2A553A Volumes 1-6

1. What schedules task execution that selects the inertial navigation unit's mode, performs mode initialization, provides geographic-oriented system outputs (including data representing Earth radii and gravity vectors), monitors the INU's performance, and reports system failures?

Avionics operational flight program

Built-in test function

Preprocessor formatting software

Operational flight program

2. What is the purpose of the KY-100 secure voice system main terminal unit?

Controls plain text, cipher, and guard transmission levels

Encodes and decodes transmitted and received audio signals

Converts digital voice text into analog cipher text for radio-frequency transmission

Established operating mode selection and code zeroing

3. What is the structure of a Military Standard 1553B data word?

32 bits long consisting of 3 sync, 28 data/command/status, and 1 parity bit

20 bits long consisting of 3 sync, 16 data/command/status, and 1 parity bit

32 bits long consisting of 1 sync, 28 data/command/status, and 3 parity bits

20 bits long consisting of 1 sync, 16 data/command/status, and 3 parity bits

4. In the tactical air navigation mode, each dot on the HSI represents an error from the selected course of

10.0 degrees

1.25 degrees

2.50 degrees

5.0 degrees

5. The maximum number of IFF reply codes that can be selected in mode 1 is

1064

73

77

32

6. Which is not a type of solderless connector?

Connector plug pins

Terminal lug

Splice

Connector splice

7. In a single-sideband transmitter, the balance modulator's output consists of the

Lower sideband only

Upper sideband only

Carrier and upper and lower sidebands

Upper and lower sidebands

8. In VOR mode, what information is sent to the HSI by the ARN-147 VOR/localizer receiver?

TO/FROM, heading, and relative bearing

Left/right deviation, flag alarm, and TO/FROM

Relative bearing, flag alarm, and heading

Flag alarm, distance, and left/right deviation

9. The IFF information pulses used for mode 1 replies are

A1, A22, A4, B1, and B2

A1, A2, A3, B1, and B4

A1, B1, B2, B4, and C1

A1, A4, B1, B4, and C1

10. What is the electrical difference between the record and playback processes in video tape recorders?

The playback signal is positively biased; the record signal is negatively biased

Playback is a current function; record is a voltage function

The playback signal is negatively biased; the record signal is positively biased

Playback is a voltage function; record is a current function

11. With the IFF antenna switch in the BOTH position, each IFF antenna is alternately selected

45 times per second

25 times per second

33 times per second

38 times per second

12. In an amplitude-modulated receiver, the detector circuit responds only to the

Frequency variations of the intermediate-frequency signal

Pulse width of the intermediate-frequency signal

Rate of frequency deviation of the intermediate-frequency signal

Amplitude variations of the intermediate-frequency signal

13. The frequency response of a video tape recorder is determined by the

Head gap width and tape width

Slant angle of the tape and tape width

Head gap width and tape speed

Slant angle of the tape and tape speed

14. On which frequencies can the ARC-186 VHF radio not transmit in the AM mode?

38 to 87.975 MHz

108 to 151.975 MHz

116 to 151.975 MHz

30 to 87.975 MHz

15. Which VHF radio system has the best chance of receiving a signal from a station located beyond the horizon?

Super-high frequency

Very-high frequency frequency modulation

Very-high frequency amplitude modulation

Ultra-high frequency

16. The AN/ARC-210 receiver/transmitter does not provide

Half-duplex, two-way communications of normal and secure voice frequency-modulated signals

Transmit-only mode of operation of normal and secure voice from 108.000 to 117.9975 MHz AM

Receive-only mode of operation of normal and secure voice from 108.000 to 117.9975 MHz AM

Half-duplex, two-way communications of normal and secure voice AM signals

17. The REMIS is designed to provide information to support AF

Data for the DDN

Data for the IMDS

Document production data for the MDC system

Equipment maintenance program

18. In a signal-sideband system, which mode of operation transmits both sidebands and deletes the carrier?

Independent sideband

Amplitude-modulate equivalent

Single-sideband suppressed carrier

Single-sideband transmission

19. What publication contains broad, enduring guidance for preparing and employing AF resources?

AF manuals

AF policy directives

AF doctrine documents

Mission directives

20. The low-pass filter in the automatic frequency control circuitry of a frequency-modulated transmitter is designed to prevent

The lower sideband from being transmitted

The audio signal from the audio amplifier from tuning the

Correction voltage changes caused by the modulating signals

Carrier frequency feedback from tuning the reactance modulator

21. How many complete reply trains for identification of position (I/P) operation are generated by the coding circuits when the IFF system's I/P control circuits are enabled?

