2A952 Volume 3 UREs (2016)
- 1.
(401) When the bus controller detects a transmission error while communicating with a remote terminal (RT) on the Military Standard 1553B data bus, the bus controller
- A.
Retransmits the command several times, and then tries the backup data bus
- B.
Is disabled and the backup controller resumes transmission
- C.
Attempts to retransmit to the RT until contact is made
- D.
Establishes communications with a different RT
Correct Answer
A. Retransmits the command several times, and then tries the backup data bus -
- 2.
(401) Which element of the Military Standard 1553B data bus is capable of being used as a backup bus controller?
- A.
Remote terminal
- B.
Bus controller
- C.
Stub coupler
- D.
Bus monitor
Correct Answer
A. Remote terminal -
- 3.
(401) Which type of data bus stub is used for stubs less than one foot in length on the Military Standard 1553B data bus?
- A.
Transformer-coupled
- B.
Direct-coupled
- C.
Basic-coupled
- D.
Fiber-optic
Correct Answer
B. Direct-coupled -
- 4.
(401) Each type of word used on the Military Standard 1553B data bus is
- A.
20 bits long with a 3-bit sync character, 16 information bits, and 1 parity bit
- B.
16 bits long with a 3-bit sync character, 12 information bits, and 1 parity bit
- C.
10 bits long with a 2-bit sync character, 16 information bits, and 1 parity bit
- D.
8 bits long with a 2-bit sync character, 12 information bits, and 1 parity bit
Correct Answer
A. 20 bits long with a 3-bit sync character, 16 information bits, and 1 parity bit -
- 5.
(401) In a Military Standard 1553B data bus command word, the field that refers to a function or area within the remote terminal to which the command is being directed is the
- A.
Address field
- B.
Subaddress/mode field
- C.
Transmit/receive bit field
- D.
Word count/mode code field
Correct Answer
B. Subaddress/mode field -
- 6.
(401) Military Standard 1553B status words are only transmitted in response to a command from the
- A.
Remote terminal
- B.
Bus controller
- C.
Bus monitor
- D.
Fiber optic
Correct Answer
A. Remote terminal -
- 7.
(401) What does a fiber optic data bus use as the controlling protocol?
- A.
MIL–STD–3910B
- B.
MIL–STD–1553B
- C.
Optic transceiver
- D.
Star coupler
Correct Answer
B. MIL–STD–1553B -
- 8.
(401) At what megabits per second (Mbps) does the fiber optic data bus operate?
- A.
50
- B.
30
- C.
10
- D.
1
Correct Answer
D. 1 -
- 9.
(402) At what rate does an Ethernet station sends data?
- A.
1 Mbps
- B.
10 Mbps
- C.
15 Mbps
- D.
25 Mbps
Correct Answer
B. 10 Mbps -
- 10.
(402) Data must be sent between two processors in the Ethernet local area network (LAN) must flow through the
- A.
Bus monitor
- B.
Data transfer unit
- C.
Digital switching module
- D.
Integrated processing center
Correct Answer
C. Digital switching module -
- 11.
(403) Which system’s information is not capable of being displayed on the flight display system multifunctional displays (MFD)?
- A.
Weather radar (WXR)
- B.
Auto-detect timing data (ADTD)
- C.
Ground proximity warning system (GPWS)
- D.
Tactical collision avoidance system (TCAS)
Correct Answer
B. Auto-detect timing data (ADTD) -
- 12.
(403) What are the electronic attitude director indicator (EADI) and electronic horizontal situation indicator (EHSI) formats controlled by?
- A.
Multifunctional display control panels
- B.
Heads-up display control panels
- C.
Fuel management systems
- D.
Mission computers
Correct Answer
A. Multifunctional display control panels -
- 13.
(403) The multifunctional displays (MFD) are interconnected to each other through the
- A.
MIL-STD–1553A
- B.
MIL-STD–1553B
- C.
Ethernet local area network (LAN)
- D.
Aeronautical Radio, incorporated (ARINC) 429
Correct Answer
C. Ethernet local area network (LAN) -
- 14.
(403) Which multifunctional display (MFD) overlay uses altitude and direction trend arrows?
- A.
Weather radar (WXR) overlay
- B.
Enhanced traffic alert collision avoidance system (ETCAS) overlay
- C.
MAP arc overlay
- D.
Ground proximity warning system (GPWS) terrain overlay
Correct Answer
B. Enhanced traffic alert collision avoidance system (ETCAS) overlay -
- 15.
(403) What component of the flight display system (FDS) allows you to select the navigation source?
- A.
Multifunctional display (MFD) control panel
- B.
Electronic horizontal situation indicator (EHSI)
- C.
Electronic attitude director indicator (EADI)
- D.
Multifunctional display
Correct Answer
A. Multifunctional display (MFD) control panel -
- 16.
