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1. What is the boiling point of water on the Fahrenheit scale?

   1.   ?    186 degrees
   2.   ?    32 degrees
   3.   ?    267 degrees
   4.   ?    100 degrees
   5.   ?    212 degrees

2. What type of fog forms only at night, over a land surface?

   1.   ?    Moon fog
   2.   ?    Radiation fog
   3.   ?    Frontal fog
   4.   ?    Advection fog
   5.   ?    Steam fog.

3. What publications provide long-range weather predictions for the year ahead?

   1.   ?    Calendar forecasts
   2.   ?    Terminal forecasts
   3.   ?    Area forecasts
   4.   ?    Almanacs
   5.   ?    Local forecasts

4. What device is commonly used on ships to speed up the process of getting accurate relative humidity and dew point readings?

   1.   ?    Wet Bulb Barometers.
   2.   ?    Chronometers
   3.   ?    Fixed Psychrometers
   4.   ?    Dry Bulb Barometers.
   5.   ?    Sling Psychrometers.

5. What was set up in 1938 in order to provide advance warning of hurricanes?

   1.   ?    The Storm Warning Signal System
   2.   ?    The Hurricane Warning Network
   3.   ?    The U.S. Hurricane Warning System
   4.   ?    The Coast Guard Weather Monitoring Service
   5.   ?    The National Weather Service

6. The chemosphere, or ozone layer, lies mainly between what two layers of the atmosphere?

   1.   ?    The troposphere and the mesosphere.
   2.   ?    The stratosphere and mesosphere.
   3.   ?    The troposphere and the stratosphere.
   4.   ?    The mesosphere and the exosphere.
   5.   ?    The thermosphere and the exosphere.

7. Where is the Storm Prediction Center located?

   1.   ?    Camp Springs, Maryland
   2.   ?    Norman, Oklahoma
   3.   ?    Kansas City, Missouri
   4.   ?    Boulder, Colorado
   5.   ?    Miami, Florida

8. What part of the world sees the most tornadoes?

   1.   ?    The northwest United States
   2.   ?    The Midwest United States
   3.   ?    The Russian steppes
   4.   ?    The Gobi Desert
   5.   ?    The Florida panhandle

9. Which type of frontal movement is the fastest?

   1.   ?    Polar front
   2.   ?    Arctic front
   3.   ?    Cold front
   4.   ?    Warm front
   5.   ?    Occluded front

10. What is or was the "TIROS"?

    1.   ?    The first weather avoidance radar system used onboard commercial aircraft.
    2.   ?    The latest radar technology used to determine wind velocity in tornadoes.
    3.   ?    A supercomputer used by the National Weather Service to more accurately predict storm movement.
    4.   ?    The first weather satellite.
    5.   ?    The weather agency of the United Nations.

11. What is the name of the instrument used to measure wind speed?

    1.   ?    An hygrometer.
    2.   ?    A windmill
    3.   ?    A psychrometer
    4.   ?    An anemometer
    5.   ?    A Beaufort Scale

12. At sea, wind direction is specified according to what?

    1.   ?    Wind direction can be specified by using several different methods.
    2.   ?    From the heading of the ship.
    3.   ?    From the bearing of the ship.
    4.   ?    From the compass direction it is coming from.
    5.   ?    From the compass direction it is blowing to.

13. Most of the airflow over the United States is provided by what bands of winds?

    1.   ?    The Southeast Trades
    2.   ?    No one group of winds provides the majority of airflow over the U.S.
    3.   ?    The Prevailing Westerlies
    4.   ?    The Prevailing Easterlies
    5.   ?    The Northeast Trades

14. What scientist first developed a system for organizing weather observations, using the Black Sea region's weather patterns to predict storm movements?

    1.   ?    U. J. Leverrier
    2.   ?    Evangelista Torricelli
    3.   ?    Leonardo da Vinci
    4.   ?    Galileo Galilei
    5.   ?    Vilheim Bjerknes

15. Which of the following is NOT an indication of the passage of a cold front?

    1.   ?    A drop in temperature
    2.   ?    A wind shift
    3.   ?    Rapid clearing of the sky
    4.   ?    A rise in pressure
    5.   ?    Poor visibility

16. What type of cloud is shown in this picture?
    

    1.   ?    Cirrocumulus
    2.   ?    Cirrostratus
    3.   ?    Cumulonimbus
    4.   ?    Altostratus
    5.   ?    Nimbostratus

17. Which one of these symbols on a weather map indicates winds of between 55 and 60 miles per hour?

    1.   ?    
    2.   ?    
    3.   ?    
    4.   ?    
    5.   ?    

