Final answer:
The question is about whether to use EFIS or EFD for a cockpit check in a Generic Instrument Taxi.
Step-by-step explanation:
The question is asking about whether the cockpit check in a Generic Instrument Taxi should be done using EFIS or EFD, which are both types of electronic flight instruments.
EFIS stands for Electronic Flight Instrument System and it provides a digital display of primary flight information such as airspeed, altitude, attitude, heading, and navigation data. It is commonly used in modern aircraft.
EFD stands for Electronic Flight Display and it is a simplified version of EFIS, providing essential flight information in a more compact format. EFDs are often used as a backup instrument or in smaller aircraft.