4b051 Bioenvironmental Engineering Journeyman CDC Ure Questions Vol. 4

88 Questions | Total Attempts: 686

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CDC Quizzes & Trivia

Questions and Answers
  • 1. 
    Which of the following provides regulatory oversight for the use of radioactive materials by Air Force organizations?
    • A. 

      AF RIC.

    • B. 

      RSC.

    • C. 

      USAF/SG.

    • D. 

      EPA.

  • 2. 
    Who is the unit commander’s point of contact for radiation protection matters?
    • A. 

      Unit radiation safety officer

    • B. 

      Command radiation safety officer.

    • C. 

      Installation radiation safety officer.

    • D. 

      Unit radiation safety committee officer.

  • 3. 
    The more kinetic energy the electrons have, the
    • A. 

      Closer they are to each other.

    • B. 

      Closer they are to the nucleus.

    • C. 

      Farther they are from each other.

    • D. 

      Farther they are from the nucleus.

  • 4. 
    What form of energy does a rock rolling down a hill contain?
    • A. 

      Kinetic.

    • B. 

      Velocity.

    • C. 

      Potential.

    • D. 

      Centrifugal.

  • 5. 
    The magnetic field is also known as the
    • A. 

      E field.

    • B. 

      H field.

    • C. 

      K field.

    • D. 

      M field.

  • 6. 
     The number of electromagnetic waves passing a certain point in one second is known as
    • A. 

      Energy.

    • B. 

      Intensity.

    • C. 

      Frequency.

    • D. 

      Wavelength.

  • 7. 
    As the frequency becomes higher, wavelength becomes
    • A. 

      Slower.

    • B. 

      Longer.

    • C. 

      Faster.

    • D. 

      Shorter.

  • 8. 
    The amount of energy flowing through a given area in a certain amount of time refers to what measure of electromagnetic radiation?
    • A. 

      Activity.

    • B. 

      Frequency.

    • C. 

      Intensity.

    • D. 

      Wavelength.

  • 9. 
    A tanning booth is a good example of which type of radiation?
    • A. 

      Gamma.

    • B. 

      Visible.

    • C. 

      Infrared.

    • D. 

      Ultraviolet.

  • 10. 
    This type of radiation is commonly emitted by furnaces and molten metals.
    • A. 

      Gamma.

    • B. 

      Visible.

    • C. 

      Infrared.

    • D. 

      Ultraviolet.

  • 11. 
    Which radiation has the ability to separate orbital electrons from their nuclei creating an ion?
    • A. 

      Visible.

    • B. 

      Ionizing.

    • C. 

      Ultraviolet.

    • D. 

      Nonionizing.

  • 12. 
    Which component amplifies the RFR signal?
    • A. 

      Receiver.

    • B. 

      Modulator.

    • C. 

      Transmitter

    • D. 

      Transmission line.

  • 13. 
    Which component transfers RFR energy to the antenna?
    • A. 

      Receiver.

    • B. 

      Modulator.

    • C. 

      Transmitter.

    • D. 

      Transmission line.

  • 14. 
    If the wavelength of a RFR emission is 20 cm, a waveguide designed for it must have one dimension that is at least
    • A. 

      5 cm.

    • B. 

      10 cm.

    • C. 

      20 cm.

    • D. 

      40 cm.

  • 15. 
    What is an example of a RFR emitter the USAF uses for its mission?
    • A. 

      Cathode.

    • B. 

      Scanner.

    • C. 

      Laser pointer.

    • D. 

      Electronic countermeasures.

  • 16. 
    Which RFR health effect is the biological effect not associated with thermal absorption?
    • A. 

      Indirect.

    • B. 

      Thermal.

    • C. 

      Athermal.

    • D. 

      Resonance.

  • 17. 
    Which RFR emitter should be the highest priority during the evaluation phase?
    • A. 

      Ground-level hazard.

    • B. 

      Climbing hazard.

    • C. 

      Short duration.

    • D. 

      Inaccessible.

  • 18. 
    Which RFR emitter should be the second priority during the evaluation phase?
    • A. 

      Inaccessible.

    • B. 

      Short duration.

    • C. 

      Climbing hazard.

    • D. 

      Ground-level hazard.

  • 19. 
    When evaluating these RFR emitters, their repair and maintenance shops should be a higher priority than routine operations.
    • A. 

      Inaccessible.

    • B. 

      Short duration.

    • C. 

      Climbing hazard.

    • D. 

      Ground-level hazard.

  • 20. 
    Which risk rating indicates the transmission time is too short to exceed the average power density allowed for that frequency?
    • A. 

      Low.

    • B. 

      High.

    • C. 

      Moderate.

    • D. 

      Acceptable.

  • 21. 
    If you need the RFR PEL for radiation workers that have been trained and understand the hazards of exposure, you should look in the table for which environment?
    • A. 

      Uncontrolled.

    • B. 

      Unshielded.

    • C. 

      Controlled.

    • D. 

      Shielded.

  • 22. 
    Which RFR environment would describe the exposure for customers at a golf course near an emitter?
    • A. 

      Shielded.

    • B. 

      Controlled.

    • C. 

      Unshielded.

    • D. 

      Uncontrolled.

  • 23. 
    Which kind of system is described with the information below? Frequency: 150 MHz PW: 1.2 microseconds PRF: 320 pps Antenna gain: 52 dB Antenna type: Aperature
    • A. 

      Laser.

    • B. 

      Pulsed wave.

    • C. 

      Ionizing source.

    • D. 

      Continuous wave.

  • 24. 
    What step must you take after obtaining RFR meter readings in order to find the real power density?
    • A. 

      Compensate for temperature.

    • B. 

      Multiply by the correction factor.

    • C. 

      Account for the calibration curve.

    • D. 

      Calculate the time-weighted average.

  • 25. 
    When performing RFR measurements, always start
    • A. 

      Farther away from the antenna than the calculated distance.

    • B. 

      The same area around the antenna as the calculated distance.

    • C. 

      Twice the calculated distance away from the antenna.

    • D. 

      Closer to the antenna than the calculated distance.

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