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* B777 CATHEY STUDY GUIDE COPY > NAVIGATION > Flashcards

NAVIGATION Flashcards

1
Q

B777?

A

2

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2
Q

Which CDU page shows the GPS position?

A

POS REF 3/3 page

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3
Q

How can GPS position be displayed on the ND?

A

By selecting the POS switch on the EFIS control panel

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4
Q

What does the EICAS message “GPS” indicate?

A

When data from both GPS systems are unavailable or when both systems have failed

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5
Q

Can GPS navigation be inhibited?

A

Yes, by using the GPS NAV promt on the POS REF page

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6
Q

Is the ADIRU required for GPS navigation?

A

No

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7
Q

List the 4 parameters supplied by the ADIRS?

A
  1. Altitude
  2. Airspeed
  3. Attitude
  4. Hdg and postion
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8
Q

What Components make up the ADIRS?

A

The ADIRU, SAARU and air data modules

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9
Q

What bus power is required in order to turn the ADIRU on?

A

The BAT BUS

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10
Q

When can the ADIRU switch be used to turn the ADIRU off?

A

On the ground only

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11
Q

How is the ADIRU hot battery bus operation indicated on the ground?

A

ON BAT illuminates

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12
Q

What level is the ADIRU ALIGN MODE message?

A

EICAS memo

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13
Q

What does the ADIRU/ORIGIN disagree scratchpad message indicate?

A

Position error entry

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14
Q

How can the ADIRU mode be verified?

A

When operating normally there is no annunciation regarding the ADIRU. If in align mode this will be indicated by EICAS ADIRU ALIGN MODE

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15
Q

When does the automatic re-align mode occur?

A

If the aircraft stops for an extended period

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16
Q

What can the SAARU supply after an ADIRU failiure?

A

Attitude
Heading
Air data

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17
Q

How long does the SAARU supply backup heading for?

A

Three minutes

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18
Q

When can the crew set the SAARU heading?

A

3 min after ADIRU failiure

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19
Q

How will the crew know that a heading update is required?

A

There are no reminders other than the SET HDG promt on the CDU POS INIT page

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20
Q

On which CDU page is the SAARU heading set?

A

CDU POS INIT page

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21
Q

What will provide pilots air data after failiure of the ADIRU?

A

The SAARU

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22
Q

What is the pilots normal source for Air Data?

A

ADIRU

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23
Q

When will single channel air data occur?

A

When the ADIRU and the SAARU air data are invalid

24
Q

Which air data channel supplies the standby instrument?

A

The centre air data channel

25
Q

After an ADIRU and SAARU failiure, what will provide captains air data?

A

Single channel air data

26
Q

Which air data channel supplies the ISFD?

A

Centre air data channel

27
Q

Can the ADFs be tuned automatically?

A

No

28
Q

How are the DMEs tuned manually?

A

By entering the VOR portion of the VOR/DME pair on the NAV RADIO page

29
Q

After a dual FMC failiure, when is the DME tuned to an ILS DME?

A

The EFIS control panel ND mode selector must be set to APP

30
Q

Which CDU page displays the DME stations being used for radio updating?

A

POS/REF 2/3

31
Q

What are the two conditions for FMC ILS tuning?

A

Within 50nm from TOD and 150nm from the runway or the FMC is in the descent mode

32
Q

When should the pilots audibly verify the identification of a tuned navigation station?

A

When the tuned frequency remains display or an incorrect identifier displays

33
Q

How are the VOR radios tuned after a dual FMC failiure?

A

Via the CDU ALTN NAV radio page

34
Q

Where can the VOR/DME stations being used for radio updates be seen?

A

The POS REF page 2/3, as well as the NAV/RAD page and the ND

35
Q

In flight, when will the selected transponder activate beacon and altitude reporting?

A

In modes: XPNDR, TA ONLY and TA/RA

36
Q

When will the transponder function for Aircraft position monitoring on ground?

A

In any mode other than standby

37
Q

What other functions can be enabled for the transponder?

A

TCAS
TA/RA
Air data
ADS-B

38
Q

What EFIS modes are compatible with weather radar?

A

Expanded display for VOR and APP as well as both MAP and MAP CENTERED

39
Q

How is the weather radar transciver turned ON?

A

The WXR switch on the EFIS control panel

40
Q

What type of turbulence can be predicted by the weather radar?

A

Turbulence in sufficient precipitation

41
Q

What type of windshear detection is available from the weather radar?

A

Predictive windshear alerting

42
Q

What type of advisories does TCAS provide?

A

Traffic advisories and

Resolution advisories

43
Q

What EFIS modes are compatible with TCAS displays?

A

Both map modes and the expanded modes of VOR and APP

44
Q

When will an RA be issued?

A

20 - 30 sec before an aircraft enters the conflict zone

45
Q

What is the vertical distance of proximate traffic?

A

+-1200 ft

46
Q

What are the PFD indications for an RA?

A

Filled red square

47
Q

When should TA only be selected?

A

When flying with one engine inoperative

48
Q

What are GPWS immediate alerts based upon?

A

Radio altimeter
Glideslope
Aircraft configuration
Rate of descent

49
Q

Can an obstacle and terrain alert be displayed simultaneosly?

A

No, obstacle replaces terrain

50
Q

What terrain is displayed on the ND?

A

When the aircraft is lower than 2’000 ft above the terrain, all obstacles and terrain within 2’000 ft of aircraft barometric altitude

51
Q

How does selection of TERRAIN on one side and WXR on the other side affect the displays?

A

Each display updates on alternating sweeps of the antenna

52
Q

Which system displays immediate windshear alerts?

A

The PFD

53
Q

When are PWS alerts enabled?

A

12 seconds after weather radar begins scanning for windshear. Below 1’200 RA

54
Q

Does PWS require the weather radar to be switched ON?

A

Prior to take-off, yes

In flight below 1’200 ft RA, no

55
Q

How many pitot tubes and static ports are there?

A

3 Pitot tubes

6 static ports

56
Q

How many angle of attack sensors are there?

A

2

57
Q

How many TAT probes are there?

A

1

* B777 CATHEY STUDY GUIDE COPY (21 decks)

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