(404) Which is not provided to the heads-up displays (HUD) by the mission computer?
- A.
Radar altitude
- B.
Auto-throttle speed
- C.
Display mode commands
- D.
Flight director commands
Correct Answer
B. Auto-throttle speed -
- 17.
(404) Selected mode and symbology requirements are passed to the heads-up displays (HUD) from the mission computers via the
- A.
1553A data bus
- B.
1553B data bus
- C.
Ethernet local area network (LAN)
- D.
Aeronautical Radio, incorporated (ARINC) 429
Correct Answer
B. 1553B data bus -
- 18.
(404) The optically coated, transparent glass panes of a head-up display (HUD) that allow outside images to pass through are called a
- A.
Monitor
- B.
Combiner
- C.
Controller
- D.
Transmitter
Correct Answer
B. Combiner -
- 19.
(404) Which heads-up display (HUD) control mode has a considerably reduced brightness range?
- A.
OFF
- B.
DAY
- C.
AUTO
- D.
NIGHT
Correct Answer
D. NIGHT -
- 20.
(405) How many mission plans and waypoints is the flight management system (FMS) capable of loading?
- A.
20 mission plans and 500 waypoints
- B.
50 mission plans and 200 waypoints
- C.
200 mission plans and 50 waypoints
- D.
500 mission plans and 20 waypoints
Correct Answer
B. 50 mission plans and 200 waypoints -
- 21.
(405) What provides the processing and interface functions for the flight management system (FMS)?
- A.
Flight display system
- B.
Navigation computer
- C.
Control display unit
- D.
Data transfer unit
Correct Answer
C. Control display unit -
- 22.
(405) What provides the primary means of loading the operational flight program (OFP) software and saving fault history in the flight management system (FMS)?
- A.
Data transfer unit
- B.
Control display unit
- C.
Navigation computer
- D.
Flight display system
Correct Answer
A. Data transfer unit -
- 23.
(406) What do fuel management systems such as the Fuel Savings Advisory System (FSAS) measure and process?
- A.
Ram air pressure
- B.
Tactical air navigation
- C.
Aircraft performance data
- D.
Ethernet local area network (LAN) data
Correct Answer
C. Aircraft performance data -
- 24.
(406) Which is not a functional area of the Fuel Management Advisory Computer (FMAC) software?
- A.
Vertical navigation
- B.
Preflight initialization
- C.
Data bus management
- D.
Aircraft performance data
Correct Answer
C. Data bus management -
- 25.
(406) The fuel savings advisory data is transmitted from the Fuel Management Advisory Computer to the control display unit (CDU) on the
- A.
1553A Fuel Savings Advisory Bus (FSB)
- B.
1553B Fuel Savings Advisory System Bus (FSB)
- C.
1553A Flight Management Bus (FMB)
- D.
1553B Flight Management Bus (FMB)
Correct Answer
B. 1553B Fuel Savings Advisory System Bus (FSB) -
- 26.
(406) The air data computer (ADC) output data is provided to the Fuel Savings Advisory Computer for
- A.
Preflight initialization
- B.
Airspeed calculations
- C.
Total air temperature
- D.
Vertical navigation
Correct Answer
B. Airspeed calculations -
- 27.
(407) The Central Integrated Test System (CITS) illuminate lights on the instrument panel when the fault is
- A.
Transferred to the maintenance management system
- B.
Classified as a caution or warning
- C.
Detected on the ground
- D.
Not recorded
Correct Answer
B. Classified as a caution or warning -
- 28.
(407) What records the Central Integrated Test System (CITS) fault?
- A.
Flight management system control display units
- B.
CITS control and display (CCD) panel
- C.
CITS maintenance recorder (CMR)
- D.
CITS maintenance codes (CMC)
Correct Answer
C. CITS maintenance recorder (CMR) -
- 29.
(407) The Central Integrated Test System (CITS) dedicated processor (CDP) interfaces with the avionics multiplex (AMUX) data bus, allowing the CITS to receive parameter data from what subsystem(s)?
- A.
Navigation subsystem only
- B.
Navigation, flight controls, electronic warfare, and weapons subsystems
- C.
Navigation, electronic warfare, weapons, and avionics subsystems
- D.
Avionics subsystem only
Correct Answer
C. Navigation, electronic warfare, weapons, and avionics subsystems -
- 30.
(408) The standard datum plane is a theoretical plane where the atmospheric pressure is
- A.
29.92″ Hg and the temperature is +15° C
- B.
29.92″ Hg and the temperature is +40° C
- C.
30.92″ Hg and the temperature is +15° C
- D.
30.92″ Hg and the temperature is +40° C
Correct Answer
A. 29.92″ Hg and the temperature is +15° C -
- 31.
(408) The purpose of the static pressure holes on a pitot-static tube is to allow
- A.
Atmospheric pressure to enter the static chamber
- B.
