Which statement best describes the Primary Flight Display (PFD)?

• A. Replaces only the attitude indicator.
• B. Displays horizon, airspeed, altitude, vertical speed, trend, trim, and rate of turn.
• C. Displays weather radar only.
• D. Displays flight plan only.

Answer: (B)

The Primary Flight Display integrates the essential flight information you need for immediate situational awareness in one screen. The horizon line shows the aircraft’s attitude, with speed and altitude data presented on surrounding scales, and vertical speed indicating climb or descent rate. You also get a trend vector that forecasts where those values will be in the near future, helping you anticipate necessary adjustments. A trim indicator shows current stabilizer trim position, and a rate of turn indicator tells you how quickly you’re turning, which is critical for coordinated flight and staying on course. These elements together make the PFD the main source of core flight information.

Weather radar or flight plan details aren’t displayed on the PFD itself; weather radar typically appears on a separate weather or navigation display, and the flight plan is handled by the FMS or moving-map pages on other displays.