18. A band of unstable weather encircling the Earth in the doldrums is located in which of the Earth's frontal zones?

    1.   ?    The Intertropical Convergence Zone
    2.   ?    The Arctic Frontal Zone
    3.   ?    The Polar Frontal Zone
    4.   ?    The Prevailing Westerlies Frontal Zone
    5.   ?    The Polar Easterlies Convergence Zone

19. Which of the following best describes how barometric pressure readings are given on TV and on weather charts?

    1.   ?    Both methods use measurements in millibars.
    2.   ?    Both methods use measurements in inches of mercury.
    3.   ?    TV readings are in degrees Fahrenheit while charts depict degrees Celsius.
    4.   ?    Readings are in millibars on TV and in inches of mercury on weather charts.
    5.   ?    Readings are in inches of mercury on TV and in millibars on weather charts.

20. Which of the following is NOT one of the 5 principal layers of the earth's atmosphere?

    1.   ?    Photosphere
    2.   ?    Stratosphere
    3.   ?    Exosphere
    4.   ?    Troposphere
    5.   ?    Mesophere

21. What would 56 degrees Fahrenheit equate to on the Celsius scale?

    1.   ?    100 degrees Celsius.
    2.   ?    13 degrees Celsius
    3.   ?    28 degrees Celsius.
    4.   ?    0 degrees Celsius.
    5.   ?    44 degrees Celsius

22. What does this symbol indicate on a weather map?
    

    1.   ?    A hurricane
    2.   ?    A stationary front
    3.   ?    A warm front
    4.   ?    An occluded front
    5.   ?    A cold front

23. Which of the following is NOT one of the main low cloud types?

    1.   ?    Altostratus
    2.   ?    Cumulus
    3.   ?    Stratus
    4.   ?    Stratocumulus
    5.   ?    Nimbostratus

24. Which of the following is NOT one of the overlapping areas of the Tropopause?

    1.   ?    All three listed areas are a part of the Tropopause.
    2.   ?    Arctic tropopause
    3.   ?    The Tropopause is not made up of overlapping sub areas.
    4.   ?    Tropical
    5.   ?    Extratropical

25. Air flowing outward from a high-pressure area is known as what?

    1.   ?    The Doldrums
    2.   ?    Convergence
    3.   ?    Divergence
    4.   ?    The Polar Front Zone
    5.   ?    The Prevailing Westerlies

26. Which stage of thunderstorm development is characterized by both updrafts and down-drafts?

    1.   ?    The dissipating stage
    2.   ?    The anvil stage
    3.   ?    The first stage.
    4.   ?    The cumulus stage
    5.   ?    The mature stage

27. The Jet Stream has been found to be strongest over which of the following countries?

    1.   ?    Australia
    2.   ?    Russia
    3.   ?    Japan
    4.   ?    Canada
    5.   ?    France

28. On average, how much larger than a cloud moisture droplet is a fully-formed raindrop?

    1.   ?    One million times larger
    2.   ?    A thousand times larger.
    3.   ?    Five hundred times larger
    4.   ?    One hundred times larger
    5.   ?    Ten times larger

29. What invention is regarded as the first step in the development of meteorology as a science?

    1.   ?    The invention of the psychrometer.
    2.   ?    The invention the first aneroid barometer by the French scientist Lucien Vidie.
    3.   ?    The invention of the thermometer by Galileo Galilei.
    4.   ?    The invention the first mercurial barometer by the Italian mathematician Evangelista Torricelli.
    5.   ?    The invention of the hygrometer by Leonardo da Vinci.

