Trivia Cafe

100 Technology Trivia Questions and Answers

Inventions, computing and the machines that reshaped daily life.

Every question below is shown with its answer, so you can scan the whole set, pick the ones you want, and run a round without clicking through. They are free to use for quiz nights, classrooms and pub quizzes. Where a question has extra background, it links to the full explanation.

  1. 1.What does the amateur radio term 'CQ' mean when transmitted?

    Answer: Calling any station

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  2. 2.What does the Q-code 'QTH' mean in amateur radio communication?

    Answer: My location is...

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  3. 3.What does the abbreviation 'FPV' stand for in the context of drone piloting?

    Answer: First Person View

    Read the full explanationLearn more on Codexery: First-person view (remote control)
  4. 4.What does ESC stand for in the context of electric RC vehicles?

    Answer: Electronic Speed Controller

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  5. 5.What term describes the flight mode where a drone autonomously follows a moving subject using GPS or visual tracking?

    Answer: ActiveTrack (or Follow Me mode)

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  6. 6.What refresh rate, measured in hertz, became the standard baseline for competitive gaming monitors, doubling the traditional 60Hz?

    Answer: 144Hz

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  7. 7.What competitive first-person shooter, developed by Riot Games and released in 2020, combines precise gunplay with character-based abilities?

    Answer: Valorant

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  8. 8.What technology allows a drone to maintain a fixed position in the air without pilot input, using GPS and barometric sensors?

    Answer: GPS hover (or position hold)

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  9. 9.What ionospheric layer is primarily responsible for long-distance HF radio propagation during the daytime?

    Answer: F2 layer

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  10. 10.What is the highest class of amateur radio license in the United States, granting full privileges on all bands?

    Answer: Amateur Extra

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  11. 11.What frequency band, measured in GHz, do most modern RC transmitters use to avoid interference?

    Answer: 2.4 GHz

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  12. 12.What year was the first iPhone released?

    Answer: 2007

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  13. 13.What type of antenna, consisting of a horizontal wire fed at the center, is one of the simplest and most popular HF antennas?

    Answer: Dipole antenna

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  14. 14.What annual event challenges amateur radio operators to set up temporary stations and make as many contacts as possible in 24 hours?

    Answer: Field Day

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  15. 15.What is the name of the international system that divides the world into grid squares for identifying locations in amateur radio?

    Answer: Maidenhead Locator System

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  16. 16.What does CPU stand for in computing?

    Answer: Central Processing Unit

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  17. 17.What is the common term for the measure of delay between a player's input and the corresponding action appearing on screen, critical in competitive gaming?

    Answer: Input lag (or latency)

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  18. 18.What remote identification requirement, often called 'digital license plates,' was mandated by the FAA for most drones starting in 2024?

    Answer: Remote ID

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  19. 19.What South Korean player, known as 'Faker,' is widely regarded as the greatest League of Legends player of all time?

    Answer: Lee Sang-hyeok

    Read the full explanationLearn more on Codexery: League of Legends
  20. 20.What is the name of the annual video game tournament hosted by Valve Corporation for Dota 2, known for record-breaking prize pools funded by player purchases?

    Answer: The International

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  21. 21.What type of RC car chassis features the motor and drivetrain mounted along the center spine for balanced weight distribution?

    Answer: Mid-motor layout

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  22. 22.What does the term '1/10 scale' mean when describing an RC car?

    Answer: One-tenth real car size

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  23. 23.What is the maximum altitude that recreational drone pilots are legally allowed to fly in the United States without special authorization?

    Answer: 400 feet

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  24. 24.In drone racing, what does the 'S' rating on a LiPo battery indicate, such as '4S' or '6S'?

    Answer: Number of cells in series

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  25. 25.What is the name for the spinning propeller configuration where four rotors are arranged symmetrically, the most common multirotor design?

    Answer: Quadcopter

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  26. 26.What type of shock absorber, filled with silicone oil, is standard on hobby-grade RC vehicles?

    Answer: Oil-filled shocks

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  27. 27.What radio-controlled car racing organization, founded in 1967 and known by a four-letter acronym, sanctions competitive off-road and on-road events in the United States?

    Answer: ROAR (Remotely Operated Auto Racers)

  28. 28.What Chinese technology company manufactures the Mavic, Phantom, and Air series of consumer drones?

