Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 142 · 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.🪢 Tension is a force that … (a) heats things (b) pulls or stretches (c) pushes or squeezes (d) turns things
2. 2.🔄 After testing, a design does not work well. What comes next? (a) Ask (b) Imagine (c) give up (d) Improve
3. 3.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) transparent (d) waterproof
4. 4.True or false: a mechanical engineer designs bicycle gears. (a) False (b) True
5. 5.🪝 A bucket weighing 280 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
6. 6.True or false: a claw hammer on a nail is a lever. (a) False (b) True
7. 7.🏋️ Pushing a crate 10 m took 2400 J of work. What force was used, in newtons?
8. 8.♻️ A family used to throw away 3 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 5 weeks?
9. 9.🔺 A frame shaped like a hexagon is made of straws joined by loose pins, with 3 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
10. 10.🧪 Why repeat a test three times? (a) it looks busy (b) to get reliable results (c) to use more paper (d) the first is wrong
11. 11.🪢 Which material is good in tension but useless in compression? (a) a stone (b) a brick (c) a concrete block (d) a rope
12. 12.🪝 A pulley system has 1 rope section holding up the load. To lift the load by 10 m, how many metres of rope must you pull?
13. 13.True or false: diesel is a renewable energy source. (a) True (b) False
14. 14.🏋️ Work is done when a force moves something … (a) without moving it (b) very slowly (c) through a distance (d) only upwards
15. 15.♻️ A family used to throw away 10 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 3 weeks?
16. 16.Which of these is caused by gravity? (a) rain falls to the ground (b) shoes grip the floor (c) a magnet picks up pins (d) lifting a school bag
17. 17.🔺 Which strong shape does a roof truss use? (a) beam (b) dome (c) arch (d) triangle
18. 18.🪝 A pulley system has 1 rope section holding up the load. To lift the load by 1 m, how many metres of rope must you pull?
19. 19.What does the builder do? (a) collects the supplies (b) puts the model together (c) runs the tests (d) checks the goals are met
20. 20.🛠️ Is a volcano made by engineers or found in nature? (a) made by engineers (b) found in nature
21. 21.True or false: a seesaw is a lever. (a) True (b) False
22. 22.🌉 In a suspension bridge, the main cables are in … (a) friction (b) tension (c) compression (d) no force
23. 23.🛞 More or less friction: sand on a slippery path? (a) more friction (b) less friction
24. 24.📋 For a model bridge challenge, is “lift a cup of water” a constraint or a criterion? (a) a constraint (b) a criterion
25. 25.🪝 Fixed or movable pulley: which one stays in one place? (a) a movable pulley (b) a fixed pulley
26. 26.🔍 Which is the odd one out? (a) a river (b) a bridge (c) a railway track (d) a satellite
27. 27.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) an apple falls down (c) a thrown ball comes down (d) lifting a school bag
28. 28.Which of these is in compression (pushed)? (a) a hanging lamp chain (b) a suspension cable (c) a table leg (d) a crane lifting cable
29. 29.True or false: “the longest spans of all” is an arch bridge. (a) False (b) True
30. 30.🔢 To follow the engineering design process, which is the FIRST step? (a) Test (b) Ask (c) Improve (d) Create
31. 31.🔺 A flat frame has 12 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
32. 32.Which job does a mechanical engineer do? (a) designs school networks (b) builds a website (c) designs aeroplane wings (d) designs bicycle gears
33. 33.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) having a wide base (d) fitting rubber base pads
34. 34.🔺 Which strong shape does a crane arm use? (a) dome (b) triangle (c) arch (d) beam
35. 35.⚖️ On a seesaw, a heavier child should sit … (a) closer to the pivot (b) farther from the pivot (c) anywhere (d) on the pivot
36. 36.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) one (d) none
37. 37.🔍 Which is the odd one out? (a) a rainbow (b) a cloud (c) a banyan tree (d) a dam
38. 38.Which of these is a wedge? (a) a seesaw (b) a water tap handle (c) a well-bucket rope wheel (d) a chisel
39. 39.📋 Criteria are … (a) goals a design must meet (b) the tools you use (c) the limits on money (d) the team names
40. 40.🤝 A team plans for 35 minutes, builds for 40 minutes and then tests for 30 minutes, one after another. How many minutes is that in all?

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