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CPL Test Series
Question Bank
Questions for RNAV
Answer the following questions
Test Mode
Training Mode
1. An aircraft using a basic 2D RNAV system is on a section between WP1 and WP2, a distance of 45 nm. The aircraft is 20nm from the phantom station, which is 270°/30 nm from the VOR/DME. The aircraft is 15nm from the VOR/DME. The range readout will show
30 nm
15 nm
25 nm
20 nm
2. The IRS position can be updated
on the ground only
on the ground and overhead VOR/DME
at designated positions en-route and on the ground
at selected waypoints and on the ground
3. Concerning FMC operation, which of the following is true
the FMC combines the short term accuracy of the IRS with the short term accuracy of the external reference
the FMC combines the long term accuracy of the IRS with the short term accuracy of the external reference
the FMC combines the long term accuracy of the IRS with the long term accuracy of the external reference
the FMC combines the short term accuracy of the IRS with the long term accuracy of the external reference
4. The sequence of displays accessed on initialisation is
POS INIT, IDENT, RTE
POS INIT, RTE, IDENT
IDENT, POS INIT, RTE
IDENT, RTE, POS INIT
5. Above latitudes of 84° a twin FMS/triple IRS system will go to de-coupled operations. The reason for this is
to prevent error messages as the IRS longitudes show large differences
to ease the pilot's workload
to improve the system accuracy
because the magnetic variation changes rapidly in high latitudes
6.
Refer to Appendix A. What are the correct selections to insert the most accurate position into the IRS?
3R then 4R
4R then 3R
3L then 4R
2R then 4R
7. The accuracy required of a precision area navigation system is
0.5 nm
2 nm
0.25 nm
1 nm
8. The period of validity of the navigational database is
1 month
91 days
determined by the national authority and may be from 28 days to 91 days
28 days
9. The position used by the FMC in the B737-400 is
an average of the two IRS positions, smoothed by the Kalman filtering process.
generated from the external reference and updated by the IRS as part of the Kalman filtering process.
taken from the selected IRS, smoothed by Kalman filtering and updated to the external reference
an average of the two IRS positions
10. The correct format for the input of position 50N 00527E to the CDU is
N50E00527
5000.0N00527.0E
N5000.0E00527.0
N5000E00527
11. The FMC position will be at its most inaccurate
at TOD
at TOD
on take-off
at TOC
12. A basic 2D RNAV system will determine tracking information from
Any of the above
Twin VOR
VOR/DME
twin DME
13. The maximum range at which VOR bearing information will be used by the B737-400 FMC for fixing is
10 nm
50 nm
60 nm
25 nm
14. Which positions can be input to the FMC using a maximum of 5 alpha-numerics?
Latitude and longitude, reporting points and airways designators
SIDS & STARS and latitude and longitude
SIDS & STARS, reporting points and airways designators
Navigation facilities, reporting points and airways designators
15. The FMC navigational database can be accessed by the pilots
to change information between the 28 day updates
to change the information to meet the sector requirements
to read information only
to update the database
Submit
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