. 4.🔄 Which design-process step is it to follow the plan to build? (a) Test (b) Ask (c) Create (d) Imagine
5. 5.⚙️ Which simple machine is a playground slide? (a) inclined plane (b) pulley (c) lever (d) wheel and axle
6. 6.🏋️ In which unit is work measured? (a) newton (N) (b) metre (m) (c) watt hour (d) joule (J)
7. 7.📋 For a model bridge challenge, is “roll at least 2 metres” a constraint or a criterion? (a) a criterion (b) a constraint
8. 8.🔄 In which step do engineers draw a labelled diagram? (a) Plan (b) Ask (c) Test (d) Improve
9. 9.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) using flexible joints (d) leaving out steel bars
10. 10.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) computer (b) civil (c) aerospace (d) chemical
11. 11.🛠️ People need to store water for summer. Which invention helps? (a) a lift (b) a fridge (c) a water filter (d) a dam
12. 12.🔍 Which is the odd one out? (a) leave tools on the floor (b) wear safety goggles (c) play near a moving drill (d) touch a hot glue tip
13. 13.🔍 Which is the odd one out? (a) a mountain (b) a water filter (c) a bridge (d) a satellite
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 130 g, design B held 180 g and design C held 230 g. Which design was the weakest? (a) design A (b) design B (c) design C
15. 15.🔺 One side of a straw bridge is a row of 13 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
16. 16.🔍 Which is the odd one out? (a) graphite (b) iron (c) brass (d) cotton cloth
17. 17.True or false: a playground slide is a wedge. (a) True (b) False
18. 18.🪝 A bucket weighing 100 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
19. 19.🌉 In a suspension bridge, the main cables are in … (a) tension (b) no force (c) compression (d) friction
20. 20.Which of these is recycle (make new things)? (a) use a jar as a pen stand (b) carry a cloth bag (c) plant in old tyres (d) melt cans into new cans
21. 21.🔧 Which tool would you use to grip and bend wire? (a) sandpaper (b) pliers (c) a hammer (d) a hand drill
22. 22.♻️ Which is the BEST order to think about waste? (a) burn, bury, forget (b) reuse, recycle, reduce (c) reduce, reuse, recycle (d) recycle, reuse, reduce
23. 23.🔍 Which is the odd one out? (a) repeat each test (b) use a new load each time (c) use the same load (d) measure the same way
24. 24.🤝 A team of 3 shares 12 equal jobs fairly. Each job takes 6 minutes. How many minutes does each person work?
25. 25.♻️ A family used to throw away 5 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 2 weeks?
26. 26.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
27. 27.True or false: a train helps people make water safe to drink. (a) False (b) True
28. 28.True or false: to ask who will use it is the Ask step. (a) False (b) True
29. 29.Which of these is in compression (pushed)? (a) a tow rope on a car (b) a swing chain (c) a stone in an arch (d) a hanging lamp chain
30. 30.True or false: an igloo uses triangles. (a) False (b) True
31. 31.🔺 One side of a straw bridge is a row of 8 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
32. 32.Which of these is a lever? (a) an axe blade (b) a water tap handle (c) a nutcracker (d) a truck loading ramp
33. 33.🔍 Which is the odd one out? (a) lift a cup of water (b) float for 1 minute (c) stand in a fan breeze (d) use only paper and tape
34. 34.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 50 cm and the load at 0 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
35. 35.🌉 A beam bridge is 405 m long. Piers split it into equal spans of 45 m. How many spans are there?
36. 36.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Test (b) Create (c) Imagine (d) Plan
37. 37.Which of these is found in nature? (a) a ceiling fan (b) a river (c) a water filter (d) a mobile phone
38. 38.🔍 Which is the odd one out? (a) a tug of war rope (b) a bridge pier (c) a tent guy rope (d) a suspension cable
39. 39.🪢 Tension or compression: a squeezed spring? (a) compression (b) tension
40. 40.Which of these is reuse (use again)? (a) plant in old tyres (b) fix a dripping tap (c) switch off unused lights (d) print on both sides

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