EFD stands for which term?

• A. Electronic Fuel Device
• B. Electronic Flight Display
• C. Engine Fault Diagnosis
• D. Emergency Flight Data

Answer: (B)

The main idea here is the name for the cockpit display system that presents flight information in a digital format. Electronic Flight Display refers to the screens in a glass cockpit that show the essential flight data—airspeed, altitude, attitude, heading, vertical speed, and navigation data—in a cohesive, easily readable way. This digital presentation replaces traditional analog gauges and is a central part of modern flight decks, making it the appropriate expansion of EFD.

The other options don’t fit because they describe concepts not used to name the cockpit display system: electronic fuel device would imply a fuel-related component, engine fault diagnosis points to a diagnostic function rather than the display itself, and emergency flight data refers to data collected for emergencies rather than the display term.