FAA Ground School Practice Test

Ground effect is most likely to result in which problem?

1. Increased fuel consumption during flight

2. Becoming airborne before reaching recommended takeoff speed

3. Inability to maintain altitude during landing

4. Excessive drag during climb

The correct answer is: Becoming airborne before reaching recommended takeoff speed

Ground effect is a phenomenon that occurs when an aircraft is close to the ground, typically within one wingspan's height. This effect reduces drag and increases lift, making it easier for the aircraft to become airborne. As a result, the aircraft may lift off at a lower speed than what is typically recommended for takeoff. This can lead to a situation where the aircraft becomes airborne before it reaches the proper takeoff speed needed for safe flight. When the aircraft takes off prematurely, it may not have enough speed or proper airflow over the wings, which can lead to difficulties in climbing or maintaining a safe climb rate. Proper awareness of ground effect is crucial for pilots during takeoff, as it reinforces the importance of adhering to recommended speeds to ensure a safe departure. The other options do not directly relate to the effects of ground proximity on the aircraft during takeoff. Increased fuel consumption during flight is more about a cruise phase rather than the specific takeoff dynamics influenced by ground effect. Inability to maintain altitude during landing and excessive drag during climb pertain to different flight phases and scenarios that are not primarily impacted by ground effect during takeoff.