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Part 121 - CRJ 701/900 > Flight Instruments > Flashcards

Flight Instruments Flashcards

1
Q

How many primary pitot probes and what are their components?

A

2 primary pitot probes (left and right) each one has 1 pitot source and 2 static sources

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2
Q

The alternate static system consists of:

A

Two static ports and one pitot probe

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3
Q

The _____ provides attitude and heading information to the EFIS

A

AHRS

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4
Q

If AHRS data is lost, the opposite side AHRS signal and display are selected by using:

A

The ATTD HDG selector on the Source Select Panel

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5
Q

When should AHRS initialization take place?

A

Automatically when the battery master is turned on.

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6
Q

What are the components of the EFIS system?

A
  1. Display Reversionary Panels (DCPs)
  2. Electronic Flight Displays (EFDs)
  3. Source Selector Panel
  4. Display control panels (DCPs)
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7
Q

If I wan’t to transfer MFD information to the PFD, what should i do?

A

Transferring MFD information to the PFD is NOT possible.

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8
Q

The panel used to transfer the PFD display to the adjacent MFD is:

A

the Display Reversionary Panel (DRP)

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9
Q

The Source select panel on the center console is used to:

A

Select alternate sources for critical system display

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10
Q

What indicates the aircraft drift angle in relationship to a programmed FMS route?

A

The green doughnut… (drift angle pointer)

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11
Q

Can bearing angle pointers be displayed on both the MFD and the PFD?

A

YUP

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12
Q

What does a YELLOW “PIT” box by the attitude indicator on the PFD tell you?

A

The pitch difference is >4 degrees before glide slope capture and >3 degrees after between the two AHRS

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13
Q

Can the weather overlay be presented in all MFD modes?

A

No, only on:

  1. NAV SECTOR
  2. FMS MAP
  3. TCAS
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14
Q

The FDR records how far back?

A

The last 25 hours

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15
Q

What is the difference between PFD and standby air data information?

A

Standby is raw data

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16
Q

If shooting an ILS approach, with only the standby instrument, what are some considerations?

A

Can only use NAV 1 with it tuned into a valid ILS frequency.

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17
Q

What is the the purpose of the IAP?

A

The integrated avionics processing system compares the R ADC and L ADC together and decides whether their matching or not.

18
Q

What is a situation we would take off in the DG mode instead of MAG mode?

A

If we were in an area of known magnetic anomaly, we would set it to DG mode and use SLEW to align it with the runway.

19
Q

What is the purpose of the remote compensating unit (RCU)?

A

The RCUs will get rid of turning errors: UNOS and ANDs

20
Q

What is the MFD Page that we should to use while in flight?

A

FMS map, with terrain, and TCAS overplayed over that

21
Q

What will happen to EFIS when passing through 31,600’?

A

Airspeed will be shown in MACH, 1/2 rate of turn will be activated.

22
Q

How can you transition through MFD Navigation displays?

A

The Display Control Panel

23
Q

How do you display traffic on the FMS map display?

A

Ensure the scale is 40nm or below on the FMS map display and then select traffic

24
Q

Where is the top of the low speed cue?

A

1.06 Vs in landing gear configuration

25
Q

Low-Speed awareness cue is located where? And what is it indicated as?

A

It’s a green line that indicates 25% above stick shaker speed

26
Q

When will indicated MACH be displayed above the airspeed tape?

A

When the aircraft accelerates through .45M and when passing through 31,600’

27
Q

When is MACH removed from the Airspeed indicator?

A

When slowing below .40M

28
Q

If a “EFIS COMP MON” is displayed, where do you look to get more information?

A

The PFD

29
Q

Where does the Integrated Standby Instrument Receive it’s power from?

A

DC BATT BUS

30
Q

S3 ports are connected to the ________ and provide static pressure to:

A
  1. The ISI

2. Cabin Pressure Controller

31
Q

ADC purpose

A

Convert pitot static info to electronic signals to produce airspeed and altitude data

32
Q

AHC

A

Attitude and heading computer

33
Q

AHRS consists of

A

2 AHCs
2 Flux detectors
2 Remote compensator units
A compass control panel

34
Q

Location of flux detectors

A

Wing tips.

35
Q

When is DG mode selected.

A

When operating around magnetic disturbances

36
Q

When does AHRS initialization take place?

A

When electrical power is applied to the aircraft

37
Q

What do comparators do?

A

Continually compares its onside AHRS data with the offside AHRS data

38
Q

When a comparator error is detected, what will happen?

A

Flashing amber data message e.g “HDG” “ROLL” “PIT” “IAS” “ALT” “RA” “FD” “LOC” “GS”

39
Q

Amber HDG on PFD is a ________.

A

Comparator Error

40
Q

ISI is powered by the:

A

Battery Bus

Part 121 - CRJ 701/900 (25 decks)

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