Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 148 · 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 of these is a lever? (a) a nut and bolt (b) an axe blade (c) a water tap handle (d) a seesaw
2. 2.What does the team leader do? (a) puts the model together (b) cuts and joins parts (c) keeps the team on track (d) tracks what is used up
3. 3.Which of these is an inclined plane? (a) a nut and bolt (b) a door stopper (c) a truck loading ramp (d) a knife edge
4. 4.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) civil (b) computer (c) chemical (d) biomedical
5. 5.🔺 Why can an arch carry heavy loads? (a) it is very light (b) it works in compression (c) it bends easily (d) it is hollow
6. 6.♻️ Reduce, reuse or recycle: plant in old tyres? (a) recycle (b) reuse (c) reduce
7. 7.🌉 Which bridge type can cross the widest gap in one span? (a) beam bridge (b) arch bridge (c) suspension bridge (d) log bridge
8. 8.True or false: to talk over others is good teamwork. (a) False (b) True
9. 9.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
10. 10.♻️ Reduce, reuse or recycle: buy less packaging? (a) reuse (b) reduce (c) recycle
11. 11.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
12. 12.🛞 More or less friction: a tyre with deep treads? (a) less friction (b) more friction
13. 13.🧑‍🔧 Which kind of engineer designs satellites? (a) electrical (b) computer (c) aerospace (d) chemical
14. 14.🦺 In the workshop, is it safe to run while holding tools? (a) not safe (b) safe
15. 15.Which of these happens in the Imagine step? (a) think of wild ideas (b) list the materials (c) measure its performance (d) find the limits
16. 16.🤝 Why do engineers work in teams? (a) to argue more (b) to work alone (c) many skills and ideas (d) to finish nothing
17. 17.True or false: pressing a doorbell is a push. (a) False (b) True
18. 18.⚖️ In a class 3 lever, what is in the middle? (a) the pulley (b) the effort (c) the fulcrum (d) the load
19. 19.True or false: to own up to a mistake is good teamwork. (a) True (b) False
20. 20.True or false: a round palace roof uses a dome. (a) True (b) False
21. 21.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
22. 22.Which job does a civil engineer do? (a) plans a dam (b) designs knee implants (c) designs car engines (d) refines crude oil
23. 23.True or false: a tug of war rope is in tension (pulled). (a) True (b) False
24. 24.🤝 A team of 5 shares 10 equal jobs fairly. Each job takes 7 minutes. How many minutes does each person work?
25. 25.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
26. 26.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) build it with straws (b) read the challenge rules
27. 27.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 60 N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
28. 28.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
29. 29.True or false: wind is a non-renewable energy source. (a) False (b) True
30. 30.♻️ A project report has 72 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
31. 31.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a fridge (d) a microscope
32. 32.💪 Two children push a box to the right, one with 65 N and the other with 5 N. What is the net (total) force on the box, in newtons?
33. 33.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 2 N, a glass sheet 4 N, a carpet 5 N, sandpaper 7 N. Which surface gave the least friction? (a) a glass sheet (b) a carpet (c) sandpaper (d) ice
34. 34.True or false: a bottle opener is a class 2 lever (load in the middle). (a) True (b) False
35. 35.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
36. 36.🔍 Which is the odd one out? (a) cut away from your body (b) run while holding tools (c) wear safety goggles (d) clamp wood before sawing
37. 37.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 10 N, sandpaper 12 N, ice 3 N, a glass sheet 6 N. Which surface gave the most friction? (a) sandpaper (b) a wooden plank (c) ice (d) a glass sheet
38. 38.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.♻️ Which energy source will never run out? (a) diesel (b) coal (c) petrol (d) sunlight
40. 40.True or false: a lift is found in nature. (a) True (b) False

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