Aircraft Systems Knowldge (Navigation)

Question 1

What happens when you press either guarded NAV key on RMP 1 or 2?

Answer 1

Returns control of the NAV radios to the FMCG

Turns off the green light

Question 2

After pressing either guarded NAV key on RMP 1 or RMP 2 what happenes if you press the NAV key a second time?

Answer 2

REturns control of the NAV radios to the FMGC

Question 3

Why would you press the guarded NA pb on an RMP?

Answer 3

Dual MCDU/FMGC failure

Question 4

How does positioning the GAIN knob slightly (clockwise) out of the AUTO position affect display of radar returns on the ND?

Answer 4

Gain would then be manually set to MINIMUM (this would be potentially dangerous)

Question 5

Assume Radar system was selected OFF and WINDSHEAR was selected to AUTO. Windshear is predicted ahead of your flight path. Will you recieve a Predictive Windeshear alert?

Answer 5

Yes the Predictive windshear function is activated even if the Weather Radar transceiver selector is in the OFF position.

Question 6

When using STBY NAV, how would you change a VHF 1 radio frequency?

(4 things)

Answer 6

Select VHF 1

Enter new frequency in STBY

Transfer frequency to Active

Do not turn OFF the NAV key

Question 7

Which portion of the system (ADR or IR) provides Attitude and Heading info?

(ADIRS Panel)

Answer 7

IR

Question 8

When will the ON BAT light illuminate?

(ADIRS Panel)

Answer 8

When one or more IR(s) is supplied by only the aircraft battery.

As a test

Question 9

What external indication(s) will alert personnel that the IR’s are ON BAT?

Answer 9

An external horn sounds, ADIRU-AVNCS BLUE LIGHT illuminates on EXTERNAL POWER panel, except during test.

Question 10

What is indicated by a flight IR FAULT light?

Answer 10

Flashes amber when attitude and heading may be recovered in ATT mode.

Question 11

What is indicated by a flashing ALIGN light?

(4 reasons)

(ADIRS Panel)

Answer 11

1. IR alignment fault
2. No present position entry after 10 minutes
3. Difference between position at shutdown and entered position exceeds 1 degree of LAT or LONG
4. A/C Movement

Question 12

What is indicated by a steady IR FAULT light?

(ADIRS Panel)

Answer 12

Illuminates steady amber when the respective IR is lost

Question 13

Which portion of the system (ADR or IR) provides barometric altitude, airspeed, and AOA information?

Answer 13

ADR

Question 14

When persorming the Abnormal V Alpha Prot memory items, which controld should be used to select OFF 2 of 3 ADRs?

Answer 14

ADR pb not a rotary switch.

Question 15

Why does SOP require that the ATC Selector be operated in position 1?

(XPDR panel)

Answer 15

Only system 1 is available in emergency electrical configuration.