A device used for flight in the air is defined as which term?

• A. Aircraft
• B. Airship
• C. Airframe
• D. Airplane

Answer: (A)

Aircraft is the broad term for any machine designed to fly in the air. This category includes airplanes, helicopters, balloons, gliders, and airships. An airship is a specific type of aircraft that uses buoyancy from lighter-than-air gas, so it’s part of the broader aircraft category rather than the general term itself. The airframe refers to the vehicle’s structural frame, not the whole device. An airplane is a particular kind of aircraft with fixed wings and propulsion, not the general term either. So the best answer is aircraft because it covers all devices used for flight in the air.