Which components provide the necessary pressure to the ADC?

The primary pitot probe and primary static ports are critical components used in aircraft to provide accurate air data needed for flight instruments. These components measure dynamic and static pressure, which the Air Data Computer (ADC) requires to calculate essential information such as airspeed, altitude, and vertical speed.

The primary pitot probe captures the dynamic pressure of the air as the aircraft moves through it. This pressure reflects the aircraft's airspeed. Meanwhile, the primary static ports measure the ambient air pressure outside the aircraft, which is essential for determining altitude and rate of climb.

Together, these measurements are fed into the ADC, allowing it to perform necessary computations for flight dynamics. Having accurate readings from both the pitot probe and static ports is crucial for safe and effective flight operations, as misleading data can lead to erroneous instrument indications and potentially dangerous situations.

Other components mentioned in the choices do not serve the same purpose. Engine pressure sensors primarily monitor engine performance parameters, pressure gauges are used for various measurements but not specifically for generating the pressure that the ADC requires, and static dischargers serve to reduce static electricity accumulation rather than to provide pressure data.