42 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.What does the amateur radio term 'CQ' mean when transmitted?
Answer: Calling any station
Read the full explanation2.What does the Q-code 'QTH' mean in amateur radio communication?
Answer: My location is...
Read the full explanation3.What does the abbreviation 'FPV' stand for in the context of drone piloting?
Answer: First Person View
Read the full explanation4.What does ESC stand for in the context of electric RC vehicles?
Answer: Electronic Speed Controller
Read the full explanation5.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)
Read the full explanation6.What refresh rate, measured in hertz, became the standard baseline for competitive gaming monitors, doubling the traditional 60Hz?
Answer: 144Hz
Read the full explanation7.What competitive first-person shooter, developed by Riot Games and released in 2020, combines precise gunplay with character-based abilities?
Answer: Valorant
Read the full explanation8.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)
Read the full explanation9.What ionospheric layer is primarily responsible for long-distance HF radio propagation during the daytime?
Answer: F2 layer
Read the full explanation10.What is the highest class of amateur radio license in the United States, granting full privileges on all bands?
Answer: Amateur Extra
Read the full explanation11.What frequency band, measured in GHz, do most modern RC transmitters use to avoid interference?
Answer: 2.4 GHz
Read the full explanation12.What year was the first iPhone released?
Answer: 2007
Read the full explanation13.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
Read the full explanation14.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
Read the full explanation15.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
Read the full explanation16.What does CPU stand for in computing?
Answer: Central Processing Unit
Read the full explanation17.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)
Read the full explanation18.What remote identification requirement, often called 'digital license plates,' was mandated by the FAA for most drones starting in 2024?
Answer: Remote ID
Read the full explanation19.What polling rate, measured in hertz, do most high-end gaming mice now offer to minimize the delay between physical movement and on-screen cursor response?
Answer: 8000Hz (8K)
Read the full explanation20.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 explanation21.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
Read the full explanation22.What type of RC car chassis features the motor and drivetrain mounted along the center spine for balanced weight distribution?
Answer: Mid-motor layout
Read the full explanation23.What does the term '1/10 scale' mean when describing an RC car?
Answer: One-tenth real car size
Read the full explanation24.What is the maximum altitude that recreational drone pilots are legally allowed to fly in the United States without special authorization?
Answer: 400 feet
Read the full explanation25.In drone racing, what does the 'S' rating on a LiPo battery indicate, such as '4S' or '6S'?
Answer: Number of cells in series
Read the full explanation26.What is the name for the spinning propeller configuration where four rotors are arranged symmetrically, the most common multirotor design?
Answer: Quadcopter
Read the full explanation27.What type of shock absorber, filled with silicone oil, is standard on hobby-grade RC vehicles?
Answer: Oil-filled shocks
Read the full explanation28.What famous RC racing organization, founded in 1975, sanctions competitive off-road and on-road events worldwide?
Answer: ROAR
Read the full explanation29.What Chinese technology company manufactures the Mavic, Phantom, and Air series of consumer drones?
Answer: DJI
Read the full explanation30.What U.S. federal agency requires recreational drone pilots to register aircraft weighing over 250 grams?
Answer: FAA (Federal Aviation Administration)
Read the full explanation31.What nitro fuel percentage is most commonly used in hobby-grade nitro RC cars?
Answer: 20%
Read the full explanation32.Who co-founded Apple Computer with Steve Jobs?
Answer: Steve Wozniak
Read the full explanation33.What component in an RC car converts the rotary motion of the motor into different wheel speeds during turns?
Answer: Differential
Read the full explanation34.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)
Read the full explanation35.What digital mode, developed by Nobel Prize-winning physicist Joe Taylor, allows amateur radio operators to make contacts with extremely weak signals?
Answer: FT8
Read the full explanation36.What NVIDIA technology synchronizes the GPU's frame output with the monitor's refresh rate to eliminate screen tearing?
Answer: G-Sync
Read the full explanation37.What battery chemistry, abbreviated LiPo, is most commonly used in high-performance RC vehicles?
Answer: Lithium polymer
Read the full explanation38.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)
Read the full explanation39.What memory specification, critical for gaming PC performance, describes the speed at which RAM can transfer data, measured in megatransfers per second?
Answer: DDR5 (or memory clock speed)
Read the full explanation40.What does 'GPU' stand for, the component most critical for gaming performance in modern PCs?
Answer: Graphics Processing Unit
Read the full explanation41.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)
Read the full explanation42.What type of RC motor uses magnets and coils without physical contact brushes, offering higher efficiency?
Answer: Brushless motor
Read the full explanation