Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 934 · 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.⚖️ What is the pivot point of a lever called? (a) the fulcrum (b) the axle (c) the effort (d) the load
2. 2.🔍 Which is the odd one out? (a) a suspension cable (b) a brick at a wall base (c) a tow rope on a car (d) a tug of war rope
3. 3.🌉 Which bridge type can cross the widest gap in one span? (a) arch bridge (b) suspension bridge (c) beam bridge (d) log bridge
4. 4.🛠️ People need to store water for summer. Which invention helps? (a) a lift (b) a tunnel (c) a bridge (d) a dam
5. 5.True or false: a chemical engineer makes medicines in bulk. (a) False (b) True
6. 6.🛞 More or less friction: chalk on a gym bar? (a) less friction (b) more friction
7. 7.True or false: to do all the work alone is good teamwork. (a) True (b) False
8. 8.🏋️ A machine lifts a load of 300 N when you push with 150 N. What is its mechanical advantage (MA)?
9. 9.🏋️ A smooth ramp is 5 m long and rises 1 m. What effort pushes a 1500 N box up it, in newtons? (ideal ramp, no friction)
10. 10.🔍 Which is the odd one out? (a) a pillar under a roof (b) a bridge pier (c) a swing chain (d) a table leg
11. 11.True or false: a crane hook block is a pulley. (a) True (b) False
12. 12.♻️ Which energy source will never run out? (a) coal (b) diesel (c) sunlight (d) petrol
13. 13.🏋️ A force of 150 N did 1050 J of work. How many metres did the object move?
14. 14.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) mechanical (b) biomedical (c) chemical (d) civil
15. 15.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
16. 16.Which of these is a suspension bridge? (a) a log across a stream (b) the longest spans of all (c) stones squeezed together (d) good for short gaps
17. 17.🔍 Which is the odd one out? (a) a seesaw (b) a claw hammer on a nail (c) a bottle opener (d) a round doorknob
18. 18.True or false: to touch a hot glue tip is safe. (a) False (b) True
19. 19.True or false: “keep ice for 1 hour” is a criterion (a goal). (a) True (b) False
20. 20.💪 Which force is at work: a compass needle turns? (a) friction (b) magnetic force (c) gravity (d) muscular force
21. 21.🌉 What holds up a long beam bridge in the middle? (a) piers (b) cables only (c) nothing (d) balloons
22. 22.⚖️ Which class of lever is a pair of scissors? (a) class 1 (b) class 2 (c) class 3
23. 23.True or false: to make a prototype is the Create step. (a) True (b) False
24. 24.🛠️ Is a bicycle made by engineers or found in nature? (a) made by engineers (b) found in nature
25. 25.🪝 A pulley system lifts a 720 N load with an effort of 240 N. What is its mechanical advantage (MA)?
26. 26.🧪 A paper bridge was tested three times. It held 380 g, 190 g and 270 g. What is the mean (average) load it held, in grams?
27. 27.🔍 Which is the odd one out? (a) cut towards your hand (b) touch a hot glue tip (c) use a cracked tool (d) put tools back after use
28. 28.🤝 Is it good or poor teamwork to listen to every idea? (a) poor teamwork (b) good teamwork
29. 29.🏋️ A 6 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
30. 30.🤝 In a design team, who runs the tests? (a) tester (b) recorder (c) builder (d) materials manager
31. 31.What does the team leader do? (a) cuts and joins parts (b) checks the goals are met (c) keeps the team on track (d) tracks what is used up
32. 32.🪝 A winch has a wheel of radius 7 cm and an axle of radius 1 cm. What effort on the wheel lifts a 210 N bucket on the axle, in newtons? (ideal)
33. 33.Which of these happens in the Imagine step? (a) pick the build order (b) think of wild ideas (c) build the model (d) make a prototype
34. 34.📐 On a plan, 1 cm stands for 2 m. A real bridge is 16 m long. How long is it on the plan, in centimetres?
35. 35.🪝 A winch has a wheel of radius 40 cm and an axle of radius 5 cm. What effort on the wheel lifts a 720 N bucket on the axle, in newtons? (ideal)
36. 36.True or false: to change lots at once is good testing. (a) False (b) True
37. 37.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) friction (c) gravity (d) magnetic force
38. 38.🪝 Fixed or movable pulley: which one makes you pull 2× rope? (a) a movable pulley (b) a fixed pulley
39. 39.🏋️ A force of 190 N did 1520 J of work. How many metres did the object move?
40. 40.True or false: a broom when sweeping is a class 1 lever (fulcrum in the middle). (a) True (b) False

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