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E175 Systems > Flight Instruments Comms/Nav/FMS > Flashcards

Flight Instruments Comms/Nav/FMS Flashcards

1
Q

Which DUs can be reverted?

A

Only DU 2 and 4

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2
Q

Which DU’s only operate as PFDs?

A

DU 1 and 5

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3
Q

Is DU 3 always an EICAS?

A

Yes.

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4
Q

What does the Reversionary Panel Displays knob do?

A

Changes the MFD DU screens 2 and 4

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5
Q

What are the 3 main sections of the Guidance Panel?

A 
Flight Guidance Panel (Center)
Display Controller (FO and CA)
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6
Q

What does the HSI button do?

A

Toggles between full HSI and partial HSI (arc view)

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7
Q

What does the WX button do?

A

Selects WX data for display in the HSI

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8
Q

What does the FMS button do?

A

Toggles between FMS sources 1 and 2

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9
Q

What are the BRG buttons on the Display Controller?

A

Toggles between VOR, ADF, and FMS bearing sources. The circle is for system 1. The diamond is for system 2.

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10
Q

What does the V/L button do?

A

Toggles between short range navigation sources

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11
Q

What does the FPR button do?

A

Turns the FPR Flight Path Reference line on the EADI on and off

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12
Q

What miscompare flags could appear on the PFD in amber boxes?

A 
CAS
PIT
CAS MSG
RA
ALT
FPA
GS
HDG
LOC
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13
Q

What synoptic pages are available on the MFD?

A 
Status
Flight Ctrl
Hydraulics
Fuel
Electrical
ECS
Anti-Ice
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14
Q

What does the display knob do in the AUTO position?

A

Automatically presents the display information of the display that is failed on the MFD

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15
Q

In the event of an electrical emergency, will the reversionary panel display knob work?

A

No. The MFD will be the PFD. That is the only option for the MFD.

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16
Q

What happens when the Reversionary Panel Sensors IRS button is pressed?

A

The attitude and heading system information will change to the cross-side IRS data.

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17
Q

When will the EICAS automatically declutter?

A

Clean config, flaps and gear up for more than 3sec, and none of the declutter system parameters have been exceeded

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18
Q

What items on the EICAS are decluttered?

A 
Oil Pressure and Temp
Low and High Pressure Vibration
Gear Position
Flap/Slat/Speedbrake Position
Takeoff band on the pitch trim scale
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19
Q

What does the EICAS Full button do?

A

Displays all of the decluttered items

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20
Q

What does the ADC mounted to the ADSP sense and compute?

A

Senses: total pressure, static pressure, local angle of attack AOA

Processes: TAT Total Air Temperature

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21
Q

What indications on the PFD does the ADSP provide?

A

Airspeed
Mach
Altitude
AOA

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22
Q

What systems use air data information from the ADSP?

A

Stall protection, flight controls, among many others

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23
Q

If ADS 1 or ADS 2 fail, what will automatic reversion do?

A

Replace the information with ADS 3

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24
Q

If the ADS button is pressed twice, what will happen?

A

The ADS 3 reversion will change to the cross-side ADS. If pushed for a third time, the ADS will revert to the original ADS.

25
Q

Where is ADS temperature and wind information provided?

A

On the top right corner of the MFD in flight only

26
Q

How is the ADS probe heat provided?

A

A single heating element heats the ADSP and is controlled and monitored by the ADC mounted to the probe.

27
Q

What are the holes on the MFP Multifunction probe (ADS)?

A

Total Pressure Port (Ram air hole)

2 Alpha pressure ports (on the side just behind the total pressure port)

2 drain holes (towards the middle on the sides)

28
Q

How are pressures measured and computed inside the ADC?

A

2 Absolute pressure sensors read the pressure from the total pressure port and the Alpha port inside the ADC

A differential pressure sensor measures the difference in pressure data between the Apha pressure ports

From the 3 measured pressures above, the ADC calculates the local total pressure, local static pressure, and local AOA

29
Q

What powers the IESS?

A

28VDC power from Essential DC Bus 2

30
Q

What provides air data to the IESS?

