Navigation Flashcards
(32 cards)
The IRS display unit is located on the ____.
a. Center Instrument Panel
b. Aft Electronics Panel
c. Captain`s Side Panel
d. Aft Overhead Panel
d. Aft Overhead Panel
How long does a full IRS alignment take?
a. Approximately 5 minutes
b. Approximately 10 minutes
c. Approximately 15 minutes
d. From 5-17 minutes depending on latitude
d. From 5-17 minutes depending on latitude.
A steady white ALIGN light on the IRS Display Unit means ____.
a. an alignment fault is detected
b. the present position is inaccurate
c. alignment is progressing normally
d. the system is fully aligned
c. alignment is progressing normally
A flashing white ALIGN light means ____.
a. no present position entered
b. unreasonable present position entry
c. both A and B are correct
d. alignment complete, ready for NAV
c. both A and B are correct
How long can the Right IRS operate without AC electrical power?
a. 5 minutes
b. 30 seconds
c. 5 seconds
d. 30 minutes
a. 5 minutes
If the amber FAULT light illuminates on the IRS Display Unit, it indicates the ____.
a. IRS has switched to ATTITUDE automatically
b. present position is inaccurate
c. ADIRU is in a self-test mode
d. related IRS system has detected a fault
d. related IRS system has detected a fault
In flight, attitude information may be restored following a fault by selecting ____.
a. ATT
b. ALIGN
c. NAV
d. OFF
a. ATT
The VOR course is set on the ____.
a. Mode Control Panel
b. EFIS Control Panel
c. Aft Electronics Panel
d. FWD Overhead Panel
a. Mode Control Panel
The VOR identification is displayed on the ____.
a. VHF Navigation Control Panel
b. PFD
c. on-side FMC
d. Navigation Display
d. Navigation Display
The right VOR information can be displayed and flown on the left ND by changing the ____.
a. VOR Standby Switch on the Aft Electronics Panel
b. IRS Switch on the FWD Overhead Panel
c. VHF NAV Transfer Switch on the FWD Overhead Panel
d. AUX NAV Switch on the Aft Overhead Panel
c. VHF NAV Transfer Switch on the FWD Overhead Panel
DME frequencies are normally _____ tuned by the _____ as necessary for aircraft position updating.
a. manually/VOR
b. manually/pilot
c. automatically/GPS
d. automatically/FMC
d. automatically/FMC
____ ILS receiver(s) is/are installed on the B737.
a. 1
b. 2
c. 3
d. 4
b. 2
ILS course and glidepath are displayed on the pilots PFDs and ____.
a. Nav Display in MAP mode
b. Upper Multi-Function Display
c. Standby Attitude Indicator
d. Lower Multi-Function Display
c. Standby Attitude Indicator
Marker beacon information is displayed on ____.
a. the PFD or ND
b. the PFD only
c. both the PFD and ND
d. the ND only
b. the PFD only
____ GPS receivers are installed in the B737.
a. 1
b. 2
c. 3
d. 4
b. 2
GPS provides position updates to the ____ and other aircraft systems.
a. FMC
b. IRS
c. ILS
d. VOR
a. FMC
The white ALIGN light will flash to indicate ____.
a. an error in initial position information
b. the IRS Mode Selector has been moved to OFF
c. normal alignment
d. alignment complete, ready for NAV
a. an error in initial position information
The right (IRS #2) ON DC light has illuminated. What is/are the possible causes?
a. All choices are correct
b. AC Main Bus 1 has failed.
c. The left IRS is being powered by the DC Standby Bus.
d. The airplane is on standby power
d. The airplane is on standby power
This indication occurs at the gate because external power dropped off line and the aircraft is now on standby power. SELECT ALL of the indications (below) that would also be applicable.
a. The Master Caution and IRS annunciator lights illuminate
b. The ground call horn in the nose wheel well sounds.
c. The BAT DISCHARGE light illuminates
d. TRANSFER BUS OFF and SOURCE OFF lights illuminate
All 4 are correct
In this situation, the indication occurs in flight. Assuming no corrective action is available, which statement about the operation of each IRS is correct?
a. The left IRS is inoperative. The right IRS is operating on battery power.
b. The left IRS will operate on battery power once the right IRS shuts down after 5 minutes.
c. The left IRS is operating normally. The right IRS will shut down in 5 minutes.
d. The right IRS will operate for 30 minutes and the left IRS will shut down in 5 minutes.
c. The left IRS is operating normally. The right IRS will shut down in 5 minutes.
In flight, the Master Caution Lights and the IRS Annunciation light illuminate. These indications also occur (on the left IRS annunciations) which means that the _____.
a. Left IRS has failed and the unit is inoperative.
b. Battery Bus has failed since it is the DC power source for the left IRS
c. DC power source for the left IRS is not normal but the left IRS is still powered by the AC Standby
d. left IRS should continue to operate for 5 minutes and then fail
c. DC power source for the left IRS is not normal but the left IRS is still powered by the AC Standby
Assuming no other IRS lights are illuminated, normal IRS operation can be restored by ____.
a. moving the left IRS Mode Selector to ALIGN and then back to NAV after 30 seconds
b. No action is possible. The left IRS will fail after 5 minutes
c. moving the left IRS Mode Selector to ATT and update the aircraft heading in line 5R in POS INIT Page 1/3 of the CDU
d. No action is required. The IRS is operating normally
d. No action is required. The IRS is operating normally
What is the back-up DC power source for the Left IRS?
a. The Switched Hot Battery Bus
b. The Hot Battery Bus
c. The DC Standby Bus
d. A 24-volt DC battery separate of the aircraft battery that has a 30-minute life span
a. The Switched Hot Battery Bus
The aircraft is in level flight at FL 350 when this indication is observed. The left IRS Transfer Switch is in the NORMAL position. In this situation, the Left IRS is not providing accurate _____.
a. information to the Captain’s instruments and the left IRS must be turned OFF
b. Attitude and heading information to the Captain’s instruments. To restore attitude information, select ATT on the #1 IRS Mode Selector and maintain wings level and constant airspeed tor 30 seconds
c. Information to the Captain’s instruments. To restore the system, select ALIGN on the #1 IRS Mode Selector, then select NAV after the ALIGN Light extinguishes (approximately 30 seconds)
d. Heading and attitude information to both the Captain’s and First Officer’s instruments. Move the IRS Transfer Switch to BOTH ON R to restore the FO’s information
b. Attitude and heading information to the Captain’s instruments. To restore attitude information, select ATT on the #1 IRS Mode Selector and maintain
wings level and constant airspeed tor 30 seconds