Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 234 · 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.🔄 What is the FIRST step of the engineering design process? (a) Test (b) Create (c) Improve (d) Ask
2. 2.Which job does a chemical engineer do? (a) runs a fertiliser plant (b) designs knee implants (c) designs a metro tunnel (d) wires a new building
3. 3.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a constraint (b) a criterion
4. 4.📋 Criterion: the model bridge must hold at least 500 g. In the test it held 400 g. Does it meet the criterion? (a) Yes (b) No
5. 5.🛞 More or less friction: sand on a slippery path? (a) less friction (b) more friction
6. 6.Which of these is reuse (use again)? (a) buy less packaging (b) melt glass into new jars (c) give old books away (d) fix a dripping tap
7. 7.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 8 N, ice 1 N, a wooden plank 2 N, a carpet 5 N. How many newtons more were needed on sandpaper than on ice?
8. 8.Which need does a water filter meet? (a) make power from sunlight (b) keep food fresh longer (c) make water safe to drink (d) go through a mountain
9. 9.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
10. 10.🛠️ Is a mountain made by engineers or found in nature? (a) found in nature (b) made by engineers
11. 11.♻️ A school bench is made from 450 recycled plastic bottles. How many benches can be made from 1800 bottles?
12. 12.🪝 Fixed or movable pulley: which one rises with the load? (a) a fixed pulley (b) a movable pulley
13. 13.🔄 Which design-process step is it to pick the build order? (a) Plan (b) Test (c) Ask (d) Improve
14. 14.True or false: a chemical engineer designs hearing aids. (a) True (b) False
15. 15.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) stop it moving (d) change its colour
16. 16.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a wooden plank 3 N, a carpet 7 N, sandpaper 10 N. How many newtons more were needed on sandpaper than on ice?
17. 17.🛠️ People need to go through a mountain. Which invention helps? (a) a fridge (b) a solar panel (c) a lift (d) a tunnel
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 220 g and design C held 120 g. Which design was the weakest? (a) design C (b) design B (c) design A
19. 19.Which of these is a suspension bridge? (a) a log across a stream (b) deck hangs from cables (c) good for short gaps (d) the simplest bridge
20. 20.🔺 Which strong shape does a truss bridge side use? (a) triangle (b) dome (c) arch (d) beam
21. 21.📐 On a plan, 1 cm stands for 5 m. A real bridge is 100 m long. How long is it on the plan, in centimetres?
22. 22.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
23. 23.🏚️ 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 90 cm tall on a 30 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
24. 24.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
25. 25.🪢 A sign weighing 140 N hangs from 2 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
26. 26.🔍 Which is the odd one out? (a) a tow rope on a car (b) a tug of war rope (c) a table leg (d) a stretched rubber band
27. 27.⚙️ A wedge is … (a) a wheel on a rod (b) a bar on a pivot (c) two ramps back to back (d) a rope on a wheel
28. 28.🦺 How should you carry scissors? (a) while running (b) points down, closed (c) points up, open (d) by the blades
29. 29.🏋️ A force of 290 N pushes a cart 2 m along the floor. How much work is done, in joules?
30. 30.🏋️ A longer ramp to the same height needs … (a) the same effort (b) less effort (c) no effort (d) more effort
31. 31.🛞 How can we reduce friction in a machine? (a) make parts rough (b) add sand (c) oil the moving parts (d) press parts harder
32. 32.Which of these is a wedge? (a) a window blind cord (b) a knife edge (c) a crowbar (d) a nutcracker
33. 33.⚖️ A seesaw balances. Kabir (600 N) sits ? m from the pivot on one side; Arjun (150 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
34. 34.🤝 A team plans for 10 minutes, builds for 25 minutes and then tests for 20 minutes, one after another. How many minutes is that in all?
35. 35.🪝 Fixed or movable pulley: which one only changes direction? (a) a fixed pulley (b) a movable pulley
36. 36.🔢 To follow the engineering design process, which comes first: “Create” or “Ask”? (a) Create (b) Ask
37. 37.🤝 In a design team, who keeps the team on track? (a) materials manager (b) builder (c) team leader (d) recorder
38. 38.True or false: coal is a non-renewable energy source. (a) False (b) True
39. 39.True or false: to do all the work alone is poor teamwork. (a) True (b) False
40. 40.True or false: a pair of kitchen tongs is a class 3 lever (effort in the middle). (a) False (b) True

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