Three

Two

Four

One

22. Which inspection is more extensive that the hourly postflight or basic postflight inspections, and covers certain parts, areas, and systems of the aircraft that require less frequent inspection?

Minor

Periodic

Phase

Major

23. When the IDENT switch is activated, the IFF transponder automatically transmits an identification of position reply for

10 seconds

30 seconds

20 seconds

25 seconds

24. Which is not a purpose of flag notes (numbered flags) on a schematic diagram?

Refer to information too lengthy to fit on the face of the diagram

Denote that information can be found on different pages

Refer to information too lengthy to fit in the margin of the diagram

Refer to frequently repeated information

25. The TO that list all Air Force MPTO is TO

0-1-1

00-1-02

00-1-20

0-1-02

26. If the HSI indicator displays a magnetic heading of 45 degrees and magnetic bearing of 5 degrees to the tactical air navigation station, the the relative bearing is

45 degrees

225 degrees

320 degrees

40 degrees

27. In the airborne video tape recorder unit, the event mark signal is recorded on

The same track as the audio signal

One of the audio channels

The same track as the servo control signal

Both audio channels

28. You do not use the UPM-145 radar test set to test receiver-transmitter

Transmitter bandwidth

Frequency

Receiver bandwidth

Power

29. The Air Force TO that gives detailed instructions for preparing and submitting an AFTO Form 22 is

00-5-2

00-20 series

00-5-1

00-5-15

30. What ASC-19(V)3 SATCOM system LRU contains all controls for UHF LOS operation and for switching system control for satellite operation?

C-10091/A control power supply

MD-1035/A telegraph modem

C-10357 SATCOM control panel

C-9665(V)1/A radio set control

31. What ASC-19(V)3 SATCOM system component controls the TT-712/A printer operation?

C-10091/A control power supply

MD-1035/A telegraph modem

C-10090/A keyboard

C-10357 SATCOM control panel

32. The electronics that provide control of the FLIR set's cryocooler compressor are contained in the

Cryocooler

Signal data converter

Video post processor

Sensor unit

33. Which control is used by the offensive system operator to enable the electronic counter-countermeasures radar mode of operation?

Navigation/auxiliary

Radar set

Central integrated test system control and display

Bomb/navigation

34. In a video tape recorder, what is the frequency of the pulse generator sampling signals used in the servo control circuits when the drum speed is 1,800 revolutions per minute?

60 Hz

30 Hz

120 Hz

90 Hz

35. Which entry is not provided by the UPN-145 radar test set keyboard?

Range rate

Pulse width

Pulse timing

Range

36. Which FLIR set sensor component receives the video output from the sensor unit?

Signal data converter

Video post processor

Focal plan array

Gimbal assembly

37. The controls and displays display electronics unit transfers data to avionics multiplex data bus

D

B

C

A

38. The Traffic Alert and Collision Avoidance System surveys valid transponder traffic that is approximately

10-20 NMs fwd, 5-15 NMs, aft, and 10-40 NMs on both sides of an aircraft

10-40 NMs fwd, 5-15 NMs, aft, and 10-20 NMs on both sides of an aircraft

15-40 NMs fwd, 10-20 NMs, aft, and 5-15 NMs on both sides of an aircraft

15-40 NMs fwd, 5-15 NMs, aft, and 10-20 NMs on both sides of an aircraft

39. The STEER FLY TO switchlight on the bomb/navigation control is used to manually select

Another sequence point for navigation update

Another sequence as the next destination

The current crosshair position as the next destination

The next offset aim point

40. In a frequency-modulated signal, the amount of separation between the sideband frequencies is equal to the

Rate of carrier swing

Carrier frequency

Amplitude of the modulating signal

Modulating frequency

41. The NAV UPDATE ACPT switchlight on the bomb/navigation control commands the navigation system to accept

Certain types of computed data that must first be manually evaluated

The inputs from the radar, altimeter, and Doppler velocity sensor systems

Emergency override data information which the offensive systems operator manually enters

The information inputs which the offensive systems operator manually enters

42. What is the purpose of the Multifunctional Information Distribution System data terminal?

Transmit secure data messages across the demand assigned multiple access satellite network

Extend networks beyond the local area

Provide line of sight connectivity to a local area network

Provide accurate positional data for the data link terminal

43. The data presented on the multifunction displays is controlled by the

Navigation/auxiliary control

Radar set control

Integrated keyboard

Bomb/navigation

44. What LRU controls the overall reading/writing of information on the data transfer set data cartridges?

Transmitter control

Radar data terminal

Electrical equipment mounting base

Mass storage device

2a553a Volumes 1-6