CHAPTER 34

Question 1

How many different ways can you can tune the VOR?

Answer 1

3 - Auto FMGEC, Manual MCDU and Manual on the RMP (On side only Captains RMP VOR 1 & FOs RMP for VOR 2)

Question 2

What supplies power to the ADMs?

Answer 2

The associated ADIRU

Question 3

What does an ADM do?

Answer 3

Converts pressure inputs to ARINC bus digital information for the ADIRU

Question 4

What is contained In a strapdown Inertial Reference System (IRS)?

Answer 4

3 x Accelerometers and 3 x Ring laser gyros

Question 5

Which ADIRU is fed from the Stby Pitot probe?

Answer 5

Number 3

Question 6

What indication is there that the ADM pneumatic connection is correct?

Answer 6

A visible blue ring on the connector indicates correct connection.

Question 7

Which ADIRUs feed the DDRMI?

Answer 7

ADIRU 1 & 3

Question 8

How long does a normal alignment of the IRS system take?

Answer 8

10 Minutes

Question 9

At what North or South latitude is it not possible to align the IRS system?

Answer 9

82 degrees

Question 10

How do you perform a fast realignment?

Answer 10

You can do a fast realignment with the selector switch, which must be turned from NAV to OFF and then back to NAV in less than 5 seconds.
The Inertial Reference (IR) starts a 30-second realignment with existing attitude, heading angles and velocities set to zero.

Question 11

What indication do you get on the ISIS if your airspeed data is not valid?

Answer 11

When the airspeed data is not valid, the airspeed scale is replaced by a red SPD flag.

Question 12

What systems are contained in the The Multi-Mode Receiver LRU?

Answer 12

MMR = ILS + GPS.

Question 13

Where is the MKR receiver installed?

Answer 13

2 identical VOR/MKR receivers are fitted but only 1 MKR system is wired on the aircraft

Question 14

How do you you tune an ILS Glideslope frequency?

Answer 14

By tuning to the paired ILS Localiser frequency

Question 15

How many satellites make up the aircraft GPS system?

Answer 15

The spatial segment is composed of a constellation of 24 satellites.
These satellites are arranged in six separate orbital planes of four satellites each on a circular orbit.

Question 16

How many satellites does the GPS system require for accurate aircraft position calculation?

Answer 16

At least 4

Question 17

What colour is the ILS information displayed on the ND?

Answer 17

ILS information is displayed in magenta

Question 18

Normally how is ILS 1 information displayed?

Answer 18

The ILS 1 information is displayed on PFD 1 and ND 2

Question 19

What is displayed and where if GPS signal is lost?

Answer 19

GPS PRIMARY LOST on the NDs

Question 20

What ?is the purpose of the CFDIU?

Answer 20

The Centralized Fault Display Interface Unit (CFDIU) enables tests and trouble shooting to be carried out on the MMR system using the MCDU.

Question 21

When can you use the CFDIU for testing?

Answer 21

The test can be done only on ground

Question 22

What principle does RAD ALT operate with?

Answer 22

The time between the transmission and the reception of the RA signal is proportional to the A/C height.

Question 23

What is RAD ALTs operating range?

Answer 23

RAD ALT operates from 0 ft to 2.500 ft.

Question 24

Where are the RAD ALT LRUs located on the aircraft?

Answer 24

AFT Cargo compartment

Question 25

where do TCAS (or T2CAS) indications appear?

Answer 25

Both the PFDs and the NDs.

Question 26

What is the purpose of the SUPPRESSOR in the TCAS system?

Answer 26

ATC and the Distance Measurement Equipment (DME) operate in the same frequency range. A suppressor signal is transmitted by the operating system to inhibit the other systems and to prevent simultaneous transmission.

Question 27

In the TCAS system where is the barometric altitude transmitted from?

Answer 27

The barometric altitude is transmitted via the ATC transponder.

Question 28

How can the TCAS system be tested?

Answer 28

The Centralized Fault Display Interface Unit (CFDIU) allows testing and trouble-shooting of the TCAS (or T2CAS if installed) through the MCDU. The tests are only available on ground.

Question 29

Various discrete signals are used for inhibition by equipment with higher priority than the TCAS (or T2CAS). What are these systems?

Answer 29

1, Stall 2, WindShear 3, Predictive WindShear (PWS) 4, Enhanced Ground Proximity Warning System (EGPWS) messages.

Question 30

The Distance Measuring Equipment (DME) provides range details of what?

Answer 30

The Distance Measuring Equipment (DME) provides a digital readout of the aircraft slant range distance from a selected ground station.

Question 31

What LRU is responsible for flight leg counting in the Navigation systems?

Answer 31

Each Landing Gear Control and Interface Unit (LGCIU) sends a discrete signal to the associated DME interrogator. This is ground/flight information used for BITE testing inhibits and to count the flight legs.

Question 32

The ADF is a radio navigation aid, what does it provide?

Answer 32

The relative bearing of the aircraft to a selected ground station called Non-Directional Beacon (NDB)

Question 33

How is ADF 1 and ADF 2 displayed on the NDs and optional DDRMI?

Answer 33

ADF 1 is represented by a single pointer ADF 2 is represented by a double pointer

Question 34

The VOR system is a radio navigation aid, what does it provide?

Answer 34

The VOR system calculates a bearing with respect to magnetic north between the ground station and the aircraft axis. Furthermore, the VOR station provides a Morse identification, which identifies the station.

Question 35

The MKR system is a radio navigation aid used in conjunction with ILS, what does it provide?

Answer 35

When the aircraft overflies the MKR, the type of MKR is display on the PFDs in different colours, and is indicated by an aural identification.