Ppl - Meteorology

40 Questions | Total Attempts: 8493

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Ppl - Meteorology - Quiz

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Questions and Answers
  • 1. 
    A stable air mass is most likely to have which characteristic?
    • A. 

      Showery precipitation.

    • B. 

      Poor surface visibility.

    • C. 

      Turbulent air.

  • 2. 
    The suffix "nimbus,'' used in naming clouds, means:
    • A. 

      A rain cloud.

    • B. 

      A cloud with extensive vertical development.

    • C. 

      A middle cloud containing ice pellets.

  • 3. 
    Clouds are divided into four families according to their:
    • A. 

      Height range.

    • B. 

      Composition.

    • C. 

      Outward shape.

  • 4. 
    Crests of standing mountain waves may be marked by stationary, lens-shaped clouds known as:
    • A. 

      Standing lenticular clouds.

    • B. 

      Roll clouds.

    • C. 

      Mammatocumulus clouds.

  • 5. 
    What clouds have the greatest turbulence?
    • A. 

      Nimbostratus.

    • B. 

      Towering cumulus.

    • C. 

      Cumulonimbus.

  • 6. 
    What cloud types would indicate convective turbulence?
    • A. 

      Towering cumulus clouds.

    • B. 

      Cirrus clouds.

    • C. 

      Nimbostratus clouds.

  • 7. 
    Possible mountain wave turbulence could be anticipated when winds of 40 knots or greater blow:
    • A. 

      Parallel to a mountain peak, and the air is stable.

    • B. 

      Across a mountain ridge and the air is stable.

    • C. 

      Down a mountain valley and the air is unstable.

  • 8. 
    Every physical process of weather is accompanied by, or is the result of, a:
    • A. 

      Movement of air.

    • B. 

      Pressure differential.

    • C. 

      Heat exchange.

  • 9. 
    What causes variations in altimeter settings between weather reporting points?
    • A. 

      Unequal heating of the Earth's surface.

    • B. 

      Variation of terrain elevation.

    • C. 

      Coriolis force.

  • 10. 
    What measurement can be used to determine the stability of the atmosphere?
    • A. 

      Actual lapse rate.

    • B. 

      Atmospheric pressure.

    • C. 

      Surface temperature.

  • 11. 
    What would decrease the stability of an air mass?
    • A. 

      Cooling from below.

    • B. 

      Decrease in water vapor.

    • C. 

      Warming from below.

  • 12. 
    What is the characteristic of stable air?
    • A. 

      Unlimited visibility.

    • B. 

      Cumulus clouds.

    • C. 

      Stratiform clouds.

  • 13. 
    Clouds, fog, or dew will always form when:
    • A. 

      Relative humidity reaches 100 percent.

    • B. 

      Water vapor is present.

    • C. 

      Water vapor condenses.

  • 14. 
    The amount of water vapor which air can hold depends on the:
    • A. 

      Air temperature.

    • B. 

      Dew point.

    • C. 

      Stability of the air.

  • 15. 
    What are the processes by which moisture is added to unsaturated air?
    • A. 

      Super saturation and evaporation.

    • B. 

      Evaporation and sublimation.

    • C. 

      Heating and condensation.

  • 16. 
    What is meant by the term 'dewpoint'?
    • A. 

      The temperature to which air must be cooled to become saturated.

    • B. 

      The temperature at which dew will always form.

    • C. 

      The temperature at which condensation and evaporation are equal.

  • 17. 
    The greatest vortex strength occurs when the generating aircraft is:
    • A. 

      Heavy, dirty, and fast.

    • B. 

      Heavy, clean, and slow.

    • C. 

      Light, dirty, and fast.

  • 18. 
    When taking off or landing at an airport where heavy aircraft are operating, one should be particularly alert to the hazards of wingtip vortices because this turbulence tends to?
    • A. 

      Sink into the flight path of aircraft operating below the aircraft generating the turbulence.

    • B. 

      Rise from a crossing runway into the takeoff or landing path.

    • C. 

      Rise into the traffic pattern area surrounding the airport.

  • 19. 
    Which weather phenomenon is always associated with a thunderstorm?
    • A. 

      Hail.

    • B. 

      Lightning.

    • C. 

      Heavy rain.

  • 20. 
    Wingtip vortices are created only when an aircraft is?
    • A. 

      Heavily loaded.

    • B. 

      Developing lift.

    • C. 

      Operating at high airspeeds.

  • 21. 
    When landing behind a large aircraft, the pilot should avoid wake turbulence by staying?
    • A. 

      Above the large aircraft's final approach path and landing beyond the large aircraft's touchdown point.

    • B. 

      Below the large aircraft's final approach path and landing before the large aircraft's touchdown point.

    • C. 

      Above the large aircraft's final approach path and landing before the large aircraft's touchdown point.

  • 22. 
    When departing behind a heavy aircraft, the pilot should avoid wake turbulence by maneuvering the aircraft?
    • A. 

      Below and upwind from the heavy aircraft.

    • B. 

      Below and downwind from the heavy aircraft.

    • C. 

      Above and upwind from the heavy aircraft.

  • 23. 
    What feature is normally associated with the cumulus stage of a thunderstorm?
    • A. 

      Frequent lightning.

    • B. 

      Continuous updraft.

    • C. 

      Roll cloud.

  • 24. 
    Which weather phenomenon signals the beginning of the mature stage of a thunderstorm?
    • A. 

      The appearance of an anvil top.

    • B. 

      Maximum growth rate of the clouds.

    • C. 

      Precipitation beginning to fall.

  • 25. 
    During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts:Which one do you like?
    • A. 

      Mature.

    • B. 

      Cumulus.

    • C. 

      Dissipating.

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