Center of Gravity (CG) refers to which concept in aviation?

• A. The engine thrust setting
• B. The center of gravity of the aircraft depending on weight and balance of the loads
• C. The wing span measurement
• D. The aircraft registration number

Answer: (B)

Center of gravity is the balance point of the aircraft. It shifts as weight is moved or as fuel is used, because loading distribution—passengers, baggage, cargo, and fuel—all change where the weight sits along the fuselage. This position affects stability, controllability, and performance, which is why we talk about the CG being within a specific allowable range for safe flight. The other options don’t describe this concept: engine thrust settings relate to propulsion, wing span is a structural dimension, and the registration number is just an identifier.