Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 506 · 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.♻️ Reduce, reuse or recycle: reuse gift paper? (a) reduce (b) reuse (c) recycle
2. 2.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) dry wood (d) steel
3. 3.True or false: pulling a cart is a pull. (a) True (b) False
4. 4.🦺 What protects your eyes when sawing or drilling? (a) a cap (b) nothing (c) sunglasses (d) safety goggles
5. 5.True or false: to record every result is poor testing. (a) True (b) False
6. 6.⚖️ A lever bar balances. The load is 150 N at ? cm from the fulcrum. The effort is 30 N at 50 cm from the fulcrum on the other side. What is the missing distance in centimetres?
7. 7.⚖️ A lever bar balances. The load is 400 N at ? cm from the fulcrum. The effort is 150 N at 80 cm from the fulcrum on the other side. What is the missing distance in centimetres?
8. 8.🧑‍🔧 Which kind of engineer designs factory machines? (a) electrical (b) civil (c) mechanical (d) computer
9. 9.🔄 What is the FIRST step of the engineering design process? (a) Improve (b) Ask (c) Create (d) Test
10. 10.True or false: to brainstorm many ideas is the Test step. (a) False (b) True
11. 11.True or false: a movable pulley halves the effort. (a) True (b) False
12. 12.True or false: to find the limits is the Ask step. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) a wheelchair ramp (b) a flagpole rope wheel (c) a truck loading ramp (d) a playground slide
14. 14.Which of these is caused by muscular force? (a) lifting a school bag (b) an apple falls down (c) brakes stop a bicycle (d) rubbing hands warms them
15. 15.🔺 Which shape keeps its shape best when its corners are pinned? (a) rectangle (b) triangle (c) hexagon (d) square
16. 16.⚙️ Most simple machines make work easier by letting us … (a) make new energy (b) switch off gravity (c) use a smaller force (d) stop all friction
17. 17.📐 On a plan, 1 cm stands for 2 m. A wall is 6 cm long on the plan. How long is the real wall, in metres?
18. 18.🌉 Which bridge type: “good for short gaps”? (a) arch bridge (b) beam bridge (c) suspension bridge
19. 19.🌉 Which bridge type: “pushes out on its ends”? (a) suspension bridge (b) arch bridge (c) beam bridge
20. 20.🏋️ A machine lifts a load of 160 N when you push with 80 N. What is its mechanical advantage (MA)?
21. 21.True or false: an electrical engineer designs car engines. (a) False (b) True
22. 22.True or false: “a curve under the deck” is a beam bridge. (a) False (b) True
23. 23.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
24. 24.Which of these is in compression (pushed)? (a) a stone in an arch (b) a tug of war rope (c) a swing chain (d) a suspension cable
25. 25.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
27. 27.📐 On a plan, 1 cm stands for 10 m. A real bridge is 200 m long. How long is it on the plan, in centimetres?
28. 28.⚙️ Which simple machine is a jar lid? (a) pulley (b) wheel and axle (c) screw (d) wedge
29. 29.🪝 A winch has a wheel of radius 30 cm and an axle of radius 5 cm. What effort on the wheel lifts a 180 N bucket on the axle, in newtons? (ideal)
30. 30.True or false: diesel is a renewable energy source. (a) True (b) False
31. 31.True or false: “tall towers hold cables” is an arch bridge. (a) False (b) True
32. 32.🔺 Why can an arch carry heavy loads? (a) it is hollow (b) it works in compression (c) it is very light (d) it bends easily
33. 33.🦺 How should you carry scissors? (a) by the blades (b) points up, open (c) points down, closed (d) while running
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
35. 35.⚖️ What is the pivot point of a lever called? (a) the effort (b) the axle (c) the fulcrum (d) the load
36. 36.🏋️ A 4 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
37. 37.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) civil (b) biomedical (c) chemical (d) computer
38. 38.🪝 A pulley system lifts a 960 N load with an effort of 240 N. What is its mechanical advantage (MA)?
39. 39.What does the materials manager do? (a) keeps the design notes (b) tracks what is used up (c) checks the goals are met (d) writes down results
40. 40.True or false: a squeezed spring is in compression (pushed). (a) True (b) False

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