Related Topics
Take Another Quiz

Weather Final Practice Quiz (exam 1)

47 Questions
Weather Quizzes & Trivia

Quiz of previous exam questions that may possibly be on the final - trying to memorize the answers.  

Questions and Answers
  • 1. 
    On the average, about what percentage of the solar energy that strikes the outer atmosphere eventually reaches the earth's surface?
    • A. 

      70%

    • B. 

      30%

    • C. 

      15%

    • D. 

      5%

    • E. 

      50%

  • 2. 
    A supercooled cloud droplet refers to a droplet whose temperature is below
    • A. 

      +10 degrees c

    • B. 

      -20 degrees c

    • C. 

      0 degrees c

    • D. 

      -40 degrees c

    • E. 

      -10 degrees c

  • 3. 
    During the ice crystal process of rain formation
    • A. 

      The cloud must be a cumuliform cloud

    • B. 

      Only ice crystals need to be present in a cloud

    • C. 

      The temperature in the cloud must be -40 degrees or below

    • D. 

      Ice crystals grow larger at the expense of surrounding liquid cloud droplets

  • 4. 
    A rising parcel of air that does not exchange heat with its surroundings is referred to as
    • A. 

      Forced lifting

    • B. 

      An adiabatic process

    • C. 

      Isothermal ascent

    • D. 

      Advection

  • 5. 
    A temperature of 27 degrees c would be equal to what temperature on the Kelvin scale?
    • A. 

      300k

    • B. 

      0k

    • C. 

      100k

    • D. 

      27k

    • E. 

      270k

  • 6. 
    The flat top of a thunderstorm about 30,000 feet or 10km high would mark the top of the
    • A. 

      Atmosphere

    • B. 

      Troposphere

    • C. 

      Mesosphere

    • D. 

      Stratosphere

  • 7. 
    The growth of a precipitation particle by the collision of an ice crystal (or snowflake) with a supercooled liquid droplet is called
    • A. 

      Accretion

    • B. 

      Condensation

    • C. 

      Spontaneous nucleation

    • D. 

      Deposition

  • 8. 
    If very cold air is brought indoors and warmed with no change in its moisture content, the saturation vapor pressure of this air will ______ and the relative humidity of this air will ______
    • A. 

      Decrease, decrease

    • B. 

      Increase, decrease

    • C. 

      Increase, increase

    • D. 

      Decrease, increase

  • 9. 
    Which of the following is considered a variable gas in the earth's atmosphere?
    • A. 

      Nitrogen

    • B. 

      Oxygen

    • C. 

      Carbon dioxide

    • D. 

      Argon

    • E. 

      All of the above

  • 10. 
    In clear weather the air next to the ground is usually ______ than the air above during the night , and _______ than the air above during the day
    • A. 

      Warmer, warmer

    • B. 

      Warmer, colder

    • C. 

      Colder, colder

    • D. 

      Colder, warmer

  • 11. 
    The earth's radiation is often referred to as _______ radiation, while the sun's radiation is often referred to as _______ radiation
    • A. 

      Longwave, shortwave

    • B. 

      Shortwave, shortwave

    • C. 

      Shortwave, longwave

    • D. 

      Longwave, longwave

  • 12. 
    When the air temperature increases, the saturation vapor pressure will
    • A. 

      Increase

    • B. 

      Vary over an increasingly broad range of values

    • C. 

      Decrease

    • D. 

      Remain the same

  • 13. 
    Which of the following is generally true at night?
    • A. 

      The earth emits and absorbs energy at equal rates

    • B. 

      The earth does not absorb any energy

    • C. 

      The earth does not emit any energy

    • D. 

      The earth emits more energy than it absorbs

  • 14. 
    The amount of forced exerted over an area of surface is called
    • A. 

      Temperature

    • B. 

      Density

    • C. 

      Weight

    • D. 

      Pressure

  • 15. 
    In a volume of air near the earth's surface, _______ occupies 78%, and _____ nearly 21%
    • A. 

      Hydrogen, helium

    • B. 

      Hydrogen, oxygen

    • C. 

      Nitrogen, water vapor

    • D. 

      Nitrogen, oxygen

    • E. 

      Oxygen, hydrogen

  • 16. 
    The rate at which the temperature changes inside a rising (or descending) parcel of saturated air is called
    • A. 

      The environmental lapse rate

    • B. 

