Avionics, Flight instruments Flashcards
How should we contact the flight attendant in the emergency?
Turn the audio panel selector knob to PA, push the EMER call switch light to generate three high/low chimes and a flashing red light on the FA’s overhead panel
Will the flight deck PA override the flight attendant PA?
Yes
What indication do we get if the FA is calling the flight deck because of an emergency in the cabin?
We hear one high/low chime and the EMER call switch light will be flashing
How do we know if the company is trying to contact us?
“SELCAL, SELCAL” voice aural and SELCAL advisory EICAS message or an ACARS message
How many ADC’s are installed on the CRJ900’s?
Two
How many AHRS computers are installed?
Two
In MAG mode, how long does it take the AHRS to initialize?
30 to 70 seconds
In DG mode, how long does it take the AHRS to initialize?
10 to 11 minutes
From which source do the captain’s flight instruments receive AHRS Information?
AHRS 1 or IRS 1
From which source do the FO flight instruments receive AHRS information?
AHRS 2 or IRS 2
From which source do the captain’s flight instruments receive pitot/static information?
System #1, pitot/static tube on the left hand side of the nose
From which source do the FO’s flight instruments receive pitot/static information?
System #2, pitot/static tube on the right side of nose
From which source does the integrated standby instrument receive pitot/static information?
System #3, standby pitot under captain’s side window and two alternate static ports, one on left side, and one on the right side.
Where is the TAT probe located?
Under FO’s side window
What is the definition of Total Air Temperature?
The temperature of the air corrected for compressibility and friction caused by high speed
On the ground with the probe heat ON, which probes are heated?
All pitot probes are heated half way, all others are fully heated except the TAT probe, which is not heated on the ground
In flight, which probes are heated?
All are fully heated regardless of probe heat switch position
Is there a LOC and GS indication on the standby attitude indicator?
Yes, referencing NAV 1
When and where will the radio altitude information appear?
0 to 2500’ AGL indicated in green below the altitude tape
What does the speed trend vector indicate?
Predicted airspeed in 10 seconds if no changes are made
What does the green line on the airspeed tape indicate?
1.27 Vs based on current configuration. Not accurate at high altitudes
Where is the slip and skid indicator located?
A rectangle located just under the sky pointer
How many flight directors are installed?
Two
How many autopilots are installed?
One