    Answer: DJI

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  29. 29.What U.S. federal agency requires recreational drone pilots to register aircraft weighing over 250 grams?

    Answer: FAA (Federal Aviation Administration)

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  30. 30.What nitro fuel percentage is most commonly used in hobby-grade nitro RC cars?

    Answer: 20%

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  31. 31.Who co-founded Apple Computer with Steve Jobs?

    Answer: Steve Wozniak

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  32. 32.What component in an RC car converts the rotary motion of the motor into different wheel speeds during turns?

    Answer: Differential

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  33. 33.What frequency band is most commonly associated with beginner ham radio operators holding a Technician license in the United States?

    Answer: 2-meter band (144 MHz)

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  34. 34.What digital mode, developed by Nobel Prize-winning physicist Joe Taylor, allows amateur radio operators to make contacts with extremely weak signals?

    Answer: FT8

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  35. 35.What NVIDIA technology synchronizes the GPU's frame output with the monitor's refresh rate to eliminate screen tearing?

    Answer: G-Sync

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  36. 36.What battery chemistry, abbreviated LiPo, is most commonly used in high-performance RC vehicles?

    Answer: Lithium polymer

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  37. 37.What type of keyboard switch, preferred by many competitive gamers for its fast actuation, uses a linear mechanism with no tactile bump?

    Answer: Cherry MX Red (or linear switch)

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  38. 38.What does 'GPU' stand for, the component most critical for gaming performance in modern PCs?

    Answer: Graphics Processing Unit

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  39. 39.What is the common name for the type of battery used in most consumer and racing drones, known for its high energy density?

    Answer: LiPo (Lithium Polymer)

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  40. 40.What type of RC motor uses magnets and coils without physical contact brushes, offering higher efficiency?

    Answer: Brushless motor

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  41. 41.Which company manufactured the LR-300: Carl Gustafs Stads Gevärsfaktori, Zastava, Z-M Weapons or Izhmash?

    Answer: Z-M Weapons

    Read the full explanationLearn more on Codexery: LR-300
  42. 42.Who designed "Armaguerra Mod. 39 rifle": John Garand, Gino Revelli, Melvin Johnson or Eugene Stoner?

    Answer: Gino Revelli

    Read the full explanationLearn more on Codexery: Armaguerra Mod. 39 rifle
  43. 43.Who designed "SR-25": Eugene Stoner, Melvin Johnson, Erik Eklund or Gino Revelli?

    Answer: Eugene Stoner

    Read the full explanationLearn more on Codexery: SR-25
  44. 44.In which city is Savage Arms headquartered: Ulm, Germany, Leipzig, Germany, Ogden, Utah or Westfield, Massachusetts?

    Answer: Westfield, Massachusetts

    Read the full explanationLearn more on Codexery: Savage Arms
  45. 45.In what year was Italian firearm manufacturer located Benelli Armi founded: 1962, 1967, 1968 or 1969?

    Answer: 1967

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  46. 46.In which city is NOBLEX E-Optics GmbH headquartered: Eisfeld, Thuringia, Germany, Cheyenne, Wyoming, Gladstone, Michigan or Ulm, Germany?

    Answer: Eisfeld, Thuringia, Germany

    Read the full explanationLearn more on Codexery: NOBLEX E-Optics GmbH
  47. 47.Who invented the Bayko: Percy Shaw, Ernest Monnington Bowden, John Harrison or Charles Plimpton?

    Answer: Charles Plimpton

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  48. 48.Who invented the Bouncing bomb: Charles Plimpton, Barnes Wallis, Frederick Scott Archer or Carey Foster?

    Answer: Barnes Wallis

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  49. 49.Who invented the Collodion process: Carey Foster, Tom Smith of London, Percy Shaw or Frederick Scott Archer?

    Answer: Frederick Scott Archer

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  50. 50.In what year was American manufacturer Paul K. Guillow, Inc. founded: 1926, 1931, 1936 or 1949?

    Answer: 1926

    Read the full explanationLearn more on Codexery: Paul K. Guillow, Inc.
  51. 51.In what year was monthly full-color publication written Model Aviation founded: 1926, 1933, 1936 or 1949?

