A Stand-by-horizon or emergency attitude indicator:

Question

Question ATPL - Airline Transport Pilot license - Aircraft General Knowledge - Instrumentation

QuizVDS · Accepted Answer

Contains its own separate gyro

QuizVDS · Answer

Is automatically connected to the primary vertical gyro if the alternator fails

QuizVDS · Answer

Is fully independent of external energy resources in an emergency situation

QuizVDS · Answer

Only works of there is a complete electrical failure

Id 31 - ATPL - A Stand-by-horizon or emergency attitude indicator: