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E-175; Systems > Flight Instruments > Flashcards

Flight Instruments Flashcards

1
Q

The speed trend vector is ___ in color and indicates where the airspeed is predicted to be in ___ seconds.

A

White, 10 seconds.

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2
Q

What is Green Dot on the airspeed, and what is it used for?

A 
Indicates at least 1.3g over shaker speed at a 40* bank. Compensates for configuration and ice.
Used for:
Maneuvering Speed
Minimum Flying Speed
Driftdown Speed
Holding Speed
Ideal Flap Extension Speed
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3
Q

What is the green airplane on the PFD?

A

Flight Path Angle. Shows the actual path of the airplane through the sky. Put the FPA over the pink flight director.

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4
Q

What is the green > next to the FPA director?

A

Acceleration Pointer.

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5
Q

What is the green vertical line to the left of the FPA airplane?

A

Speed Error Tape.

Shows difference between actual and selected airspeed.

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6
Q

What does the altitude trend vector indicate (white bar next to the altitude read out).

A

Where your altitude is predicted to be in 6 seconds.

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7
Q

The PLIs (pitch limit indicators) will change color. Explain.

A

Green = Ok for normal flight
Amber = Caution
Red = Shaker activation
The PLI simply shows the pitch which the stick shaker will activate. The color goes from green to amber to red the closer you get to the PLI as you pitch up towards it

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8
Q

What is the yellow area on the Low-Speed Awareness Tape?

Red?

A 
Yellow = caution range.
Red = Stick shaker activation speed (3-7% above aerodynamic stall).
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9
Q

What does the reversionary panel do?

What does the AUTO position do?

A

It controls what is shown on the MFD.
If the PFD or EICAS fail, the failed screen is displayed on the MFD. If both fail, the PFD has priority.
Switch will not work if you position it in a way where at least one PFD is not visible in the cockpit.

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10
Q

What does the ADS button do on the reversionary panel?

What are the ADS defaults?

A 
Changes ADS source.
CA's PFD defaults to Air Data System 1 
FO's PFD defaults to ADS 2 
ADS 3 is a dedicated backup 
ADS 4 is dedicated to the IESS
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11
Q

What will happen if the CA’s or FO’s ADS (Air Data System) input fails?

A

They will automatically revert to ADS 3, which is the dedicated backup. If ADS 3 is unavailable they will revert to cross-side data.

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12
Q

What are the IRS defaults?

What happens when one fails?

A

CA’s PFD = IRS 1. FO’s PFD = IRS 2.
Reversion to the operating IRS is automatic, however if it fails to revert, press the IRS button on the reversionary panel.

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13
Q

How do you start, stop, and reset the chronometer (timer)?

Where is the timer displayed?

A

By pressing the CHRONO button on the yoke.
Press once to start the timer.
Press again to stop.
Press again to reset.

Displayed on the PFD (just under, and to the right of the altimeter setting.
There is a backup Chrono on the clock above the gear handle.

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14
Q

What are the three different displays shown by pressing the HSI button on the guidance panel?

A

Compass (full HSI)
Arc (partial HSI)
Map (moving map)

Set to Compass or Arc on the originating

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15
Q

How do you display weather radar on the PFD?

A

Press the HSI button till you are in MAP mode, then select the WX button.
Note: because the MFD can also display WX and it is a larger display, this function is rarely used.

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16
Q

-At ___ miles from the destination Preview Needles are automatically selected as long as the approach is loaded and the radios are in auto tune.
(Note: verify the proper course with the approach chart)
What happens if you press the PREV button?

A 
150 miles.
* 1st press = ONSIDE preview 
*2nd press = CROSSSIDE preview 
*3rd press = Off 
(Note: if one side is selected to CROSSSIDE, both CA and FO sides turn amber
17
Q

What happens if Magenta Needles are already selected and you press the FMS button?
What happens if Green Needles are already selected and you press the V/L button?

A

CROSSSIDE FMS navigation is selected
Note: if one side is selected to CROSSSIDE both CA and FO HSI needles turn amber.

Same thing happens for green needles if V/L is selected a second time.

18
Q

How do you display an ILS on the IESS (Integrated Electronic Standby System)?

A

Press the ILS button on the IESS.

19
Q

On the top line of the clock above the gear handle there is a backup Chronometer timer. What is the timer below the clock labeled ET?

A

Elapsed Time.
It automatically starts on liftoff.
Can be reset on the ground by moving the switch to RST between flights.

20
Q

How do you manually set the clock if GPS time is unavailable?

A

Move the switch from GPS to SET. Then press the round knob on the left labeled SET to cycle between minute/hour/year/month/day. Rotate this knob to change things.

21
Q

How many compass correction cards are there?

Where are they?

A

Two. (must check both on the originating check).

One is located by the standby compass and the other is located by the CA’s Reversionary Panel.

22
Q

What does the Air Data System (ADS) consist of?

A

Air Data Smart Probes (ADSP), Total Air Temperature (TAT), Air Data Applications (ADA).

23
Q

What are the Air Data Smart Probes (ADSP) composed of?

What do they sense and transmit?

A

Multifunction probes and the air data computer.

The ADSP/TAT will sense and transmit static pressure, total pressure, AoA and TAT to the ADS.

24
Q

How is AoA calculated in the ADSP’s?

A

AoA is calculated based on an interface between the static pressure of the smart probes.

25
Q

What does the Air Data Application (ADA) compute?

A

It computes final air data (alt, speed, etc) and transmits this info to the specific airplane systems (PFD, stall protection system, etc.).

26
Q

What’s Static Air Temperature (SAT)?

A

Temperature of the air surrounding the plane.

27
Q

Whats Total Air Temperature (TAT)?

A

Temperature of the air experienced by the moving airplane. As the airplane moves through the air it is compressed and heated. Used for icing awareness.

28
Q

What’s True Air Speed (TAS)?

A

Speed at which an airplane is moving relative to the air that surrounds it. TAS at cruise compared to the release for performance awareness.

E-175; Systems (15 decks)

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