Communications and Avionics 1-77 Flashcards
The Avionics Master Switch “powers” all avionics and radio systems in both cockpits except?
except for the back-up UHF control unit and UHF transceiver
The avionics master switch provides logic to apply power to the blowers even with the blower control switches in the OFF position.
True
How many antennas on the T-6?
10
Selecting alternate (ALTN) bypasses the amplifier and provides what type of audio?
raw audio (no volume control)
Each audio control panel also includes a toggle switch, placarded V, R, and BOTH. What does the letters represent?
voice only (V),
recognition or morse code only (R)
both voice and recognition (BOTH)
Which audio panel features the HOT/COLD function?
The rear cockpit audio panel
When the interphone control switch is set to HOT, both microphone circuits are activated. Depressing the ICS KEY/MUTE switch on either PCL does what?
mutes all external incoming audio.
To monitor the VHF emergency (guard) frequency, the VHF system must be tuned to _____ MHz.
121.50
UHF and VHF GUARD frequency?
243.00/121.50
The transponder provides what three modes of operation?
standby, on, and altitude reporting.
With the transponder in standby what information is provided to ATC?
the transponder code may be selected, but the transponder will not respond to ground or airborne interrogations
With the transponder in ON what information is provided to ATC?
the transponder code may be selected and the transponder will transmit the selected code when interrogated, but will not provide altitude reporting information.
With the transponder in ALT what information is provided to ATC?
the transponder code may be selected and will respond to interrogations with the selected code and altitude information received from the air data computer.
The transponder system provides modes ______ for operation in the air traffic control radar beacon system
A, C, and S
How is the RADIO MANAGEMENT UNIT (RMU) displays organized?
UHF field VHF field Transponder field Blank VHF nav field
On the RMU, what are the name of the switched to the left and right respectively?
Field select keys (left)
Transfer/Mode select switches (right)
If all systems pass the preflight test, the RMU automatically cycles to the normal operating page.
true
If any system does not pass the RMU preflight test, what happens?
the display remains on the preflight test page.
If any system does not pass the RMU preflight test the RMU will not be usable, and the flight must be aborted.
False. Pressing the key adjacent to ACCEPT, which accepts the failure and then proceeds to the normal operating page
The VHF communications memory pages will store how many frequencies?
20
The UHF communications memory pages will store 15 frequencies.
False. It will store 20
The NAV memory page will store 15 frequencies.
False. It will only store 10
If the backup UHF control head is set to both GUARD and MAIN (GD and MN), the radio will transmit on what?
GUARD if the pilot keys the
transmitter while a GUARD transmission is being received.
The electronic flight instrument system (EFIS) includes what?
a control panel and two 5-inch displays in each cockpit
The horizontal situation indicator (HSI) button is used to select one of two possible 360-degree EHSI display formats - which two?
● Basic navigation data page
● Directional gyro page
The arc button (ARC) is used to select one of two ____-degree arc display formats for the EHSI
85
EHSI display range scale selections are?
2.5, 5, 10, 20, 40, 80, 120, 160, and 500 NM
If the pitch angle exceeds ______, or if the roll angle exceeds _____, only the attitude presentation remains on the EADI, and all other information is decluttered.
+30° or -20°; 65°
________ on the EADI indicate the best unusual attitude recovery direction.
Red chevrons
The chevrons will appear in the black ground raster between ____________, and in the blue sky raster between
________.
40° and 90°; 40° and 90°
Whenever the aircraft has returned to a pitch orientation of less than __________ down, and the bank angle is less than , the normal EADI presentation will reappear.
25° up or 15°; 60°
CDI dot deflections:
What is 1 dot and 2 dots for the CDI for VOR?
5° / 10°
CDI dot deflections:
What is 1 dot and 2 dots for the CDI for LOC?
0.25 ° x width of
localizer; 0.5 ° x width of localizer
CDI dot deflections:
What is 1 dot and 2 dots for the CDI for GLIDESLOPE?
0.25 ° x width of
glideslope; 0.5 ° x height of
glideslope
CDI dot deflections:
What is 1 dot and 2 dots for the CDI in EN ROUTE MODE?
2.5 NM; 5.0 NM
CDI dot deflections:
What is 1 dot and 2 dots for the CDI in APR ARM?
0.5 NM; 1.0 NM
CDI dot deflections:
What is 1 dot and 2 dots for the CDI ?
0.15 NM; 0.3 NM
The ILS equipment includes reverse sensing capability
False. When executing a published localizer back course approach procedure,
the pilot must set the localizer front course in the EHSI to obtain normal (fly-to) CDI displacement
To correct EADI attitude errors caused by maneuvering do what?
maintain straight and level, unaccelerated flight until the apparent errors are corrected. Depending upon the severity of the error, resolution typically takes less than 1 minute, but may require more than 2 minutes in extreme cases.
To provide the pilot with usable heading information in the case of local magnetic disturbances, the AHRS
should be placed in the ____ mode.
DG (free)
With a failure of the flux valve (AHRS), heading information is provided in the same way as if the AHRS controller is being manually switched into DG mode, except what?
The difference is an annunciaton of the heading warn flag (red HDG in red box to the right and slightly above the Heading Lubber Mark) on the EHSI.
When the AHRS self-test mode is initiated, how long after the switch is released, will the display return to normal if all systems tested are functional.
1 second
Where is the magnetic sensor unit located?
The magnetic sensor unit is located in the right wing.
How can you tell the TAS is disabled/enabled?
The system is disabled if OFF is illuminated in blue on the switch, and enabled if aircraft
is powered and the switch is blank.
When normal mode (TAS) is selected, traffic between __________ to __________ the aircraft will be displayed.
2700 feet above; 2700 feet below
When above mode (TAS) is selected, traffic between __________ to __________ the aircraft will be displayed.
8700 feet above; 2700 feet below
When below mode (TAS) is selected, traffic between __________ to __________ the aircraft will be displayed.
2700 feet above; 8700 feet below
the TAS processor is always processing traffic _______ above and below the aircraft.
10,000 feet
TAS tracks range, altitude, and relative bearing of aircraft within a ____ nautical mile (NM) radius
40
TAS range selections are
3, 5, 10, 20, and 40 NM.
TAS sensitivity levels?
Sensitivity level A. TAS is in sensitivity level A when the landing gear is extended
Sensitivity level B. TAS is in sensitivity level B when the landing gear is retracted
If the TAS is in mode B, closing rate is maintained, a vertical separation of less than ____ feet will occur in ____ seconds.
600; 20
If the TAS is in mode A, closing rate is maintained, a vertical separation of less than ____ feet will occur in ____ seconds.
800; 30
What TAS mode?
Vertical separation from intruder is less than 600 feet and horizontal separation is less than 0.2 NM.
A
What TAS mode?
Vertical separation from intruder is less than 800 feet and horizontal separation is less than 0.55 NM.
B
How is a Non-threat traffic indicated (TAS)?
An open white diamond
Proximity traffic symbol (TAS)?
A filled white diamond
Traffic advisory (TA) symbol (TAS)?
A filled yellow circle
