1W0510 CDC Practice Test B Set Book 3

100 Questions | Total Attempts: 408

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1W0510 Quizzes & Trivia

1W0510 CDC Practice Test B Set Book 3


Questions and Answers
  • 1. 
    Under Wien’s Law, on what is the wavelength of the maximum irradiance of a black body dependent?
    • A. 

      Temperature

    • B. 

      Wavelength

    • C. 

      Color

    • D. 

      Distance

  • 2. 
    Explain Planck’s law.
    • A. 

      The amount of radiation emitted by a black body at a given wavelength is proportional to its temperature

    • B. 

      The amount of radiation emitted by a black body at a given wavelength is inversely proportional to its temperature

    • C. 

      The amount of radiation emitted by a black body at a given wavelength is proportional to its distance

    • D. 

      The amount of radiation emitted by a black body at a given wavelength is proportional to its size

  • 3. 
    What METSAT function allows systems to be put in motion?
    • A. 

      Animated Looping

    • B. 

      Circular Motion

    • C. 

      Anthresis

    • D. 

      Satellite Visibility Function

  • 4. 
    What is the inclination angle of the polar orbiting satellites?
    • A. 

      The inclination angle (88.7°)

    • B. 

      The inclination angle (98.7°)

    • C. 

      The inclination angle (78.7°)

    • D. 

      The inclination angle (108.7°)

  • 5. 
    Of what areas do polar orbiting satellites provide coverage?
    • A. 

      Approximately 472 nautical miles (nm), allow for global coverage every 4 hours

    • B. 

      Approximately 472 nautical miles (nm), allow for global coverage every 8 hours

    • C. 

      Approximately 472 nautical miles (nm), allow for global coverage every 12 hours

    • D. 

      Approximately 472 nautical miles (nm), allow for global coverage every 6 hours

  • 6. 
    Geosynchronous satellites orbit the earth at the same angular velocity as what?
    • A. 

      The Moon

    • B. 

      The Earth

    • C. 

      Other Satellites

    • D. 

      The Speed of Sound

  • 7. 
    Which satellite allows you to loop imagery to follow fronts, lows, severe weather, and many other cloud and non-cloud features?
    • A. 

      Polar Satewllites

    • B. 

      Visible Satellites

    • C. 

      Orbital

    • D. 

      Geostationary Satellites

  • 8. 
    What frequencies have two channels to include both horizontal and vertical polarizations?
    • A. 

      37 and 85.5GHz

    • B. 

      19.3 and 37GHz

    • C. 

      19.3 and 85.5GHz

    • D. 

      19.3, 37, and 85.5GHz

  • 9. 
    How long does it take the SSM/I sensor to complete one complete revolution of the globe?
    • A. 

      98

    • B. 

      102

    • C. 

      64

    • D. 

      96

  • 10. 
    What is the scan width ( in degrees)covered by SSM/I at the earth’s surface?
    • A. 

      45

    • B. 

      90

    • C. 

      60

    • D. 

      35

  • 11. 
    How accurate (by kelvins) are brightness temperatures for SDRs?
    • A. 

      Within 1

    • B. 

      Within 3

    • C. 

      Within 7

    • D. 

      Within 5

  • 12. 
    Why is the exact location of the anticyclone’s circulation center difficult to place?
    • A. 

      Because anticyclones are fast moving features

    • B. 

      Because anticyclones are slow moving features

    • C. 

      Because anticyclones are nearly invisible features

    • D. 

      Because anticyclones are large, broad features

  • 13. 
    What should you look for on infrared imagery to indicate that precipitation is increasing?
    • A. 

      Rapidly shrinking and heating cloud tops are an indication precipitation will increase.

    • B. 

      Rapidly expanding and heating cloud tops are an indication precipitation will increase.

    • C. 

      Rapidly shrinking and cooling cloud tops are an indication precipitation will increase.

    • D. 