A

ADSP 3 (air data source) and 4 (compensation data source)

31
Q

In the AUTO mode when does the clock elapsed time counter begin?

A

No WOW and stops when WOW

32
Q

How is the compass light controlled?

A

STBY/CLK dimmer on the lighting control panel

33
Q

What is the purpose of the static wicks?

A

To decrease the dangerous effects of lightning discharge to the airframe and to decrease the interference static electricity causes to radio communication.

34
Q

What does ASCB stand for?

A

Avionics Standard Communication Bus

35
Q

What does pushing out the MIC button on the audio panel do?

A

Manually activates the mask mic when auto mode (pushed in) fails

36
Q

What connects the VHF antennas to the audio panel?

A

Antenna signals are sent to the MRC Modular Radio Cabinet, to the Audio Bus, to the respective audio panel

37
Q

What is lost comms indicated by on the MCDU?

A

Amber dashes in the comm frequencies on the RADIO page

38
Q

What is the HF comm button used for?

A

Long-range communications
Operates in the HF radio band from 2.00-29.99MHz
Page 2 of the RADIO page will show the HF radio data for tuning

39
Q

What happens when the CAB button is pressed on the Audio Panel?

A

The button flashes and the green rainbow light illuminates and a chime sounds. The button flashes faster once the FA has picked up the call. Push once more to establish communication and turn the light steady green.

40
Q

What happens when the EMER button is pressed on the Audio Panel?

A

A triple hi-lo chime is sounded through the PA system and a steady red rainbow light illuminates. The same triple hi-lo chime will sound if the FA makes an emergency call to the cockpit.

41
Q

There are 3 ramp headphone jack locations. Where are they?

A

AC GPU panel
Mid Avionics Bay
DC GPU panel

42
Q

Where is the ramp call horn located?

A

The horn itself is in the nosewheel gear bay to alert the ground crew. The horn buttons are on the left and right consoles by the oxygen masks.

43
Q

What is the PA priority?

A

Pilots, FA, Pre-recorded announcements, music system

44
Q

When can the DVDR be erased?

A

When on the ground with the parking brake set

45
Q

When does the CVR begin and end recording?

A

As soon as power is supplied and stops when power is removed

46
Q

When does the FDR begin and end recording?

A

When the engines are turned on or when the aircraft is in the air. It stops when WOW and both engines are turned off.

47
Q

What does the IRS Inertial Reference System compute?

A

Airplane Position
GS
Heading
Attitude

48
Q

How does the IRS know the starting location of the aircraft?

A

Via the GPS by loading the GPS position in the MCDU

49
Q

What happens if IRS is pressed in flight?

A

The IRS source switches and FD modes disengage, AP modes disengage, and can be re-engaged

50
Q

What are the various GPS fault messages that can appear on the MCDU?

A

GPS RAIM ABOVE LIMITS (Lost Integrity)
RAIM WILL EXCEED LIMIT (Integrity exceeds the limit)
GPS RAIM UNAVAILABLE (RAIM not available)

51
Q

Where might the ADF feature be installed?

A

RADIO page 2

52
Q

What type of transponder is installed?

A

Mode S

53
Q

How many transponders are installed?

A

2

54
Q

Is it possible to activate VNAV on the ground?

A

Yes. It will automatically activate at 400’ AGL

55
Q

Can VNAV exceed the set altitude in the altiude selector?

A

No. The altitude set must be above or below the current altitude for the aircraft to change altitudes in VNAV mode.

56
Q

What is VTA? When is it?

A

VTA Vertical Track Alert
Issued 60sec before the FMS commands a climb, descent, or 1000’ before the level off altitude.

There is no VTA if the leveling-off is based on the altitude set in the Altitude Selector.

57
Q

What does the FMS button do?

A

Makes FMS the primary navigation source and toggles between FMS sources.

58
Q

What is the box on the top left and bottom left of the FMA?

A

Top Left: Capture Autothrottle Mode

Bottom Left: Armed Autothrottle Mode

E175 Systems (18 decks)

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