Chapter 11 - Flight Management, Navigation Flashcards by JJ Tsunoda

Magnetic variation stored in each IRS memory is between:

82 degrees N and 82 degrees S.

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LNAV will engage if:

(2x)

The airplane is within 3 nm of the LNAV course and/or
If the airplane is on an intercept heading of 90 degrees or less and the intercept will occur before the active waypoint.

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An acceptable required time of arrival entry found on the ACT RTA PROGRESS page 2/3 is:

103045B.

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If an engine fails during flight selecting the MOD ENGINE OUT CRZ page provides:

Information only. The execute light does not illuminate

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Which data is available by line selecting the RTE DATA prompt on the ACT RTE LEGS page?

ETA and forecast wind data for each cruise waypoint.

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When an active database expires in flight:

The expired database continues to be used until the active date is changed after landing.

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The FMC supplies a default required navigation performance (RNP) value that:

is used for takeoff, enroute, oceanic, terminal, and approach phases of flight

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What does the DES NOW prompt on the PATH DES page provide?

Execution allows early initiation of a PATH descent at 1000 FPM until intercepting the computed path.

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During an IRS alignment a flashing white ALIGN light indicates alignment cannot be completed due to IRS detection of:

a. entered Lat/Long is not within 4nm of origin airport.
b. no present position has been entered.
c. entered Lat / Long does not pass the IRS internal comparison test.
d. all of the answers are correct

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The transition altitude of the PERF INIT page:

can change if a different departure is selected with a different transition altitude.

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Zero fuel weight is

Automatically displayed if airplane gross weight is entered first and fuel on board is valid.

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After completing the FMC CDU pre-flight actions, you look at the POS INIT page again.

The SET IRS POS line is missing. What is required?

Nothing. This is a normal indication once both IRSs have transitioned to the navigation mode.

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A company route (CO ROUTE):

Is called up from the navigation database by entering the route identifier.

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Which factor is not considered in the TRIP/CRZ computation?

RESERVES

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What does MOD on the RTE LEGS page indicate?

The route has been altered.

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Bypass notification occurs on the RTE LEGS page when:

it is impossible for the airplane to turn and fly the course to the next waypoint.

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The SELECT DESIRED waypoint page

is automatically displayed when the FMC encounters more than one location for the
same waypoint name

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On the RTE page invalid VIA entries are:

Airways or company routes which do not contain the TO waypoint of the previous line

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On the DEP/ARR INDEX page:

DEP/ARR information on the OTHER line will be displayed for the airport entered in the scratchpad.

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Standard Instrument Departures (SIDS):

are displayed on the DEPARTURE page for all airport runways.

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The FIX INFO page:

will display an ETA and DTG when a distance entered intersects the active route.

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When aligning the IRS between 78 degrees 15 minutes North and South latitude:

Alignment time will vary from 5 minutes to 17 minutes depending on the airplane latitude.

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The fuel quantity displayed on the PROGRESS page 1/3 is

total fuel quantity remaining direct from the airplane fuel quantity indication system.

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Waypoints on the RIE LEGS page can be entered and moved. This includes:

a. adding new waypoints.
b. deleting existing waypoints.
c. re-sequencing existing waypoints.
d. All of the answers are correct.

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The purpose of the FIX INFO page is to:

a. identify waypoint fixes for display on the navigation display. b. copy fix information into the route, if desired. c. determine ETA and DTG where a radial or distance intersects the active route. d. All the answers are correct

Descend now (DES NOW)

on the PATH DES page, execution allows early initiation of a PATH descent at 1000 fpm until intercepting the computed path.

To climb in the shortest horizontal distance, MAX ANGLE should be selected on this FMC page:

CLB

On the FMC CDU, how is the MOD CRZ CLB page automatically displayed?

Entering a higher cruise altitude on the CRZ page.

On the CRZ page, the Turbulence N1 (TURB N1)

displays proper N1 for turbulence penetration. The value is for reference only. It is not commanded to the A/T.

LNAV modifications include

a. Adding and deleting waypoints. b. linking discontinuities. c. intercepting a course. d. All of the answers are correct

In the FMC, a lateral offset may be specified up to 99.9 miles. Some legs are invalid for offset. One of these is:

route discontinuity.

During cruise, the primary FMC pages are:

RTE LEGS, PROGRESS and CRZ

The Vref speeds displayed on the APPROACH REF page:

once selected, will not be updated unless deleted or different speed is entered

The HOLD page:

a. is used to enter a holding pattern into the route. b. entries make route modifications, which can be erased or executed. c. has two versions possible. d. all the answers are correct.

The FMC Advisory Message BUFFET ALERT indicates:

current conditions result in a manoeuvre margin less than specified

The FMC Alerting Message SELECT MODE AFTER RTA means:

the RTA mode has been discontinued due to sequencing of the RTA waypoint.

After RTA waypoint entry, the displayed ETA is based on:

performance parameters at the time of waypoint entry.

Speed restriction (SPD REST) displays the most restrictive of the following speeds:

minimum flaps up manoeuvring speed.