Atmospheric pressure to enter the pitot chamber
- C.
Impact pressure to enter the static chamber
- D.
Impact pressure to enter the pitot chamber
Correct Answer
A. Atmospheric pressure to enter the static chamber -
- 32.
(408) Static pressure is
- A.
Less at low radar altitudes and greater at higher radar altitudes
- B.
Less at low attack angles and greater at higher attack angles
- C.
Greater at low airspeeds and less at higher airspeeds
- D.
Greater at low altitudes and less at higher altitudes
Correct Answer
D. Greater at low altitudes and less at higher altitudes -
- 33.
(409) Which signal is not an input to the air data computer?
- A.
Pitot pressure
- B.
Mach number
- C.
Static pressure
- D.
Total air temperature
Correct Answer
B. Mach number -
- 34.
(409) Manual self-test of the air data computer is inhibited if airspeed is
- A.
Greater than 50 knots
- B.
Greater than 70 knots
- C.
Less than 50 knots
- D.
Less than 70 knots
Correct Answer
B. Greater than 70 knots -
- 35.
(409) When the failure annunciator on the front of the air data computer is reset, it shows
- A.
Solid black
- B.
Solid white
- C.
Three black wedges on a white background
- D.
Three white wedges on a black background
Correct Answer
A. Solid black -
- 36.
(410) The TTU–205 test set is capable of controlling and measuring
- A.
Time and distance
- B.
Power and ground
- C.
Altitude and airspeed
- D.
Commands and displays
Correct Answer
C. Altitude and airspeed -
- 37.
(410) The TTU–205 test set be disconnected from aircraft systems and instruments at
- A.
Ambient pressure
- B.
Impact pressure
- C.
High altitude
- D.
Full pressure
Correct Answer
A. Ambient pressure -
- 38.
(410) What color code does the TTU–205 test set static hose assembly use?
- A.
Red
- B.
Blue
- C.
Green
- D.
White
Correct Answer
A. Red -
- 39.
(410) The TTU–205 test set AUTO EXERCISE must be performed when power has been
- A.
On for more than one hour
- B.
Off for more than one hour
- C.
On for more than a half hour
- D.
Off for more than a half hour
Correct Answer
B. Off for more than one hour -
- 40.
(410) How long must the TTU–205 test set be allowed to warm-up for system stabilization?
- A.
1 hour
- B.
8 hours
- C.
10 minutes
- D.
30 minutes
Correct Answer
C. 10 minutes -
- 41.
(411) What type of measurement is used for the altimeter barometric scale?
- A.
Inches of methyl chloride
- B.
Inches of mercury
- C.
Thousands of feet
- D.
Hundreds of feet
Correct Answer
B. Inches of mercury -
- 42.
(411) When the aircraft levels off, the pressures in the vertical velocity indicator equalize, and the pointer returns to
- A.
Six
- B.
Three
- C.
One
- D.
Zero
Correct Answer
D. Zero -
- 43.
(412) The ratio of the speed of the aircraft to the speed of sound is known as
- A.
True airspeed
- B.
Mach number
- C.
Indicated airspeed
- D.
Maximum safe Mach number
Correct Answer
B. Mach number -
- 44.
(412) What type of pressure enters the airspeed indicator diaphragm?
- A.
Pitot
- B.
Static
- C.
Barometric
- D.
Atmospheric
Correct Answer
A. Pitot -
- 45.
(412) The altitude aneroid ensures accurate airspeed indicator operation regardless of
- A.
Mach
- B.
Temperature
- C.
Density error
- D.
True airspeed
Correct Answer
A. Mach -
- 46.
(412) The primary difference between indicated airspeed and true airspeed is the
- A.
Density error
- B.
Instrument error
- C.
Installation error
- D.
Differential error
Correct Answer
A. Density error -
- 47.
(413) Which errors must be corrected for an airspeed indicator to display true airspeed?
- A.
Altitude and instrument
- B.
Altitude and installation
- C.
Temperature and altitude
- D.
Temperature and installation
Correct Answer
C. Temperature and altitude -
- 48.
(413) The sensing elements in the true airspeed indicator are surrounded by
- A.
Pitot pressure
- B.
Static pressure
- C.
Impact pressure
- D.
Methyl chloride gas
Correct Answer
B. Static pressure -
- 49.
(413) What condition causes an uncorrected airspeed indicator to read higher than it should?
- A.
Decreased temperature
- B.
Increased temperature
- C.
Decreased friction
- D.
Increased friction
Correct Answer
A. Decreased temperature -
- 50.
(413) The total air temperature is calibrated in
- A.
One-degree increments from –70° C to +80° C
- B.
One-degree increments from –50° C to +60° C
- C.
Two-degree increments from –70° C to +80° C
- D.
Two-degree increments from –50° C to +60° C
Correct Answer
C. Two-degree increments from –70° C to +80° C -
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