Communication & Flight Instruments

Question 1

If the primary airplane power fails how does the PACIS receive power?

Answer 1

emergency lighting battery packs

Question 2

How long does the Cockpit Voice Recorder (CVR) record?

Answer 2

the last two hours

Question 3

How long does the Flight Data Recorder (FDR) record?

Answer 3

25 hours

Question 4

When does the FDR begin recording?

Answer 4

anti-collision light set to RED or WHITE, both engines running, airplane is airborne

Question 5

What happens when the ARCDU is in EMER mode?

Answer 5

the pilots headset and microphones are directly routed to VHF1
the pilots interphone and navigation receiver are directly routed to the headset

Question 6

FLIGHT DATA RECORDER caution light

Answer 6

flight data recorder malfunction or it is not energized

Question 7

EFIS ADC SOURCE reversion selector

Answer 7

provides the crew with the ability to control the Air Data Computer source

Question 8

EFIS ATT/HDG SOURCE reversion selector

Answer 8

provides the crew with the ability to control the AHRS source on the EFIS

Question 9

Altitude mismatch threshold

Answer 9

ground - 60 ft

increases to 180 ft at FL 270

Question 10

Automatic screen reversion

Answer 10

ED fails and is automatically transferred to MFD 1

Question 11

The Attitude and Heading Reference System (AHRS) consists of: 4 things

Answer 11

two AHRS control panels
two Attitude/Heading Reference Units
two remote flux valves
two remote Memory Modules

Question 12

The Attitude and Heading Reference Units (AHRU 1/AHRU 2) supply specific altitude and heading parameters directly to the following systems:

Answer 12

Electronic Attitude Direction Indicator
Electronic Horizontal Situation Indicator
Altitude
Intertial Vertical Speed Indicators

Question 13

The AHRS operating modes are:

Answer 13

Alignment
NORMAL or BASIC mode for attitude
SLAVED or DG mode for heading

Question 14

When does AHRS alignment mode start and how long does it take?

Answer 14

automatically starts at the end of a 5 second power on self test, manual realignment mode takes approximately 60 seconds on the ground and 90 seconds in flight

Question 15

Describe AHRS NORMAL mode.

Answer 15

AHRUs use their associated ADUs parameters for attitude and automatically calculates and corrects for errors

Question 16

Describe AHRS SLAVE mode.

Answer 16

AHRU slaves its internal heading with analog magnetic heading information as calculated from analog signals from the flux valve and automatically compensates for heading errors

Question 17

Describe AHRS BASIC mode.

Answer 17

automatically activated when the TAS parameter becomes unavailable, causes decreases attitude accuracy, EADI will behave like a conventional mechanical gimbaled gyro

Question 18

Describe AHRS BASIC mode.

Answer 18

automatically activated when the TAS parameter becomes unavailable, causes decreased attitude accuracy, EADI will behave like a conventional mechanical gimbaled gyro

Question 19

What does the PACIS provide?

Answer 19

Private voice communication between Flight Deck and Cabin Crewmember (CALL or EMER), visual and aural notification of interphone calls