11 - Navigation, FMC

Question 1

If during preflight you happen to move the IRS selected to ATT, what do you have to do in order to get normal IRS function back.

Answer 1

Turn it to off, wait until the ALIGN light goes away, then set back to NAV

Question 2

Where do you enter the present position for the IRS during preflight

Answer 2

POS INIT

Question 3

During recall, the GPS light + master caution and IRS on the systems panel show up, but goes away during master recall reset. What has happened

Answer 3

One GPS unit has failed

Question 4

The lower DU shows what when you press SYS

Answer 4

Hydraulic pressure and quantity

Question 5

Where can you see groundspeed on the CDU

Answer 5

POS REF page 2

Question 6

If the ON DC light illuminates for an IRS, where does it draw power?

Answer 6

The switched hot battery bus

Question 7

When the FMC alerts OVERSPEED DISCONNECT during a VNAV PATH descent, what has happened

Answer 7

Speed has increased to more than 15 knots above the speed restriction (usually 250 <10,000)

Question 8

If GROSS WT is not available from the FMC, what will the approach page look like

Answer 8

Box prompts

Question 9

To see position data from both GPS units, which page do you select

Answer 9

POS REF page 2/3

Question 10

What information are you left with if you move the IRS switch to ATT

Answer 10

Position and Heading only

Question 11

When will you get the alert RESET MCP ALT on the scratchpad

Answer 11

If within 5 miles of the TOD and no lower altitude selected on the MCP

Question 12

What has happened, and what must you do if the scratchpad message VERIFY GW AND FUEL appears

Answer 12

The FMC are no longer getting real time fuel indications, you will have to enter the fuel into the FMC manually, and will be prompted to do so every 30 minutes

Question 13

Where can you select MAX ANGLE and MAX RATE climbs for the FMC

Answer 13

CLB page

Question 14

The A/C is not certified for operations above/below which latitude?

Answer 14

82N 82S

Question 15

What does the alert BUFFET MARGIN indicate

Answer 15

Your maneuver margin is currently less than specified

Question 16

What does the alert INSUFFICIENT FUEL signify

Answer 16

That predicted fuel at destination is now less than 900kg

Question 17

What is the normal power source for the Left and Right IRS

Answer 17

Left: AC standby bus
Right: Transfer bus 2

Question 18

What is the standby power source for both IRS

Answer 18

Switched hot battery bus

Question 19

How long will the right IRS stay powered in case of a loss of AC power

Answer 19

5 minutes

Question 20

When do you get the alert DRAG REQUIRED

Answer 20

If your airspeed has increased to more than 10kts from target speed or within 5kts of Vmo/Mmo (when trying to keep a VNAV PATH)

Question 21

How many navaid and airports can you store in the temp data base

Answer 21

40 navaids, 6 airports

Question 22

On the IRS display, what do you get in the right window if you select HDG/STS

Answer 22

Time remaining until alignment

Question 23

What provides the A/T with N1 limit values

Answer 23

The FMC

Question 24

What happens to the RTE page if you change the nav database after the route has been entered

Answer 24

It will go blank, and has to be re-entered

Question 25

What does the alert VERIFY POSITION mean

Answer 25

That position information is contradictory

Question 26

A fast re-alignment takes how long?

Answer 26

30 seconds

Question 27

What happens if you pitch until the Pitch Limit Indication (PLI) on the PFD

Answer 27

Stick shaker will activate