Aha Trivia Stuff Everyone Should Know

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Stuff Every Engineering Scout Should Know: free practice in 30-second cards

Stuff Every Engineering Scout Should Know

Practice facts for the Engineering merit badge. Not an official Scouting America credential.

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Free to start, no sign-up. 66 cards so far. One Knowledge Score and day streak across all your courses.

Questions people ask

Is this practice test free?

Yes. The first 50 cards are free for everyone with no sign-up, each with the answer, why it is right and its sources. Aha Trivia members get all 66 cards and timed practice exams.

How many practice questions are there?

66 practice questions so far. Each one is a 3-choice card that takes about 30 seconds, and the course grows as new cards pass our source checks.

Where do the answers come from?

Every card lists the sources it was checked against, and each answer explains why it is right. If you think an answer is wrong, tap "Challenge this answer" in the game and it gets reviewed.

Can I study in the car?

Yes. Voice mode reads the questions out loud and you answer by voice.

Try 3 cards

  1. What do engineers use to turn ideas into reality?
    Show the answer

    Science and technology. Engineering combines science and technology to create real devices and structures.

  2. What are the four traditional disciplines of engineering?
    Show the answer

    Civil, mechanical, electrical, chemical. Civil, mechanical, electrical, and chemical are the classic branches of engineering.

  3. What is the engineering design process used for?
    Show the answer

    Finding novel solutions to problems. Engineers apply math and science to find new solutions or improve existing ones.

All 66 practice questions

The first 50 are free, with the answer, why it's right and the official sources. The other 16 (🔒) open with a membership (every test). Or play them as a game and track what you've learned.

Show all 66 questions
  1. What do engineers use to turn ideas into reality?
  2. What are the four traditional disciplines of engineering?
  3. What is the engineering design process used for?
  4. What does a factor of safety in a design do?
  5. What is forensic engineering used for?
  6. What does CAD software let engineers create?
  7. What do engineers use prototypes for?
  8. What does the word engineering come from?
  9. What is the earliest civil engineer known by name?
  10. What did the Antikythera mechanism use?
  11. What did John Smeaton pioneer in lighthouse building?
  12. What did Thomas Newcomen build in 1712?
  13. What did the Bessemer process help produce?
  14. What does aeronautical engineering deal with?
  15. What does the Iron Ring remind Canadian engineers of?
  16. What does the engineer's code of ethics favor?
  17. What does Cicero's Creed say is the supreme law?
  18. What do engineers balance when designing?
  19. What are constraints in engineering design?
  20. What does product lifecycle management software help with?
  21. What did the wheel and axle mechanism first appear with?
  22. What was the lever first used for around 5,000 years ago?
  23. What was the last of the six simple machines to be invented?
  24. What powered the earliest practical windmills?
  25. What was the earliest type of programmable machine?
  26. What did Al-Jazari invent in 1206?
  27. What did the electric telegraph and motor help launch?
  28. What did the vacuum tube and transistor accelerate?
  29. What did chemical engineers design in the late 1800s?
  30. What did materials science evolve directly from?
  31. What does aerospace engineering include that aeronautical does not?
  32. What is a Professional Engineer?
  33. What do scientists do compared with engineers?
  34. What does biomedical engineering combine?
  35. What did Leonardo da Vinci combine in his work?
  36. What does engineering management combine?
  37. What does the engineering design process help engineers do?
  38. What is one way engineers test designs before production?
  39. What did the steam engine provide compared with animals?
  40. What did the cotton gin and spinning wheel help grow?
  41. What does the word engineer originally refer to?
  42. What is one benefit of CAD models over physical prototypes?
  43. What do engineers weigh when more than one design solution exists?
  44. What do engineers need proficient knowledge of for design projects?
  45. What does the NSPE code say engineering has a direct impact on?
  46. What does engineering use to solve problems under constraints?
  47. What are some creations that result from engineering?
  48. What basic limits must engineering designs obey?
  49. What does engineering design aim to improve?
  50. What is engineering typically motivated by?
  51. What must a technically successful product also meet? 🔒
  52. What can constraints include besides physics and resources? 🔒
  53. What do engineers derive by understanding constraints? 🔒
  54. What does testing ensure about products? 🔒
  55. What can large engineering disasters arise from? 🔒
  56. What can cause fatigue failure in structures? 🔒
  57. What is one widely used design tool for engineers? 🔒
  58. What does CAM software generate for manufacturing? 🔒
  59. What does EDA software help electronic engineers design? 🔒
  60. What do engineers use to analyze stresses and temperatures in designs? 🔒
  61. What do engineers take responsibility for producing? 🔒
  62. What is engineering research often too complex to solve exactly? 🔒
  63. What does physics seek compared with engineering? 🔒
  64. What does business engineering deal with? 🔒
  65. What do engineers continue to do throughout their careers? 🔒
  66. What does the NSPE code say about engineering as a profession? 🔒