      The latent heat release rate

    • C. 

      The moist adiabatic lapse rate

    • D. 

      The dry adiabatic lapse rate

  • 17. 
    If an air parcel initially has a temperature of 20 degrees c, what is the temperature of the parcel after lifting it a distance of 2 kilometers at the dry adiabatic rate?
    • A. 

      15 degrees c

    • B. 

      40 degrees c

    • C. 

      -5 degrees c

    • D. 

      20 degrees c

    • E. 

      0 degrees c

  • 18. 
    The collision and coalescence precipitation process involves
    • A. 

      Droplets of various sizes

    • B. 

      Condensation nucli and ice nucli

    • C. 

      Condensation nucli and ice crystals

    • D. 

      Ice crystals and supercooled droplets

  • 19. 
    Cloud condensation nuclei are classified as 
    • A. 

      Greenhouse gases

    • B. 

      Fog

    • C. 

      Noble gases

    • D. 

      Aerosols

  • 20. 
    The nitrogen gas (N2) in the atmosphere is removed by
    • A. 

      A process involving soil bacteria

    • B. 

      None of these

    • C. 

      Plant photosynthesis

    • D. 

      Decaying organic matter

  • 21. 
    If the environmental lapse rate is 8 degrees c per kilometer and the moist adiabatic rate is 6 degrees per kilometer, the atmosphere is
    • A. 

      Stable

    • B. 

      Neutral

    • C. 

      Unstable

  • 22. 
    The process of condensation and freezing
    • A. 

      Do not affect the temperature of their surroundings

    • B. 

      Both release sensible heat into the environment

    • C. 

      Both absorb sensible heat from the environment

    • D. 

      Do not involve energy transport

  • 23. 
    At any given time, the atmosphere contains the equivalent of _____ globally distributed precipitation
    • A. 

      40 inches (101.6 cm)

    • B. 

      4 inches (10.2 cm)

    • C. 

      1 inch (2.5 cm)

    • D. 

      2 inches (5.1 cm)

    • E. 

      20 inches (50.8 cm)

  • 24. 
    Incoming solar radiation in middle latitudes is less in winter than in summer because
    • A. 

      The cold dense air lowers the intensity of the sun's rays

    • B. 

      The sun's rays slant more and spread their energy over a larger area

    • C. 

      There is a decrease in carbon dioxide levels in the atmosphere

    • D. 

      The earth is furthest from the sun

  • 25. 
    Although the polar regions radiate away more heat energy than they receive by insolation in the course of a year, they are prevented from becoming progressively colder each year by the
    • A. 

      Conduction of heat through the interior of the earth

    • B. 

      Concentration of earth's magnetic field lines at the poles

    • C. 

      Release of latent heat to the atmosphere when polar ice melts

    • D. 

      Circulation of heat by the atmosphere and oceans

    • E. 

      The insulating properties of snow

  • 26. 
    The difference between "moist" and "dry" adiabatic rates is due to the fact that
    • A. 

      Latent heat is released by a rising parcel of saturated air

    • B. 

      Saturated air is always unstable

    • C. 

      An unsaturated air parcel expands more rapidly than a saturated air parcel

    • D. 

      Moist air weighs less than dry air

  • 27. 
    As the air temperature increases, with no addition of water vapor to the air, the dew point will
    • A. 

      Increase and become equal to the air temperature

    • B. 

      Remain the same

    • C. 

      Increase

    • D. 

      Decrease

  • 28. 
    If an air parcel initially has a temperature of 10 degrees c, what is the temperature of the parcel after lifting it a distance of 1 kilometer at a moist adiabatic rate of 7 degrees c per kilometer?
    • A. 

      0 degrees c

    • B. 

      3 degrees c

    • C. 

      7 degrees c

    • D. 

      -7 degrees c

    • E. 

      17 degrees c

  • 29. 
    A knowledge of air stability is important because
    • A. 

      It determines seasonal weather patterns

    • B. 

      It determines the vertical motion of air

    • C. 

      It determines the movement of high pressure areas

    • D. 

      It determines the direction of movement of storms

  • 30. 
    The word "weather" is defined as
    • A. 

      The average of the weather elements

    • B. 

      Any type of falling precipitation

    • C. 

      The climate of a region

    • D. 

      The condition of the atmosphere at a particular time and place

  • 31. 
    Water vapor is
    • A. 

