External / Avionics, Flight Instruments Flashcards
Where is the main battery located?
Nose compartment
The 115V external power receptacle is located?
Forward right nose area
Where is the APU battery located?
Aft equipment bay
Where is the crew oxygen bottle located?
Forward of passenger door
What is indicated if the green blowout disk is blown?
Excessive pressure has occurred (greater than 2800 psi)
Will the flight deck P.A. override the flight attendant P.A.?
Yes
How should we contact the flight attendant in an emergency?
Turn the audio panel selector knob t0 P.A., push emergency call switchlight to generate three high/low chimes and a flashing red light on the F.A.’s overhead panel
What indication do we get if the flight attendant 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 a SELCAL advisory EICAS message of an ACARS message
How many Air Data Computers (ADC) are installed on the CRJ900?
Two
How many AHRS computers are installed?
Two
In MAG mode, how long does it take the AHRS system to initialize?
30 to 70 seconds
In DG mode, how long does it take the AHRS system to inialize?
10 to 11 minutes
From which source do the captain’s flight instruments receive AHRS information?
AHRS 1 IRS 1
From which source do the first officer’s flight instruments recieve AHRS information?
AHRS 2 IRS 2
From which source do the captain’s flight instruments receive pitot/static information?
System#1 pitot/static tube on left side of nose
From which source do the FO’s flight instruments receive pitot/static information?
System#2 on the right side of nose
From which source does the integrated standby instruments receive pitot/static information?
System #3 standby pitot under captain’s side window and two alternate static ports, one on left and one on the right side
Where is the TAT probe located?
Under the 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 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 of no changes are made
When and where will the MACH readout appear?
Appears when accelerating through 0.45 Mach. Disappears when decelerating through 0.4 Mach. Appears just above the airspeed tape in white.
What does the green line in 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 below the sky pointer.
How many flight directors are installed?
Two
How many auto-pilots are installed?
One
What does the autopilot follow when engaged?
The selected side flight director which defaults to the captain’s FD. The XFER button must be selected on the flight control panel to transfer to the FO’s FD
What happens when the TOGA is pushed on the ground?
TO lateral mode
TO vertical mode
FMS aligns the aircraft at the end of the runway indicated on legs page, Autopilot disengages
What does TO lateral mode do?
On the ground, it generates a wings level command.
After takeoff, it generates a heading hold command with a 5 degree bank limit using the heading existing at takeoff.
What does TO vertical mode do?
Generates an optimized pitch up attitude for takeoff.
What happens when TOGO is pushed in flight?
GA lateral mode
GA vertical mode
Missed Approach procedure depiction appears on the MFD if instrument approach procedure selected in FMS
Autopilot Disengages
What does GA lateral mode do?
Same at TO lateral mode and follows heading flown when TOGA was pushed.
What does GA vertical mode do?
Generates a 10 degree pitch up attitude.
