Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 609 · 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 uses triangles? (a) a plank over a drain (b) a crane arm (c) a slab over a canal (d) a curved stone doorway
2. 2.🏋️ A machine lifts a load of 320 N when you push with 80 N. What is its mechanical advantage (MA)?
3. 3.🔺 Which shape keeps its shape best when its corners are pinned? (a) triangle (b) hexagon (c) square (d) rectangle
4. 4.True or false: to tie back long hair is not safe. (a) False (b) True
5. 5.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Imagine (b) Plan (c) Test (d) Create
6. 6.🔄 Which design-process step is it to pick the build order? (a) Ask (b) Imagine (c) Plan (d) Improve
7. 7.🔍 Which is the odd one out? (a) a satellite (b) a bridge (c) a water filter (d) a banyan tree
8. 8.True or false: to measure the same way is good testing. (a) False (b) True
9. 9.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) recycle (b) reuse (c) reduce
10. 10.⚙️ Most simple machines make work easier by letting us … (a) make new energy (b) switch off gravity (c) stop all friction (d) use a smaller force
11. 11.⚖️ A lever balances when … (a) the bar is short (b) both weights are equal (c) turning effects match (d) the fulcrum moves
12. 12.🏋️ A force of 350 N pushes a cart 5 m along the floor. How much work is done, in joules?
13. 13.🔍 Which is the odd one out? (a) play near a moving drill (b) put tools back after use (c) let adults use hot glue (d) wear safety goggles
14. 14.♻️ Reduce, reuse or recycle: use a jar as a pen stand? (a) recycle (b) reduce (c) reuse
15. 15.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
16. 16.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
17. 17.🌉 In a suspension bridge, the main cables are in … (a) no force (b) friction (c) compression (d) tension
18. 18.🔺 A frame shaped like a triangle is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
19. 19.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) magnetism (d) friction
20. 20.⚖️ Along a straight bar, measured from the left end, the effort is at 80 cm, the fulcrum at 20 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
21. 21.♻️ Is petrol a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
22. 22.True or false: a well winch handle is an inclined plane. (a) False (b) True
23. 23.📐 On a plan, 1 cm stands for 20 m. A wall is 6 cm long on the plan. How long is the real wall, in metres?
24. 24.True or false: to carry scissors closed is safe. (a) True (b) False
25. 25.🏚️ 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 240 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
26. 26.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) transparent (d) flexible
27. 27.📐 A beam is 910 cm long. How long is it in metres? =
28. 28.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) chemical (b) computer (c) civil (d) aerospace
29. 29.True or false: a truss bridge side uses triangles. (a) False (b) True
30. 30.What does the recorder do? (a) cuts and joins parts (b) writes down results (c) tracks what is used up (d) checks the goals are met
31. 31.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 2 (b) class 1 (c) class 3
32. 32.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
33. 33.🔄 What is the FIRST step of the engineering design process? (a) Test (b) Create (c) Ask (d) Improve
34. 34.⚖️ On a seesaw, a heavier child should sit … (a) anywhere (b) closer to the pivot (c) farther from the pivot (d) on the pivot
35. 35.True or false: to share the work fairly is poor teamwork. (a) True (b) False
36. 36.⚖️ A lever bar balances. The load is 400 N at ? cm from the fulcrum. The effort is 400 N at 40 cm from the fulcrum on the other side. What is the missing distance in centimetres?
37. 37.🔺 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?
38. 38.📐 On a plan, 1 cm stands for 20 m. A real bridge is 200 m long. How long is it on the plan, in centimetres?
39. 39.⚖️ Which class of lever is a seesaw? (a) class 3 (b) class 1 (c) class 2
40. 40.🏋️ A force of 490 N did 2450 J of work. How many metres did the object move?

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