Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 395 · 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.🔄 Is the engineering design process done only once? (a) no, it repeats (b) only on Sundays (c) only for big jobs (d) yes, only once
2. 2.🤝 A teammate’s idea seems odd. What should you do first? (a) laugh at it (b) ignore it (c) walk away (d) listen and ask why
3. 3.♻️ Reduce, reuse or recycle: melt glass into new jars? (a) recycle (b) reuse (c) reduce
4. 4.⚙️ How many simple machines are there in the usual list? (a) 3 (b) 12 (c) 6 (d) 10
5. 5.⚖️ A seesaw balances. Zoya (? N) sits 2 m from the pivot on one side; Ravi (400 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
6. 6.True or false: a river is made by engineers. (a) False (b) True
7. 7.⚖️ Which class of lever is a pair of pliers? (a) class 1 (b) class 2 (c) class 3
8. 8.True or false: to follow the plan to build is the Create step. (a) False (b) True
9. 9.♻️ Which is the BEST order to think about waste? (a) burn, bury, forget (b) reuse, recycle, reduce (c) recycle, reuse, reduce (d) reduce, reuse, recycle
10. 10.True or false: a civil engineer designs power lines. (a) True (b) False
11. 11.🔧 Which tool would you use to measure an angle? (a) a spirit level (b) a saw (c) pliers (d) a protractor
12. 12.True or false: a biomedical engineer designs power lines. (a) True (b) False
13. 13.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
14. 14.🦺 In the workshop, is it safe to tie back long hair? (a) not safe (b) safe
15. 15.True or false: a screw jack is a pulley. (a) True (b) False
16. 16.🔺 One side of a straw bridge is a row of 15 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
17. 17.Which of these is a wedge? (a) a door stopper (b) a bottle opener (c) a playground slide (d) a flagpole rope wheel
18. 18.Which of these is an arch bridge? (a) good for short gaps (b) a curve under the deck (c) tall towers hold cables (d) a log across a stream
19. 19.True or false: a lift helps people reach a top floor fast. (a) True (b) False
20. 20.🛞 How can we reduce friction in a machine? (a) press parts harder (b) oil the moving parts (c) add sand (d) make parts rough
21. 21.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
22. 22.🔢 To follow the engineering design process, which is the LAST step? (a) Ask (b) Create (c) Imagine (d) Improve
23. 23.📐 On a plan, 1 cm stands for 20 m. A real bridge is 160 m long. How long is it on the plan, in centimetres?
24. 24.Which need does a dam meet? (a) go through a mountain (b) talk to someone far away (c) store water for summer (d) reach a top floor fast
25. 25.Which of these is reuse (use again)? (a) give old books away (b) melt cans into new cans (c) melt glass into new jars (d) buy less packaging
26. 26.🪢 A stage stands on 8 identical legs and each leg is squeezed with 900 N. What is the total load on the stage, in newtons?
27. 27.True or false: an aerospace engineer designs hearing aids. (a) True (b) False
28. 28.📐 On a plan, 1 cm stands for 5 m. A wall is 13 cm long on the plan. How long is the real wall, in metres?
29. 29.🔺 Which shape keeps its shape best when its corners are pinned? (a) triangle (b) rectangle (c) hexagon (d) square
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 20 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
31. 31.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 6 N, a carpet 8 N, sandpaper 10 N, ice 4 N. Which surface gave the least friction? (a) a carpet (b) ice (c) a glass sheet (d) sandpaper
32. 32.True or false: a mechanical engineer designs factory machines. (a) False (b) True
33. 33.🏋️ Pushing a crate 10 m took 1600 J of work. What force was used, in newtons?
34. 34.🔢 To follow the engineering design process, which is the FIRST step? (a) Plan (b) Create (c) Improve (d) Ask
35. 35.🏋️ A machine lifts a load of 140 N when you push with 70 N. What is its mechanical advantage (MA)?
36. 36.True or false: “lift a cup of water” is a criterion (a goal). (a) False (b) True
37. 37.🧑‍🔧 Which kind of engineer designs satellites? (a) aerospace (b) computer (c) mechanical (d) chemical
38. 38.True or false: a brick at a wall base is in tension (pulled). (a) True (b) False
39. 39.True or false: “use at most 20 straws” is a criterion (a goal). (a) False (b) True
40. 40.True or false: “a curve under the deck” is a beam bridge. (a) False (b) True

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