Which of the following parameters related to the present vertical path do the Vertical Path Parameters (FPA, V/B, V/S) display?

V/B-vertical bearing direct from the present position on the WPT/ALT line

When airplane gross weight is not available from the FMC, the Approach Ref page display will be:

box prompts

What information is available with the IRS mode selector in ATT?

Only attitude and heading information.

Normal IRS alignment is initiated by rotating the MSU switch from OFF to:

NAV.

When the IRSs are operating in the normal navigation mode they provide:

a. attitude and true and magnetic heading. b. acceleration, vertical speed, and ground speed. c. track, present position, and wind data. d. All of the answers are correct.

A fast realignment should be complete in:

30 seconds

When does an IRS enter the NAV mode?

The mode selector is in NAV, present position entered, and the alignment cycle is complete.

Which of the following is not a major component of the inertial system?

Instrument Display Unit (IDU) transfer switch

If the FAULT light on the IRS Mode Selector Unit illuminates, it indicates:

a system fault affecting the related IRS ATT and/or NAV mode has been detected.

Flashing ALIGN lights on the IRS MSU indicate:

alignment cannot be complete until the present position is entered.

On which CDU page is the FMC and IRS ground speed displayed?

POS REF page 2/3.

An entry of 0.720 for descent into the TGT SPD line on the ACT ECON SPD DES page will:

change the page title to display ACT M 0.720 SPD DES.

Valid entries in the Via column on the RTE page include:

DIRECT

When the FMC is not receiving the required fuel data from the fuel quantity indication system dashes are displayed and a manual entry is possible.

true

On the RTE page, the origin airport must be entered if the company route is entered

false

Pushing the ACTIVATE key arms the route for execution as the active route.

true

Selection of an approach or runway from an ARRIVALS page will automatically delete a previously selected approach or runway.

true

Arrivals can be selected on the FMC for either the origin or destination airport

true

On the FIX INFO page, RADI DIS FR, displays the radial and distance from the fix to the airplane. This information is continually updated as the airplane position changes.

true

The RTE LEGS page is used to monitor route progress and modify the route.

true

During a VNAV path descent, the FMC uses idle thrust and pitch to fly a vertical path, which complies with altitude and speed restrictions in the flight path.

true

If the FMC receives invalid fuel data:

the scratchpad message “VERIFY GW AND FUEL” may be displayed and periodic entry of fuel weight is required in order to keep gross weight value current.

The FMC Advisory Message DRAG REQUIRED indicates:

the airplane is 10 knots or more above the FMC target speed or within 5 knots of Vmo/ Mmo.

The centre of the CDU screen is called:

The data block area.

Parallel offsets can be used up to ___ miles left or right of course.

99.9nm

Conditional waypoints are identified by:

parenthesis on the CDU.

If the aircraft is more than 3nm from the active route when LNAV is selected, LNAV will not engage until:

The aircraft heading is within 90 degrees of the active course AND the aircraft will intercept the waypoint prior to the active waypoint.

If an AP is engaged in CMD when LNAV disengages:

The AP roll mode will change to CWS R.

In order for VNAV to be engaged:

One FD or one AP must be in CMD

VNAV will not fly through:

The MCP altitude or the altitude of an active waypoint.

Constraints can either be deleted:

On the legs page of the appropriate phase of flight page.

VNAV disengages when:

1. airspeed exceeds FMC speed restriction of more than 15kts 2. GS capture 3. Cross track greater than 2x the RNP while the active leg has a vertical angle 4. Limit speed exceedance 5. TO/GA is pressed during a VNAV approach or when the MaP point is crossed 6. Electrical power to the FMC is interrupted or lost 7. Another pitch mode is selected 8. A new MCP altitude is selected with ALT HOLD engaged. 6.

If both GPS receivers fail:

the GPS light and MASTER CAUTION lights will illuminate.

If one GPS receiver fails:

The GPS light illuminates upon recall only

The FMC position =

The sum of all position inputs

The GPS light is located:

On the IRS panel

All four IRS lights except the ____ light will cause:

ALIGN, illumination of the IRS system annunciator light and the MASTER CAUTION lights.

The ON DC light indicates that the IRU is:

The DC FAIL light indicates that:

the back up power source to the IRS is not available.

The left IRU is powered by ___ and the right IRU is powered by the \_\_\_.

the AC Standby Bus, #2 Transfer Bus

The right IRU will only operate from the ____ for a period of \_\_\_\_.

Switched hot battery bus, 5 minutes

Each IRU feeds the respective FCC ___ and the ____ FCC \_\_\_.

pitch, opposite, roll

The difference between the L and R IRS on backup power is:

The left will continue to operate until the battery is drained, whereas the right will operate for 5 minutes only.

The only way to restore both IRS's after both turned to ATT is:

A full realignment

Turbulence detection occurs when:

the horizontal flow of precipitation moves away from the radar antenna at a rate of more than 5m/s

Which weather radar mode can be used to pick up ground returns?

MAP