    Answer: 1936

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  52. 52.Which company manufactured the RAE Larynx: Northrop Grumman, Royal Aircraft Establishment, Radioplane Company or Republic Aviation?

    Answer: Royal Aircraft Establishment

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  53. 53.Which company manufactured the AVIC WZ-8: Radioplane Company, Aviation Industry Corporation of China, Northrop Grumman or Republic Aviation?

    Answer: Aviation Industry Corporation of China

    Read the full explanationLearn more on Codexery: AVIC WZ-8
  54. 54.Which company manufactured the Garpiya: Royal Aircraft Establishment, Ryan Aeronautical, IEMZ Kupol or Aeronautics Defense Systems?

    Answer: IEMZ Kupol

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  55. 55.Which company manufactured the Spot-On models: Underwood Engineering Co. Ltd, Meccano Ltd, Tri-ang or Rosebud Dolls Ltd?

    Answer: Tri-ang

    Read the full explanationLearn more on Codexery: Spot-On models
  56. 56.Which company manufactured the Dinky Toys: Underwood Engineering Co. Ltd, Rosebud Dolls Ltd, Tri-ang or Meccano Ltd?

    Answer: Meccano Ltd

    Read the full explanationLearn more on Codexery: Dinky Toys
  57. 57.Who designed "Alfa Romeo Alfasud": I.DE.A Institute, Sergio Rinland, Pierangelo Andreani or Giorgetto Giugiaro?

    Answer: Giorgetto Giugiaro

    Read the full explanationLearn more on Codexery: Alfa Romeo Alfasud
  58. 58.Who designed "Maserati Biturbo": Pierangelo Andreani, I.DE.A Institute, Michel Boué or Sergio Rinland?

    Answer: Pierangelo Andreani

    Read the full explanationLearn more on Codexery: Maserati Biturbo
  59. 59.Who designed "Renault 5": Giorgetto Giugiaro, I.DE.A Institute, Michel Boué or Pierangelo Andreani?

    Answer: Michel Boué

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  60. 60.In what year did American mechanical engineer Robert Kearns die: 1954, 2004, 2005 or 2022?

    Answer: 2005

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  61. 61.In what year was Soviet physicist Vladislav Ivanov born: 1890, 1920, 1935 or 1936?

    Answer: 1936

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  62. 62.In what year was American physician Raymond Damadian born: 1890, 1920, 1935 or 1936?

    Answer: 1936

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  63. 63.In what year was privately owned Panzura founded: 2005, 2007, 2008 or 2009?

    Answer: 2008

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  64. 64.In what year was Taiwanese corporation Synology founded: 2000, 2005, 2007 or 2008?

    Answer: 2000

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  65. 65.In what year was "Exatron Stringy Floppy" introduced: 1978, 1990, 1991 or 1999?

    Answer: 1978

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  66. 66.Which company manufactured the Radeon HD 8000 series: TSMC, Digital Media Professionals Inc, AMD or Motorola?

    Answer: AMD

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  67. 67.In which city is AstroFlight headquartered: Bretten-Gölshausen, Germany, Champaign, Illinois, Irvine, California, US or Vista, California?

    Answer: Irvine, California, US

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  68. 68.In which city is ParkZone headquartered: Champaign, Illinois, United States, Bretten-Gölshausen, Germany, Irvine, California, US or Vista, California?

    Answer: Champaign, Illinois, United States

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  69. 69.In what year was Hirobo founded: 1949, 1955, 1962 or 1974?

    Answer: 1949

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  70. 70.What is the name of the car, driven by Andy Green, that in 1997 became the first land vehicle to officially break the sound barrier?

    Answer: ThrustSSC

  71. 71.Which Scottish engineer introduced the term "horsepower"?

    Answer: James Watt

  72. 72.Which light military vehicle of World War II, built by Willys and Ford, was commonly known by a four-letter name?

    Answer: The Jeep

  73. 73.Which Japanese car maker set itself apart from its rivals from the 1960s by developing the Wankel rotary engine?

    Answer: Mazda

  74. 74.Which American engineer invented the electric self-starter first fitted to the 1912 Cadillac?

    Answer: Charles F. Kettering

  75. 75.What name is given to the German motorway system, parts of which have no general speed limit?