      Rapidly expanding and cooling cloud tops are an indication precipitation will increase.

  • 14. 
    What type of cloud pattern is the first indicator a short-wave trough is interacting with a frontal boundary?
    • A. 

      A slight “V” shape developing on the cold-air side of the cloud pattern.

    • B. 

      A slight “S” shape developing on the cold-air side of the cloud pattern.

    • C. 

      A slight “L” shape developing on the cold-air side of the cloud pattern.

    • D. 

      A slight “D” shape developing on the cold-air side of the cloud pattern.

  • 15. 
    A theoretically perfect absorber and emitter of radiation is
    • A. 

      A gray body.

    • B. 

      A black body.

    • C. 

      A white body.

    • D. 

      An electromagnetic body.

  • 16. 
    The ratio of the total amount of radiation reflected from an object to the total amount of incident radiation is called
    • A. 

      Emissivity.

    • B. 

      Scattering.

    • C. 

      Reflectivity

    • D. 

      Absorptivity.

  • 17. 
    Which law says that the amount of radiation emitted by a black body at a given wavelength is proportional to its temperature?
    • A. 

      Stefan’s law.

    • B. 

      Kirchoff’s law.

    • C. 

      Planck’s law.

    • D. 

      Wien displacement law.

  • 18. 
    Meteorological satellite (METSAT) imagery is more advantageous than synoptic reports because it
    • A. 

      Is less contaminated by raw data.

    • B. 

      Is a forecast that occurs more frequently.

    • C. 

      Is an observation that occurs more frequently.

    • D. 

      Shows areas of high temperature and moisture relationships.

  • 19. 
    The geosynchronous satellite stays in position because of a combination of
    • A. 

      Angular velocity and centripetal force.

    • B. 

      Angular velocity and centrifugal force.

    • C. 

      Centripetal force and gravity.

    • D. 

      Centrifugal force and gravity.

  • 20. 
    Which is not a geosynchronous satellite?
    • A. 

      Meteorological Satellite (METEOSAT).

    • B. 

      Defense Meteorological Satellite Program (DMSP) satellite.

    • C. 

      Geostationary Meteorological Satellite (GMS).

    • D. 

      Geosynchronous Operational Environmental Satellite (GOES).

  • 21. 
    Which is a factor that affects the amount of brightness measured by visible meteorological satellite (METSAT) imagery?
    • A. 

      Types of radiative transfer taking place.

    • B. 

      Type of passive remote sensing device on the satellite.

    • C. 

      Angle of the sun.

    • D. 

      Type of multispectral color-composite imagery involved.

  • 22. 
    Most meteorological satellite (METSAT) sensors are designed so that the visual imagery is a combination of
    • A. 

      Near and far infrared wave lengths.

    • B. 

      Visual and near infrared wave lengths.

    • C. 

      Water vapor and far infrared wave lengths.

    • D. 

      Visual and far infrared wave lengths.

  • 23. 
    With water vapor (WV) imagery, why do middle and high-level moisture affect the sensor much more than low-level moisture?
    • A. 

      Absorption is highest between 610 to 240mb.

    • B. 

      Absorption is lowest between 610 to 240 millibars (mb).

    • C. 

      Reflectivity is lowest between 610 to 240mb.

    • D. 

      Reflectivity is highest between 610 to 240mb.

  • 24. 
    Which is not a use for water vapor imagery?
    • A. 

      Identifying potential thunderstorm areas.

    • B. 

      Determining the polar front (PFJ) and subtropical jets (STJ).

    • C. 

      Identifying circulation centers, troughs, ridges, and wind maximums.

    • D. 

      Determining the thickness of mid and upper-level clouds.

  • 25. 
    Which far infrared (FIR) enhancement curve is a good all-purpose curve we most commonly use for identifying convective activity?
    • A. 

      MB curve.

    • B. 

      JG curve.

    • C. 

      CC curve.

    • D. 

      ZA curve.

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