What is the primary function of the stall warning indicator?

• A. To indicate the position of the flaps
• B. To alert the pilot when nearing a stall condition
• C. To show engine power levels
• D. To display navigation accuracy

Answer: (B)

The primary function of the stall warning indicator is to alert the pilot when the aircraft is nearing a stall condition. A stall occurs when the angle of attack exceeds a critical level, resulting in a significant loss of lift. The stall warning indicator is a critical safety feature in the cockpit that helps prevent unintentional stalls by providing an early warning to the pilot. This allows the pilot to take corrective action, such as reducing the angle of attack or increasing throttle, to maintain control of the aircraft and avoid a potential loss of altitude or control. Understanding the operation and purpose of the stall warning indicator is vital for safe flight operations, especially during critical phases of flight such as takeoff and landing.

The other options relate to functions that are not directly associated with the stall warning indicator. For instance, the indication of flaps, engine power levels, and navigation accuracy serve different aspects of flight management and safety but do not pertain to stall warning, which specifically focuses on impending stalling situations.