1. During normal operation each respective wing tank provides fuel to :
2. The crossfeed operations should not be performed during :
3. Crossfeed selector knob LOW1 opens the crossfeed valve and automatically activates the right AC fuel pump (AC PUMP 2), supplying fuel to both engines from :
4. The purpose of the engine fuel SOV is to prevent fuel from entering fire zones :
5. What is the maximum operational fuel imbalance ?
