Q. What are the full forms of the following abbreviations: FADEC, SDAC, FCDC, ACARS, CIDS, ROPS, RPCU, CDLS and CFDS?

FADEC	Full Authority Digital Engine Control
SDAC	System Data Acquisition Concentrator
FCDC	Flight Control Data Concentrator
ACARS	Aircraft Communications Addressing and Reporting System
CIDS	Cabin Intercommunication Data System
ROPS	Runway Overrun Prevention System
RPCU	Residual Pressure Control Unit
CDLS	Cockpit Door Locking System
CFDS	Centralized Fault Display System
RPWS	Residual Pressure Warning System