Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 943 · 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 class of lever is a pair of pliers? (a) class 2 (b) class 3 (c) class 1
2. 2.🔢 To follow the engineering design process, which comes first: “Plan” or “Improve”? (a) Plan (b) Improve
3. 3.📐 How many centimetres are in 1 metre? (a) 60 (b) 10 (c) 1000 (d) 100
4. 4.♻️ Which energy source will never run out? (a) diesel (b) sunlight (c) petrol (d) coal
5. 5.True or false: “a curve under the deck” is a suspension bridge. (a) False (b) True
6. 6.♻️ A family used to throw away 6 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 9 weeks?
7. 7.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 60 cm and the load at 0 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
8. 8.Which of these is found in nature? (a) a waterfall (b) a lift (c) a ceiling fan (d) a water filter
9. 9.🪢 A sign weighing 1200 N hangs from 6 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
10. 10.🛠️ Is a banyan tree made by engineers or found in nature? (a) found in nature (b) made by engineers
11. 11.🛠️ Is a bridge made by engineers or found in nature? (a) found in nature (b) made by engineers
12. 12.Which of these is a suspension bridge? (a) stones squeezed together (b) the simplest bridge (c) a log across a stream (d) deck hangs from cables
13. 13.🏚️ 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 20 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
14. 14.📐 Why do engineers use scale drawings? (a) to save ink only (b) big things fit on paper (c) to make them pretty (d) to hide sizes
15. 15.🦺 In the workshop, is it safe to touch a hot glue tip? (a) not safe (b) safe
16. 16.Which need does a tunnel meet? (a) talk to someone far away (b) carry many people far (c) see very tiny things (d) go through a mountain
17. 17.♻️ Reduce, reuse or recycle: melt cans into new cans? (a) reduce (b) recycle (c) reuse
18. 18.Which of these is reuse (use again)? (a) refill a water bottle (b) fix a dripping tap (c) carry a cloth bag (d) switch off unused lights
19. 19.💪 Two children push a box to the right, one with 30 N and the other with 50 N. What is the net (total) force on the box, in newtons?
20. 20.🔍 Which is the odd one out? (a) be under 30 cm tall (b) keep ice for 1 hour (c) lift a cup of water (d) float for 1 minute
21. 21.🪝 A pulley system has 3 rope sections holding up the load. To lift the load by 1 m, how many metres of rope must you pull?
22. 22.True or false: to dream up possible fixes is the Imagine step. (a) False (b) True
23. 23.🛠️ Is a lift made by engineers or found in nature? (a) made by engineers (b) found in nature
24. 24.True or false: a dam helps people talk to someone far away. (a) True (b) False
25. 25.Which job is a spirit level for? (a) grip and bend wire (b) tighten a nut (c) check a shelf is level (d) cut a wooden plank
26. 26.🤝 Is it good or poor teamwork to give kind feedback? (a) good teamwork (b) poor teamwork
27. 27.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) having a wide base (d) leaving out steel bars
28. 28.🪢 A stage stands on 8 identical legs and each leg is squeezed with 525 N. What is the total load on the stage, in newtons?
29. 29.🔍 Which is the odd one out? (a) a tyre with deep treads (b) a box pushed on carpet (c) powder on a carrom board (d) a rough doormat
30. 30.True or false: to change only one thing is poor testing. (a) True (b) False
31. 31.🤝 Why do engineers work in teams? (a) many skills and ideas (b) to argue more (c) to finish nothing (d) to work alone
32. 32.🔍 Which is the odd one out? (a) a window blind cord (b) the tip of a nail (c) a flagpole rope wheel (d) a crane hook block
33. 33.True or false: a mechanical engineer designs hearing aids. (a) True (b) False
34. 34.🏋️ In which unit is work measured? (a) newton (N) (b) joule (J) (c) watt hour (d) metre (m)
35. 35.🤝 In a design team, who cuts and joins parts? (a) materials manager (b) recorder (c) builder (d) tester
36. 36.💪 Which force is at work: a river flows downhill? (a) gravity (b) muscular force (c) friction (d) magnetic force
37. 37.Which of these is recycle (make new things)? (a) melt glass into new jars (b) refill a water bottle (c) reuse gift paper (d) give old books away
38. 38.True or false: to smooth a rough edge, use sandpaper. (a) False (b) True
39. 39.📐 On a plan, 1 cm stands for 5 m. A real bridge is 20 m long. How long is it on the plan, in centimetres?
40. 40.🔺 A frame shaped like a square is made of straws joined by loose pins, with 1 corner-to-corner brace. Is it rigid or wobbly? (a) wobbly (b) rigid

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