Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 605 · 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.🤝 A team of 4 shares 16 equal jobs fairly. Each job takes 2 minutes. How many minutes does each person work?
2. 2.💪 Two children push a box to the right, one with 80 N and the other with 30 N. What is the net (total) force on the box, in newtons?
3. 3.🪝 More rope sections holding a load means … (a) no change (b) less effort needed (c) the load floats (d) more effort needed
4. 4.Which of these needs an electrical conductor? (a) the core of a wire (b) a boat hull (c) a spectacle lens (d) a magnifier lens
5. 5.True or false: to test it only once is poor testing. (a) True (b) False
6. 6.🪝 Fixed or movable pulley: which one is on a flagpole top? (a) a fixed pulley (b) a movable pulley
7. 7.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
8. 8.🛞 Is friction helpful or a problem here: brakes stopping a cycle? (a) a problem (b) helpful
9. 9.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
10. 10.True or false: “pushes out on its ends” is a beam bridge. (a) False (b) True
11. 11.True or false: a mechanical engineer writes app software. (a) False (b) True
12. 12.Which of these uses triangles? (a) a shelf on two brackets (b) an electric pylon (c) an old stone bridge (d) a plank over a drain
13. 13.Which of these is a screw? (a) a chisel (b) a bottle cap (c) a crane hook block (d) a flagpole rope wheel
14. 14.📐 On a plan, 1 cm stands for 2 m. A wall is 16 cm long on the plan. How long is the real wall, in metres?
15. 15.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) fitting rubber base pads (c) building tall and narrow (d) using a heavy roof
16. 16.🏋️ A machine lifts a load of 60 N when you push with 30 N. What is its mechanical advantage (MA)?
17. 17.🧪 What is a prototype? (a) an early test model (b) a broken part (c) the final product (d) a sales poster
18. 18.🌉 A beam bridge 90 m long rests on the two river banks and on piers in between, making equal spans of 10 m. How many piers are there?
19. 19.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 350 g. Does it meet the criterion? (a) Yes (b) No
20. 20.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 0 cm and the load at 10 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
21. 21.True or false: an old stone bridge uses triangles. (a) False (b) True
22. 22.🏚️ 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 320 cm tall on a 40 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
23. 23.📋 Criteria are … (a) the team names (b) the tools you use (c) goals a design must meet (d) the limits on money
24. 24.⚖️ Which class of lever is a pair of tweezers? (a) class 1 (b) class 3 (c) class 2
25. 25.🪢 Which material is good in tension but useless in compression? (a) a rope (b) a concrete block (c) a stone (d) a brick
26. 26.True or false: to share the work fairly is poor teamwork. (a) False (b) True
27. 27.🔧 Which tool would you use to cut a wooden plank? (a) a hammer (b) a saw (c) a tape measure (d) sandpaper
28. 28.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) transparent (d) flexible
29. 29.True or false: a shelf on two brackets uses an arch. (a) True (b) False
30. 30.🪝 A pulley system has 3 rope sections holding up the load. To lift the load by 6 m, how many metres of rope must you pull?
31. 31.🔍 Which is the odd one out? (a) a door stopper (b) a well winch handle (c) a chisel (d) a knife edge
32. 32.🏋️ A smooth ramp is 15 m long and rises 3 m. What effort pushes a 3750 N box up it, in newtons? (ideal ramp, no friction)
33. 33.Which of these is a lever? (a) a crane hook block (b) a knife edge (c) a seesaw (d) an axe blade
34. 34.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) record every result (d) use a new load each time
35. 35.📐 On a plan, 1 cm stands for 2 m. A wall is 11 cm long on the plan. How long is the real wall, in metres?
36. 36.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) biomedical (b) computer (c) civil (d) chemical
37. 37.True or false: “lift a cup of water” is a constraint (a limit). (a) True (b) False
38. 38.Which need does a tunnel meet? (a) see very tiny things (b) make power from sunlight (c) go through a mountain (d) talk to someone far away
39. 39.Which of these is a suspension bridge? (a) the simplest bridge (b) the longest spans of all (c) a flat deck on piers (d) a curve under the deck
40. 40.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?

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