Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 406 · 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 reduce (use less)? (a) turn plastic into tiles (b) pulp old paper (c) refill a water bottle (d) switch off unused lights
2. 2.📐 How many centimetres are in 1 metre? (a) 1000 (b) 10 (c) 60 (d) 100
3. 3.🔺 One side of a straw bridge is a row of 10 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
4. 4.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) gravity (c) balanced (d) unbalanced
5. 5.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) plastic (d) dry wood
6. 6.True or false: a raincoat needs a waterproof material. (a) True (b) False
7. 7.🧪 A paper bridge was tested three times. It held 190 g, 150 g and 170 g. What is the mean (average) load it held, in grams?
8. 8.Which need does a dam meet? (a) go through a mountain (b) reach a top floor fast (c) store water for summer (d) see very tiny things
9. 9.Which of these needs a transparent material? (a) a yoga mat (b) a car seat belt (c) a boat hull (d) a spectacle lens
10. 10.True or false: skating on ice gives less friction. (a) False (b) True
11. 11.⚙️ A wedge is … (a) a rope on a wheel (b) two ramps back to back (c) a bar on a pivot (d) a wheel on a rod
12. 12.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
13. 13.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a constraint (b) a criterion
14. 14.Which job is a screwdriver for? (a) drive in a nail (b) measure a long length (c) smooth a rough edge (d) turn a screw
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
16. 16.True or false: a water filter helps people make water safe to drink. (a) True (b) False
17. 17.🤝 A team plans for 20 minutes, builds for 60 minutes and then tests for 10 minutes, one after another. How many minutes is that in all?
18. 18.⚖️ Going along a lever from one end to the other, the order is: fulcrum, load, effort. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
19. 19.🪢 Tension or compression: a crane lifting cable? (a) tension (b) compression
20. 20.🔍 Which is the odd one out? (a) leave tools on the floor (b) run while holding tools (c) wear safety goggles (d) touch a hot glue tip
21. 21.🧪 What is a prototype? (a) an early test model (b) the final product (c) a sales poster (d) a broken part
22. 22.🧑‍🔧 Which kind of engineer makes medicines in bulk? (a) mechanical (b) computer (c) chemical (d) electrical
23. 23.⚖️ A lever bar balances. The load is 160 N at 10 cm from the fulcrum. The effort is ? N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
24. 24.🧑‍🔧 Which kind of engineer plans a space mission? (a) electrical (b) aerospace (c) civil (d) computer
25. 25.True or false: a fridge helps people keep food fresh longer. (a) True (b) False
26. 26.What does the materials manager do? (a) puts the model together (b) runs the tests (c) collects the supplies (d) checks the goals are met
27. 27.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
28. 28.🔧 Which tool would you use to turn a screw? (a) a hammer (b) a screwdriver (c) a hand drill (d) a spirit level
29. 29.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) hanging outside (d) on a thin pole
30. 30.True or false: a round palace roof uses triangles. (a) False (b) True
31. 31.🔺 One side of a straw bridge is a row of 14 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
32. 32.True or false: a computer engineer designs a flyover. (a) True (b) False
33. 33.♻️ Reduce, reuse or recycle: carry a cloth bag? (a) recycle (b) reuse (c) reduce
34. 34.⚖️ Turning effect = force × … (a) mass of fulcrum (b) time taken (c) distance from fulcrum (d) colour of bar
35. 35.🔄 After testing, a design does not work well. What comes next? (a) Imagine (b) give up (c) Ask (d) Improve
36. 36.True or false: a wheel on ball bearings gives less friction. (a) False (b) True
37. 37.🏋️ A machine lifts a load of 50 N when you push with 10 N. What is its mechanical advantage (MA)?
38. 38.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a light roof (c) using a heavy roof (d) leaving out steel bars
39. 39.🧪 In a fair test, how many things do you change at a time? (a) none (b) one (c) two (d) all of them
40. 40.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing

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