Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 675 · 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.True or false: an electrical engineer designs hearing aids. (a) False (b) True
2. 2.🌉 Which bridge type: “a curve under the deck”? (a) suspension bridge (b) beam bridge (c) arch bridge
3. 3.📋 Criteria are … (a) the tools you use (b) goals a design must meet (c) the limits on money (d) the team names
4. 4.⚖️ A lever balances when … (a) the bar is short (b) the fulcrum moves (c) turning effects match (d) both weights are equal
5. 5.Which job is a saw for? (a) tighten a nut (b) measure an angle (c) cut a wooden plank (d) check a shelf is level
6. 6.🛠️ Is a banyan tree made by engineers or found in nature? (a) made by engineers (b) found in nature
7. 7.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.🦺 In the workshop, is it safe to cut towards your hand? (a) not safe (b) safe
9. 9.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 2 N, a glass sheet 6 N, a wooden plank 10 N, sandpaper 11 N. Which surface gave the least friction? (a) a wooden plank (b) ice (c) a glass sheet (d) sandpaper
10. 10.📐 On a plan, 1 cm stands for 5 m. A real bridge is 70 m long. How long is it on the plan, in centimetres?
11. 11.Which need does a water filter meet? (a) carry many people far (b) make water safe to drink (c) cross a wide river (d) keep food fresh longer
12. 12.🪝 A pulley system lifts an 870 N load with an effort of 290 N. What is its mechanical advantage (MA)?
13. 13.Which of these uses a beam? (a) an electric pylon (b) a slab over a canal (c) a curved stone doorway (d) a crane arm
14. 14.Which of these happens in the Imagine step? (a) follow the plan to build (b) try it out (c) redesign after testing (d) brainstorm many ideas
15. 15.🔍 Which is the odd one out? (a) a suspension cable (b) a tall bridge tower (c) a stretched rubber band (d) a tent guy rope
16. 16.🦺 How should you carry scissors? (a) points down, closed (b) points up, open (c) while running (d) by the blades
17. 17.🛠️ What does an engineer mainly do? (a) grows crops (b) designs useful solutions (c) only paints pictures (d) sells tickets
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 2 (c) class 3
19. 19.True or false: a movable pulley rises with the load. (a) True (b) False
20. 20.True or false: a water tank needs a transparent material. (a) True (b) False
21. 21.🔄 Which design-process step is it to pick the build order? (a) Create (b) Improve (c) Ask (d) Plan
22. 22.True or false: a water tap handle is a wheel and axle. (a) False (b) True
23. 23.🧑‍🔧 Which kind of engineer designs bicycle gears? (a) biomedical (b) mechanical (c) chemical (d) electrical
24. 24.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 30 cm and the load at 20 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
25. 25.True or false: a mechanical engineer wires a new building. (a) False (b) True
26. 26.⚙️ Which simple machine is a wheelchair ramp? (a) wheel and axle (b) inclined plane (c) pulley (d) lever
27. 27.📐 A beam is 410 cm long. How long is it in metres? =
28. 28.🪝 A bucket weighing 150 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
29. 29.🪝 What does a single fixed pulley change? (a) gravity (b) the size of the load (c) the colour of rope (d) the direction of pull
30. 30.True or false: to follow the plan to build is the Create step. (a) True (b) False
31. 31.🌉 Which bridge type: “the longest spans of all”? (a) arch bridge (b) beam bridge (c) suspension bridge
32. 32.🔺 One side of a straw bridge is a row of 6 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
33. 33.🛠️ Is a bridge made by engineers or found in nature? (a) made by engineers (b) found in nature
34. 34.Which of these uses triangles? (a) an old stone bridge (b) a plank over a drain (c) a lintel over a door (d) a bicycle frame
35. 35.⚙️ Which simple machine is a well-bucket rope wheel? (a) wheel and axle (b) lever (c) pulley (d) wedge
36. 36.♻️ Reduce, reuse or recycle: buy less packaging? (a) reuse (b) recycle (c) reduce
37. 37.🔢 To follow the engineering design process, what comes right after “Imagine”? (a) Ask (b) Test (c) Plan (d) Create
38. 38.True or false: powder on a carrom board gives less friction. (a) True (b) False
39. 39.Which of these uses an arch? (a) a slab over a canal (b) a shelf on two brackets (c) a fort gateway (d) a bicycle frame
40. 40.True or false: oil on a squeaky hinge gives less friction. (a) False (b) True

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