Flight Instruments Flashcards
Where do the Mach/Airspeed indicators receive data from?
ADC’s
How many symbol generators (SG) are there on the B767?
3
Which instrument source selector controls the data input for the FO’s RDMI heading?
Captain’s IRS Switch
What does the Pitch Limit Indicator on the ADI represent?
Pitch limit at which stick shaker occurs for existing flight conditions.
The left IRS will normally feed Attitude and Heading information to:
The Left Symbol Generator and the F/O’s RMI.
If a Fault is indicated on the Left IRS, the Captain should:
Set his instrument source IRS to ALTN.
The IRS presents Magnetic Heading information:
Between 73 degrees North and 60 degrees South Latitudes.
When aligning the IRS’s it will normally take how long?
10 minutes
During alignment, flashing ALIGN lights could mean:
The system sensed movement of the aircraft, present position has not been entered or entered position disagrees in excess of limits with last position.
Where can localizer and glideslope information be displayed?
Captain and F/O’s ADI, HSI, and Standby Attitude Indicators.
Which of the F/O’s instrument indications are connected to the right data sources?
All except RDMI
Which source selector controls the data source for the F/O’s RDMI?
Captain’s IRS switch.
Which instrument source select switch should be selected to the ALTERNATE position if the MAP flag is displayed on a HSI?
FMC switch
Which of the following indicates an ADI power loss?
A blank ADI display.
With ATT flag on the ADI and a flag on the Vertical Speed Indicator, you should push which instrument source switch?
IRS
How do main altimeters work?
Electrically, they receive altitude signals from the Air Data Computer.
What happens if the vertical speed indicator receives an invalid vertical speed signal?
OFF flag appears
Which Source Switches control the signal to the Vertical Speed Indicator?
IRS
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 in the ADI?
When the associated FD Switch is ON and the system is supplying valid commands.
What do these ILS indications mean: no pointers on the scales.
ILS is tuned but signals are not received.
What do these indications mean: no scales and an amber LOC and /or GS?
ILS system malfunction.
Which instrument source selector switch controls the data source for the FO’s RDMI heading?
Captain’s IRS switch.
What is the source of magnetic heading?
Inertial Reference System.
Which Instrument Source Selector Switch should be selected to alternate if an ADI and HSI lose their displays?
EFI Switch.
The VOR pointer has disappeared, what does this indicate?
The VOR is out of range.
What is indicated by the IRS ON DC lights momentarily illuminating during preflight alignment?
The IRS is testing the power from the main airplane batter.
During a normal IRS alignment, when does ALIGN light extinguish?
When the IRS enters NAV mode.
With any IRS ALIGN lights illuminated, are there any restrictions on moving the airplane.
Yes, the airplane should not be moved.
What inputs are required by the IRS system before it can enter the NAV mode from the ALIGN mode?
Airplane latitude and longitude.
Which ILS information is displayed on the ADI’s when an ILS frequency is not selected?
Neither the ILS scales nor the ILS pointers are diplayed.
Which pitot system supplies the standby airspeed indicator?
Auxiliary
The VSI receives its source of information for vertical speed from?
IRS’s
Where do the RDMI’s receive heading data from?
IRS’s
From what source does the captain’s ADI normally receive attitude signals?
Left IRS
Where is the radio altitude displayed?
ADI
What indicates the flight directors are not supplying valid commands.
Command bars out of view or a flag in the ADI.
How many Air Data Computers are there?
2
Which flight instruments receive inputs directly from the Pitot-Static system, not utilizing the ADC’s and therefore display uncorrected information.
Standby Altimeter and Standby Airspeed Indicator
What system calculates data for determining TAS, SAT, TAT?
ADC
Where can an alternate source of air data be selected?
Captain or FO’s instrument source select panel.
Which clock provides GMT to the FMC’s?
Captain’s
LOC and G/S flags displayed on the STBY ADI are an indication of what?
Center ILS recever has failed.
Where is the total air temperature, (TAT) displayed?
Primary EICAS screen.
The standby altimeter and airspeed indicators receive signals from the ADC.
False
The power source for Integrated Standby Flight Display (ISFD) in the center instrument panel is?
Standby DC
