Question id 281 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license

Alternating current and produces an alternating current on output.
Direct current and produces a direct current on output.
Direct current and produces an alternating current output.
Alternating current and produces a direct current on output.

Training tests and timed exam simulations ATPL - Airline Transport Pilot license