FAA Aircraft Dispatcher Practice Exam

What is the function of a Continuous Descent Approach (CDA)?

1. To increase fuel consumption

2. To enhance takeoff efficiency

3. To minimize noise and fuel burn

4. To maximize passenger comfort

The correct answer is: To minimize noise and fuel burn

A Continuous Descent Approach (CDA) is designed primarily to minimize noise and fuel burn during the landing phase of an aircraft. This approach allows aircraft to descend continuously from cruising altitude to the runway without the need for level-offs, which can be inefficient and contribute to increased noise pollution. By maintaining a steady descent, the CDA capitalizes on the aircraft’s energy and optimally manages engine thrust, leading to reduced fuel consumption. This method also results in quieter operations, particularly beneficial when flying over populated areas, as it avoids the more aggressive descent profiles that can generate excessive noise. The continuous nature of the descent promotes a smoother landing process, benefiting both the environment and operational efficiency. In contrast, other options such as increasing fuel consumption, enhancing takeoff efficiency, or maximizing passenger comfort do not align with the primary goals of a Continuous Descent Approach. The focus is specifically on environmental impact and operational efficiency rather than takeoff or comfort aspects.