Question 1

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

Accepted Answer

Calling any station

Question 2

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

Accepted Answer

My location is...

Question 3

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

Accepted Answer

First Person View

Question 4

What does ESC stand for in the context of electric RC vehicles?

Accepted Answer

Electronic Speed Controller

Question 5

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

Accepted Answer

ActiveTrack (or Follow Me mode)

Question 6

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

Accepted Answer

144Hz

Question 7

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

Accepted Answer

Valorant

Question 8

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

Accepted Answer

GPS hover (or position hold)

Question 9

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

Accepted Answer

F2 layer

Question 10

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

Accepted Answer

Amateur Extra

Question 11

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

Accepted Answer

2.4 GHz

Question 12

What year was the first iPhone released?

Accepted Answer

2007

Question 13

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

Accepted Answer

Dipole antenna

Question 14

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

Accepted Answer

Field Day

Question 15

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

Accepted Answer

Maidenhead Locator System

Question 16

What does CPU stand for in computing?

Accepted Answer

Central Processing Unit

Question 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?

Accepted Answer

Input lag (or latency)

Question 18

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

Accepted Answer

Remote ID

Question 19

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

Accepted Answer

Lee Sang-hyeok

Question 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?

Accepted Answer

The International

Question 21

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

Accepted Answer

Mid-motor layout

Question 22

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

Accepted Answer

One-tenth real car size

Question 23

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

Accepted Answer

400 feet

Question 24

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

Accepted Answer

Number of cells in series

Question 25

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

Accepted Answer

Quadcopter

Question 26

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

Accepted Answer

Oil-filled shocks

Question 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?

Accepted Answer

ROAR (Remotely Operated Auto Racers)

Question 28

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

Accepted Answer

DJI

Question 29

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

Accepted Answer

FAA (Federal Aviation Administration)

Question 30

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

Accepted Answer

20%

Question 31

Who co-founded Apple Computer with Steve Jobs?

Accepted Answer

Steve Wozniak

Question 32

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

Accepted Answer

Differential

Question 33

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

Accepted Answer

2-meter band (144 MHz)

Question 34

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

Accepted Answer

FT8

Question 35

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

Accepted Answer

G-Sync

Question 36

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

Accepted Answer

Lithium polymer

Question 37

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

Accepted Answer

Cherry MX Red (or linear switch)

Question 38

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

Accepted Answer

Graphics Processing Unit

Question 39

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

Accepted Answer

LiPo (Lithium Polymer)

Question 40

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

Accepted Answer

Brushless motor

Question 41

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

Accepted Answer

AMD

Question 42

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

Accepted Answer

Irvine, California, US

Question 43

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

Accepted Answer

Champaign, Illinois, United States

Question 44

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

Accepted Answer

1949

Question 45

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?

Accepted Answer

ThrustSSC

Question 46

Which Scottish engineer introduced the term "horsepower"?

Accepted Answer

James Watt

Question 47

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

Accepted Answer

The Jeep

Question 48

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

Accepted Answer

Mazda

Question 49

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

Accepted Answer

Charles F. Kettering

Question 50

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

Accepted Answer

The Autobahn

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