Flight Instruments Atlas Flashcards
Where do the Mach/airspeed indicator receive data from?
The air data computers
How many symbol generators (SG) are on the 767?
Three
Which instrument source selector controls the data import for the FO’s RDMI heading?
Captains IRS switch
What does the pitch limit indicator (PLI) on the ADI represent?
Pitch limit at which stick shaker occurs for existing flight conditions
**Check in class for correct wording
The left IRU will normally feed attitude and heading information to?
The left symbol generator and the FO’s RMI
If a FAULT is indicated on the left IRU, The captain should?
Select his instrument Source IRS to ALTN
The IRS presents magnetic heading information:
Between 73° north and 60° south latitudes
When are lining the IRU’s it will normally take how long?
10 minutes
During alignment, flashing ALIGN lights could mean?
The system sensed wheel movement of the aircraft
Present position has not been entered
Entered position disagrees in excess of limits with last position
Where can localiser and glide slope information be displayed?
Captain and FOs ADI, HSI, and standby attitude indicators
Which of the FO’s instrument indications are connected to the right data sources?
All except the RDMI heading
Which instrument source select switch should be displayed to the ALTERNATE position if the MAP flag is displayed on the HSI?
FMC switch
A blank ADI display indicates what?
ADI power loss
With an ATT flag on the ADI and a flag on the vertical speed indicator, you should push which instruments source switch?
IRS
How do the main altimeters work?
Electrically and receive altitude signals from the air data computer
What happens if the vertical speed indicator receives an invalid vertical speed signal?
An OFF flag appears
Which source select switch should be selected if the ADI and HSI go blank?
EFI
In which mode(s) can radar returns be displayed on the HSI?
Map
Expanded VOR
Expanded ILS
When can the flight director command bars be displayed on the ADI?
When the associated FD switch is ON and the system is supplying valid commands
What will you see if ILS is tuned but a signal is not yet being received?
ILS localiser and glide slope scales will be shown without their pointers
What is the source of magnetic heading?
Inertial reference system
The VOR pointer has disappeared, what does this indicate?
The VOR is out of range
What is indicated by the IRU ON DC lights momentarily illuminating during pre-flight alignment?
The IRU is testing the power from the main aeroplane battery
During the normal IRS alignment, when does ALIGN light extinguish?
When the IRS enters NAV mode
