Mesa Airlines E-JET Systems Study Guide All Questions with correct answers

How many networks make up the electrical system on the airplane? Why? CORRECT ANSWER-2 independent networks Redundancy and fault isolation What happens if a power generating source fails? CORRECT ANSWER-Bus ties automatically connect to provide no system degradation What components power the AC system? CORRECT ANSWER-2 Integrated Drive Generators (IDG) Auxiliary Power Unit (APU) Inverter Ram Air Turbine (RAT) AC GPU receptacle What components power the DC system? CORRECT ANSWER-2 NiCad batteries 3 Transformer Rectifier Units (TRU) DC GPU receptacle How does the IDG maintain a stable power output? CORRECT ANSWER-A Constant Speed Drive (CSD) attaches the IDG to the AGB (Accessory Gear Box) What monitors and controls the IDG's? CORRECT ANSWER-Each has a Generator Control Unit (GCU)