Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 981 · 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 beam balance? (a) class 3 (b) class 1 (c) class 2
2. 2.True or false: a raincoat needs a waterproof material. (a) False (b) True
3. 3.🤝 Is it good or poor teamwork to share the work fairly? (a) poor teamwork (b) good teamwork
4. 4.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
5. 5.True or false: a movable pulley is on a flagpole top. (a) True (b) False
6. 6.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) sketch three ideas (c) strengthen the weak part (d) build it with straws
7. 7.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 30 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
8. 8.True or false: a mechanical engineer designs artificial limbs. (a) False (b) True
9. 9.🏋️ A 15 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
10. 10.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a telescope (d) a shake table
11. 11.🪝 A bucket weighing 380 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
12. 12.True or false: a computer engineer designs factory machines. (a) False (b) True
13. 13.Which of these is made by engineers? (a) a seashell (b) a waterfall (c) a bicycle (d) a river
14. 14.🪢 Compression is a force that … (a) makes light (b) pushes or squeezes (c) cools things (d) pulls or stretches
15. 15.♻️ Reduce, reuse or recycle: melt glass into new jars? (a) recycle (b) reduce (c) reuse
16. 16.True or false: “tall towers hold cables” is an arch bridge. (a) True (b) False
17. 17.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
18. 18.🏋️ A longer ramp to the same height needs … (a) less effort (b) more effort (c) no effort (d) the same effort
19. 19.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
20. 20.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to test ideas cheaply (d) to avoid testing
21. 21.True or false: a mechanical engineer wires a new building. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) a temple column (b) a bridge pier (c) a table leg (d) a crane lifting cable
23. 23.📐 A beam is 960 cm long. How long is it in metres? =
24. 24.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
25. 25.🏋️ Pushing a crate 4 m took 1000 J of work. What force was used, in newtons?
26. 26.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) having a wide base (c) making brittle joints (d) stacking loose bricks
27. 27.⚖️ A lever bar balances. The load is ? N at 50 cm from the fulcrum. The effort is 150 N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
28. 28.🔍 Which is the odd one out? (a) a stone in an arch (b) a pillar under a roof (c) a tow rope on a car (d) a brick at a wall base
29. 29.True or false: a dam is made by engineers. (a) False (b) True
30. 30.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
31. 31.🧱 Which property matters most for a water tank? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
32. 32.🧪 A paper bridge was tested three times. It held 290 g, 210 g and 130 g. What is the mean (average) load it held, in grams?
33. 33.Which of these is in compression (pushed)? (a) a crane lifting cable (b) a stretched rubber band (c) a swing chain (d) a table leg
34. 34.True or false: oil on a squeaky hinge gives less friction. (a) False (b) True
35. 35.Which of these happens in the Imagine step? (a) think of wild ideas (b) measure its performance (c) try it out (d) fix the weak part
36. 36.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
37. 37.🪝 A wheel and axle is a big wheel fixed to … (a) a flat ramp (b) a smaller rod (axle) (c) a loose rope (d) a sharp wedge
38. 38.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
40. 40.Which of these is an inclined plane? (a) a playground slide (b) a bottle cap (c) a nutcracker (d) the tip of a nail

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