Mhafb CDC 2a051t Vol.1 Aircraft Systems

65 Questions | Total Attempts: 336

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Aircraft System Quizzes & Trivia

Volume 1 URE Questions for 5 level CDCs


Questions and Answers
  • 1. 
    (001) What is true course (TC) an expression of in aerial navigation?
    • A. 

      Time

    • B. 

      Distance

    • C. 

      Direction

    • D. 

      Distance and time

  • 2. 
    (002) The basic operating principle of the very high frequency omnidirectional range system is the phase comparison between the
    • A. 

      30 Hz reference and 30 Hz variable signals

    • B. 

      30 Hz reference and 9960 Hz FM signals

    • C. 

      30 Hz variable and 9960 Hz FM signals

    • D. 

      90 Hz and 150 Hz modulated signals

  • 3. 
    (002) In instrument landing system operation, a deflection of two dots on the attitude direction indicator glide slope deviation scale indicates the aircraft is
    • A. 

      0.25 degrees off glide path

    • B. 

      2.5 degrees off glide path

    • C. 

      0.6 degrees off glide path

    • D. 

      6.0 degrees off glide path

  • 4. 
    (003) What is used to guide the aircraft during an instrument approach to the active runway?
    • A. 

      Microwave landing system (MLS) back azimuth transmitter

    • B. 

      MLS approach azimuth transmitter

    • C. 

      Glide slope

    • D. 

      Localizer

  • 5. 
    (004) The tactical air navigation (TACAN) bearing, selected course, and range are displayed on the
    • A. 

      Attitude direction indicator

    • B. 

      Digital electronics display

    • C. 

      Horizontal situation indicator

    • D. 

      Standby attitude indicator

  • 6. 
    (004) The typical tactical air navigation (TACAN) system consists of
    • A. 

      Airborne interrogator-receiver and a surface beacon (UHF range)

    • B. 

      Airborne interrogator-receiver and a surface beacon (VHF range)

    • C. 

      Airborne beacon and surface interrogator-receiver (HF range)

    • D. 

      Airborne beacon and surface interrogator-receiver (LF range)

  • 7. 
    (004) The aircrafts compass is designed to align itself with
    • A. 

      The earth's horizontal magnetic field

    • B. 

      The earth's vertical magnetic field

    • C. 

      The north and south poles

    • D. 

      True north

  • 8. 
    (005) What type of error is caused by misalignment of the magnetic azimuth detector during installation?
    • A. 

      Index

    • B. 

      Coriolis

    • C. 

      Hard iron

    • D. 

      Transmission

  • 9. 
    (006) What are the two types of inertial navigation system integrators?
    • A. 

      Analog and digital

    • B. 

      Motion and velocity

    • C. 

      Electrical and mechanical

    • D. 

      Acceleration and directional

  • 10. 
    (006) What component is the heart of the F-16 inertial navigation unit (INU)?
    • A. 

      Computer

    • B. 

      Integrator

    • C. 

      Stabilized platform

    • D. 

      Performance monitor

  • 11. 
    (007) The global positioning system (GPS) data provides all except
    • A. 

      Time of day

    • B. 

      Aircraft identification

    • C. 

      Have-quick synchronization

    • D. 

      Correction for in-flight internal navigation system (INS) alignment

  • 12. 
    (007) in an embedded global positioning system, a Kalman filter is used to model errors in
    • A. 

      Latitude and longitude

    • B. 

      Velocity and postion

    • C. 

      Altitude and attitude

    • D. 

      Pitch and roll

  • 13. 
    (008) The operational range of the combined altitude radar altimeter is
    • A. 

      0-1,000 feet

    • B. 

      0-2,000 feet

    • C. 

      0-5,000 feet

    • D. 

      0-50,000 feet

  • 14. 
    (009) on the combined altitude radar altimeter, an intermediate frequency of 495 kHz can represent
    • A. 

      One altitude

    • B. 

      Two altitudes

    • C. 

      Six altitudes

    • D. 

      Seven altitudes

  • 15. 
    (010) What is the term for random or unintentional electron movement?
    • A. 

      Noise

    • B. 

      Distortion

    • C. 

      Modulation

    • D. 

      Heterodyning

  • 16. 
    (011) What process lowers a frequency while retaining the intelligence carried on that frequency?
    • A. 

      Frequency conversion

    • B. 

      Heterodyning

    • C. 

      Demodulation

    • D. 

      Modulation

  • 17. 
    (011) which component's function is to radiate and collect radio frequency (RF)
    • A. 

      Antenna

    • B. 

      Speaker

    • C. 

      Amplifier

    • D. 

      Microphone

  • 18. 
    (012) What is the frequency range of the ultrahigh frequency (UHF) radio system?
    • A. 

      2.2500 to 3.9997 MHz

    • B. 

      22.500 to 39.997 MHz

    • C. 

      225.000 to 399.975 MHz

    • D. 

      2250.00 to 3999.75 MHz

  • 19. 
    (013) the very high frequency (VHF) communicaton system provides clear-voice, two-way communication with what type of modulation?
    • A. 

      AM only

    • B. 

      AM and FM

    • C. 

      Pulse and AM

    • D. 

      Pulse and FM

  • 20. 
    (012) what frequency is displayed when the radio set control switch is set to GUARD?
    • A. 

      225 MHz

    • B. 

      234 MHz

    • C. 

      243 MHz

    • D. 

      325 MHz

  • 21. 
    (014) the amount of high-frequency wave refaction is directly proportional to the
    • A. 

      Signal frequency and indirectly proportional to the wavelength

    • B. 

      Signal wavelength and indirectly proportional to the frequency

    • C. 

      Transmitter power and indirectly proportional to antenna height

    • D. 

      Antenna height and indirectly proportional to the transmitter power

  • 22. 
    (015) with single-sideband modulation, what signal(s) get s discarded?
    • A. 

      Carrier only

    • B. 

      Upper sideband only

    • C. 

      Lower sideband only

    • D. 

      Carrier and one sideband

  • 23. 
    (015) and antenna coupler is required for high-frequency transmissions to
    • A. 

      Allow the transmission of the center frequency and carrier signal from one antenna

    • B. 

      Match the impedance of the antenna to the selected frequency

    • C. 

      Compensate for the degree of atmospheric ionization

    • D. 

      Allow the use of multiple antennas

  • 24. 
    (016) which is not a major component of the AN/ARC-190 radio system?
    • A. 

      High-frequency receiver

    • B. 

      Receiver-transmitter

    • C. 

      Radio set control

    • D. 

      Antenna coupler

  • 25. 
    (016) how many high-frequency channels can be selected from the AN/ARC-190 radio set control?
    • A. 

      29 (0-29)

    • B. 

      29 (01-29)

    • C. 

      30 (00-29)

    • D. 

      30 (01-30)

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