    Answer: The Autobahn

  76. 76.Which Volvo engineer developed the modern three-point seat belt, introduced in 1959?

    Answer: Nils Bohlin

  77. 77.In what year was "Hold-And-Modify" introduced: 1981, 1984, 1985 or 1990?

    Answer: 1985

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  78. 78.In what year was "Video Graphics Array" introduced: 1984, 1985, 1987 or 1990?

    Answer: 1987

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  79. 79.Which company manufactured the RM Nimbus: Research Machines, Plessey company plc, Jupiter Cantab or Acorn Computers?

    Answer: Research Machines

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  80. 80.Which company manufactured the ZX Spectrum: Thorn EMI Datatech, Sinclair Research, Plessey company plc or Miles Gordon Technology?

    Answer: Sinclair Research

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  81. 81.Which company manufactured the GEC 4000 series: Ferranti Plc, Memotech, Plessey company plc or GEC Computers Ltd?

    Answer: GEC Computers Ltd

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  82. 82.Who designed "Citroën BX": Philip T. Clark, Jean François, Giorgetto Giugiaro of Italdesign or Marcello Gandini of Bertone?

    Answer: Marcello Gandini of Bertone

    Read the full explanationLearn more on Codexery: Citroën BX
  83. 83.Who designed "Ford Ka": Chris Svensson, Jean François, Sixten Sason or Philip T. Clark?

    Answer: Chris Svensson

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  84. 84.Who designed "Delahaye 135": Jean François, Marcello Gandini of Bertone, Harris Mann or Pininfarina?

    Answer: Jean François

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  85. 85.In what year was aircraft component Satair founded: 1906, 1925, 1933 or 1957?

    Answer: 1957

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  86. 86.Which company developed "Wire strike protection system": Bristol Aerospace, Virginius E. Clark, Consolidated Aircraft or Willard Ray Custer?

    Answer: Bristol Aerospace

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  87. 87.Which company developed "Davis wing": Willard Ray Custer, Consolidated Aircraft, Bristol Aerospace or Virginius E. Clark?

    Answer: Consolidated Aircraft

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  88. 88.Who designed "ArmaLite AR-10": Eugene Stoner, Fedor Tokarev, John Browning or L.L. Hepburn?

    Answer: Eugene Stoner

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  89. 89.Who designed "Winchester Model 1894": Ambrose Burnside, John Browning, Fedor Tokarev or Sako?

    Answer: John Browning

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  90. 90.Which company manufactured the LF-58: FN Herstal, Zastava Arms, Luigi Franchi or Fabrique Nationale?

    Answer: Luigi Franchi

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  91. 91.In what year was "Ruger Mini-14" introduced: 1973, 1993, 1995 or 2008?

    Answer: 1973

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  92. 92.Which company manufactured the FN CAL: Fabrique Nationale, ST Engineering, Colt or Barrett Firearms?

    Answer: Fabrique Nationale

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  93. 93.In what year was "STG-556" introduced: 1995, 2007, 2008 or 2015?

    Answer: 2007

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  94. 94.Which company manufactured the CVAX: Motorola Semiconductor Products Sector, National Semiconductor, Digital Equipment Corporation or Harris Semiconductor?

    Answer: Digital Equipment Corporation

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  95. 95.Which company manufactured the Pentium 4: Intel, Inmos, Advanced Micro Devices or Digital Equipment Corporation?

    Answer: Intel

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  96. 96.Who invented the Asphalt shingle: Alan Adler, Thomas Edison, German chemist Otto Röhm or Henry Reynolds?

    Answer: Henry Reynolds

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  97. 97.Who invented the Aerial work platform: Jeff Abel, James McLurkin, Jay Eitel or Alan Adler?

    Answer: Jay Eitel

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  98. 98.Who invented the AeroPress: German chemist Otto Röhm, Alan Adler, Jay Eitel or James McLurkin?

    Answer: Alan Adler

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  99. 99.Who invented the amberola: Thomas Edison, James McLurkin, Jeff Abel or Jay Eitel?

    Answer: Thomas Edison

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  100. 100.Who invented the Ant robotics: James McLurkin, Jay Eitel, German chemist Otto Röhm or Thomas Edison?

    Answer: James McLurkin

    Read the full explanationLearn more on Codexery: Ant robotics

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