Navigation Flashcards
When must the IRS be aligned?
Whenthe time from the last full alignment to the next expected arrival time exceeds 18 hours.
Why is important to put the IRS units to OFF, prior to shutting off the aircraft?
They will automatically switch to the APU Hot Battery Bus when ac power is removed.
If Backup DC power to an IRU fails, the EICAS Message ________ displays.
IRS DC CENTER, LEFT, or RIGHT
If an IRS position is not entered before the IRSs finish alignment, what message displays?
SET IRS POS
T/F: The IRS is the sole source of attitude and heading signals to the AFDS, PFD, and ND.
True
What are the radio navigation available of the 747-400?
VOR
DME
ADF
ILS
The B747-400 is equipped with ______ ILS system(s).
3
The DMEs are primarily tuned automatically by the _______.
FMC
Which mode allows the Transponder to provide TCAS Traffic and Resolution Advisories?
TA/RA
Which mode allows the Transponder to provide only TCAS Traffic Advisories?
Note: it is usually selected after an engine failure to inhibit Resolution Advisories.
TA
Which mode allows the Transponder to operate with altitude reporting - but with no TCAS?
ALT ON
When the FMS provides a message to the flight crew, it is displayed _____________.
On the CDU scratchpadd
Which key can be used to clear data from the left or right side lines of the CDU?
DEL Key
Which of these areas on a CDU page require a pilot entry?
Lines with blocks
Once the IRS switches have been placed in the NAV, what coordinates are normally used for the SET IRS POS entry on the POS INIT page.
GPS POS displayed at 4R
T/F: Preflight pages consist of Route preflight pages and Performance preflight pages.
True
How is the fuel value entered in the RESERVES block on the PERF INIT page obtained?
Directly from the flight plan RES value
What occurs when the last V speed value is entered or selected on the TAKEOFF REF page?
The amber NO V SPD indication on thePFD airspeed tape is replaced be a green V1 and is associated value parked at the top of the tape.
