Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 431 · 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 force is at work: a magnet picks up pins? (a) friction (b) gravity (c) magnetic force (d) muscular force
2. 2.True or false: a wood screw is a wheel and axle. (a) True (b) False
3. 3.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 14 cm long in the drawing. How long is the real car, in centimetres?
4. 4.True or false: a suspension cable is in compression (pushed). (a) False (b) True
5. 5.🪝 Fixed or movable pulley: which one rises with the load? (a) a fixed pulley (b) a movable pulley
6. 6.🔍 Which is the odd one out? (a) let adults use hot glue (b) tie back long hair (c) cut away from your body (d) use a cracked tool
7. 7.Which job is sandpaper for? (a) measure an angle (b) cut a wooden plank (c) tighten a nut (d) smooth a rough edge
8. 8.📋 Criterion: the model bridge must hold at least 800 g. In the test it held 700 g. Does it meet the criterion? (a) Yes (b) No
9. 9.📐 On a plan, 1 cm stands for 20 m. A real bridge is 280 m long. How long is it on the plan, in centimetres?
10. 10.♻️ A sustainable design … (a) wastes water (b) protects the future (c) uses the most plastic (d) lasts one day
11. 11.True or false: to check a shelf is level, use a spirit level. (a) False (b) True
12. 12.True or false: an aerospace engineer plans a space mission. (a) False (b) True
13. 13.True or false: to measure its performance is the Create step. (a) True (b) False
14. 14.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) computer (b) civil (c) aerospace (d) chemical
15. 15.🛠️ People need to keep food fresh longer. Which invention helps? (a) a solar panel (b) a fridge (c) a bridge (d) a telephone
16. 16.True or false: to try it out is the Ask step. (a) False (b) True
17. 17.🔺 A frame shaped like a square is made of straws joined by loose pins, with 1 corner-to-corner brace. Is it rigid or wobbly? (a) wobbly (b) rigid
18. 18.Which of these uses a beam? (a) a round palace roof (b) a lintel over a door (c) an igloo (d) a curved stone doorway
19. 19.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) not affected (c) squeezed (compression) (d) floating
20. 20.🏋️ A 20 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
21. 21.Which of these is made by engineers? (a) a cloud (b) a mountain (c) a railway track (d) a rainbow
22. 22.True or false: a fixed pulley needs effort = load. (a) True (b) False
23. 23.🧑‍🔧 Which kind of engineer lays out a highway? (a) chemical (b) mechanical (c) biomedical (d) civil
24. 24.True or false: to agree before changing is good teamwork. (a) False (b) True
25. 25.🪝 A well winch has a handle (wheel) of radius 10 cm turning an axle of radius 5 cm. What is its mechanical advantage (MA)?
26. 26.⚙️ Which simple machine is a bottle opener? (a) pulley (b) lever (c) wedge (d) inclined plane
27. 27.⚖️ What is the pivot point of a lever called? (a) the load (b) the effort (c) the axle (d) the fulcrum
28. 28.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) newton (N) (d) metre (m)
29. 29.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) building tall and narrow (d) leaving out steel bars
30. 30.🔄 Which design-process step is it to follow the plan to build? (a) Ask (b) Imagine (c) Test (d) Create
31. 31.🔺 Which shape keeps its shape best when its corners are pinned? (a) triangle (b) rectangle (c) hexagon (d) square
32. 32.🤝 Is it good or poor teamwork to blame others for faults? (a) good teamwork (b) poor teamwork
33. 33.🛠️ Is a waterfall made by engineers or found in nature? (a) made by engineers (b) found in nature
34. 34.📐 Why do engineers use scale drawings? (a) big things fit on paper (b) to save ink only (c) to hide sizes (d) to make them pretty
35. 35.🔺 A frame shaped like a hexagon is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
36. 36.🔺 One side of a straw bridge is a row of 13 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
37. 37.What does the builder do? (a) keeps the team on track (b) puts the model together (c) keeps the design notes (d) checks the goals are met
38. 38.⚖️ A seesaw balances. Ravi (180 N) sits 2 m from the pivot on one side; Kabir (360 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
39. 39.🛞 Is friction helpful or a problem here: brakes stopping a cycle? (a) helpful (b) a problem
40. 40.⚖️ A seesaw balances. Arjun (300 N) sits ? m from the pivot on one side; Asha (150 N) sits 2 m from the pivot on the other side. What is the missing distance in metres?

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