Study Guide: Flight Management & Navigation Flashcards
757/763: The FMC light illuminates when:
a) There is a FMC alerting message
b) The FMC’s are resetting
c) There is single FMC operation only
d) Both FMC’s have failed
There is a FMC alerting message
757/767: One of the IRS mode selector is positioned to ATT. This mode provides:
a) Only attitude and heading information
b) A quick alignment of the IRU when airborne
c) A quick alignment of the IRU when on the ground
d) Attitude and position data only
Only attitude and heading information
757/767: The DC FAIL light is illuminated on the IRS mode selector panel for the left IRU. This indicates that:
a) The left IRU’s input is not reliable for navigation
b) The left main DC bus is not powered
c) DC backup power for the related IRU has failed
d) The left IRU has lost AC power
DC backup power for the related IRU has failed
757/767: The ON DC light is illuminated on the IRS mode selector panel for the right IRU. This indicates that:
a) Normal AC power for the left IRS has failed and the IRS is operating on DC backup power from the hot battery bus
b) Normal DC power for the right IRS has failed and the IRS is operating on DC backup power from the hot battery bus
c) DC backup power for the right IRS has failed
d) Normal AC power for the right IRS has failed and the IRS is operating on DC backup power from the hot battery bus
Normal AC power for the right IRS has failed and the IRS is operating on DC backup power from the hot battery bus
757/767: The FAULT light is illuminated on the IRS mode selector panel for the center IRU. This indicates that:
a) No airplane position has been entered after 10 minutes
b) All AC power has been lost
c) DC backup power has been lost
d) A system fault affecting the center IRS ATT and/or NAV modes has been detected
A system fault affecting the center IRS ATT and/or NAV modes has been detected
757/763: Three ILS receivers, tuned from a single control panel, are installed. The panel tunes all three ILS receivers simultaneously. The center ILS receiver provides input to:
a) Both the Captain’s and First Officer’s ADI/HSI as a backup
b) The First Officer’s ADI/HSI
c) The Captain’s ADI/HSI
d) The standby attitude indicator (SAI)
The standby attitude indicator (SAI)
753/764: Which IRU(s) remain powered during standby power operations?
a) The left and center IRU
b) The right IRU
c) The left and right IRU
d) All three IRUs remain powered
All three IRUs remain powered
757/767: The ALIGN light is flashing on the IRS mode selector panel for the left IRU. This indicates that:
a) Alignment cannot be completed due to significant difference between previous and entered positions, an unreasonable present position entry, no present position entry
b) The related IRS is operating in the ALIGN mode, the initial ATT mode, or the shutdown cycle
c) With mode selector in NAV, alignment is complete, and all IRS information is available
d) With mode selector in ATT, attitude information is available
Alignment cannot be completed due to significant difference between previous and entered positions, an unreasonable present position entry, no present position entry
757/767: If the IRS reverts to DC power on the ground, the ____ to alert personnel of the high battery drain.
a) DC FAIL lights will illuminate on the IRS mode selector panel
b) FAULT lights will illuminate on the IRS mode selector panel
c) ALIGN lights will illuminate on the IRS mode selector panel
d) Ground crew call horn in the nose wheel well sounds continuously
Ground crew call horn in the nose wheel well sounds continuously
757/767: When first turned on, the IRU must go through a full alignment. Alignment requires about ____ while the system determines level attitude and true heading.
a) 10 minutes
b) 8 minutes
c) 5 minutes
d) The alignment is immediate
10 minutes