      Another name for fog

    • B. 

      A cloud of small water droplets

    • C. 

      A gas

    • D. 

      A cloud of small ice crystals

  • 32. 
    The order of the layers of the atmosphere from lowest to highest is
    • A. 

      Thermosphere, stratosphere, mesosphere, troposphere

    • B. 

      Troposphere, stratosphere, mesosphere, thermosphere

    • C. 

      Mesosphere, stratosphere, troposphere, thermosphere

    • D. 

      Stratosphere, troposphere, thermosphere, mesosphere

  • 33. 
    Heat energy is taken from the environment, cooling the air when 
    • A. 

      Freezing occurs

    • B. 

      Evaporation occurs

    • C. 

      Deposition occurs

    • D. 

      Condensation occurs

  • 34. 
    A dim, water sun visible through a gray sheet-like cloud layer is often a good indication of _____ clouds
    • A. 

      Cumulonimbus

    • B. 

      Cirrostratus

    • C. 

      Nimbostratus

    • D. 

      Stratocumulus

    • E. 

      Altostratus

  • 35. 
    The combined albedo of the earth and the atmosphere is approximately 
    • A. 

      4 percent

    • B. 

      90 percent

    • C. 

      50 percent

    • D. 

      10 percent

    • E. 

      30 percent

  • 36. 
    The atmospheric greenhouse effect is due primarily to the fact that
    • A. 

      Nitrogen and oxygen transmit visible radiation

    • B. 

      Oxygen and ozone absorb ultraviolet radiation

    • C. 

      Cloud formation releases latent heat energy

    • D. 

      Carbon dioxide and water vapor absorb infrared radiation

  • 37. 
    The earth's atmosphere is divided into layers based on changes in the vertical profile of
    • A. 

      Air pressure

    • B. 

      Air temperature

    • C. 

      Air density

    • D. 

      Wind speed

  • 38. 
    Which of the following provides a measure of the average speed of air molecules
    • A. 

      Pressure

    • B. 

      Density

    • C. 

      Heat

    • D. 

      Temperature

  • 39. 
    In the Northern Hemisphere, this day has the fewest hours of daylight
    • A. 

      Summer solstice

    • B. 

      Winter solstice

    • C. 

      Autumnal equinox

    • D. 

      Both the vernal and autumnal equinoxes

    • E. 

      Vernal equinox

  • 40. 
    The temperature to which air must be cooled in order to become saturated is the
    • A. 

      Minimum temperature

    • B. 

      Wet-bulb temperature

    • C. 

      Dew point temperature

    • D. 

      Freezing point

  • 41. 
    Which of the following is NOT a heat-transport process in the atmosphere?
    • A. 

      Conduction

    • B. 

      Convection

    • C. 

      Convergence

    • D. 

      Radiation

  • 42. 
    Atmospheric pressure changes _____ near the surface and ______ at higher altitudes
    • A. 

      Slowly, slowly

    • B. 

      Rapidly, slowly

    • C. 

      Slowly, rapidly

    • D. 

      Rapidly, rapidly

  • 43. 
    If the air temperature in a room is 70 degrees f, the saturation vapor pressure is 25 mb, the dew point temperature is 45 degrees f, and the actual vapor pressure is 10 mb, the relative humidity must be _____ percent 
    • A. 

      10

    • B. 

      20

    • C. 

      40

    • D. 

      70

    • E. 

      30

  • 44. 
    In the middle latitudes, which cloud will have the highest base?
    • A. 

      Cumulonimbus

    • B. 

      Altostratus

    • C. 

      Cirrostratus

    • D. 

      Cumulus

  • 45. 
    Which cloud type is composed of ice crystals and can cause a halo to form around the sun or moon?
    • A. 

      Altostratus

    • B. 

      Nimbostratus

    • C. 

      Stratus

    • D. 

      Cirrostratus

  • 46. 
    Which of the following weather elements ALWAYS decreases as we climb upward in the atmosphere?
    • A. 

      Temperature

    • B. 

      Pressure

    • C. 

      Wind

    • D. 

      Moisture

    • E. 

      All of the above

  • 47. 
    The Earth's surface receives about ______ as much direct solar radiation compared to longwave radiation from the atmosphere 
    • A. 

      One half

    • B. 

      Twice

    • C. 

      Five times

    • D. 

      One fifth

    • E. 

      One tenth