30. What is adiabatic warming or cooling?

    1.   ?    The daily increase and then reduction in temperature caused by the rising and setting of the sun.
    2.   ?    The process of air moving upwards as it is heated close to the surface of the Earth.
    3.   ?    The automatic temperature change in rising or falling air.
    4.   ?    The temperature to which air must be heated or cooled at a constant pressure and water vapor content to reach saturation.
    5.   ?    Warming or cooling as measured by aneroid barometers as opposed to mercurial barometers.

31. What is the principal weather agency in the United States?

    1.   ?    The National Oceanic and Atmospheric Administration
    2.   ?    The Department of Commerce
    3.   ?    The National Centers for Environmental Prediction
    4.   ?    The National Weather Service
    5.   ?    The Naval Meteorology and Oceanography Command

32. Where is the National Hurricane Center located?

    1.   ?    Kansas City, Missouri
    2.   ?    Norman, Oklahoma
    3.   ?    Camp Springs, Maryland
    4.   ?    Boulder, Colorado
    5.   ?    Miami, Florida

33. What type of weather front is formed when a warm-air mass moves over a cold air mass?

    1.   ?    A Cold Front
    2.   ?    A Polar Front
    3.   ?    A Warm Front
    4.   ?    A Tropical Front
    5.   ?    A Stationary Front

34. Carbon Dioxide makes up approximately what percentage of the Earth's atmosphere?

    1.   ?    Less than 1 percent.
    2.   ?    71 percent
    3.   ?    28 percent
    4.   ?    78 percent
    5.   ?    21 percent

35. What is the average temperature of air at sea level?

    1.   ?    65 degrees F
    2.   ?    56 degrees F
    3.   ?    50 degrees F
    4.   ?    60 degrees F
    5.   ?    56 degrees C

36. How is steam fog formed?

    1.   ?    When cold air moves over warm water.
    2.   ?    When warm air moves over warm land.
    3.   ?    It is caused when cold air moves over cold land.
    4.   ?    When warm air moves over cold water.
    5.   ?    It is caused by the Earth giving off heat at night.

37. Variations in atmospheric pressure are measured using what type of instrument?

    1.   ?    A thermometer
    2.   ?    A psychrometer
    3.   ?    An aneroid thermometer
    4.   ?    A barometer
    5.   ?    A mercurial thermometer

38. What type of aviation forecast provides landing and takeoff conditions at airfields along the route of flight?

    1.   ?    Local forecasts
    2.   ?    Flight forecasts
    3.   ?    Area forecasts
    4.   ?    Route forecasts
    5.   ?    Terminal forecasts

39. Where is the only permanent low-pressure area on the Earth located?

    1.   ?    Within the Horse Latitudes
    2.   ?    Within the Northeast Trades
    3.   ?    At the Doldrums Belt near the equator.
    4.   ?    At the north pole
    5.   ?    At the south pole

40. What type of cloud is shown in this picture?
    

    1.   ?    Cirrostratus
    2.   ?    Nimbostratus
    3.   ?    Cirrus
    4.   ?    Stratus
    5.   ?    Stratocumulus

41. Which of the following is a result of the leading gust of wind, or microburst, preceding a thunderstorm?

    1.   ?    Dust devils
    2.   ?    Lightning
    3.   ?    Wind shear
    4.   ?    Thunder
    5.   ?    Tornadoes

42. Two square red flags with black centers flown by day indicate what type of storm warning?

    1.   ?    Tornado Warning
    2.   ?    Gale Warning
    3.   ?    Small Craft Warning
    4.   ?    Storm Warning
    5.   ?    Hurricane Warning

43. Where is the Space Environmental Center located?

    1.   ?    Boulder, Colorado
    2.   ?    Camp Springs, Maryland
    3.   ?    Miami, Florida
    4.   ?    Kansas City, Missouri
    5.   ?    Norman, Oklahoma

44. Brief, violent, windstorms that occur at sea when war air rises, resulting in sudden, intense rainfall of short duration are called what?

    1.   ?    Willy-willies
    2.   ?    Typhoons
    3.   ?    Hurricanes
    4.   ?    Squalls
    5.   ?    Waterspouts

45. What type of cloud is shown in this picture?
    

    1.   ?    Cumulonimbus
    2.   ?    Altocumulus
    3.   ?    Cirrus
    4.   ?    Cirrocumulus
    5.   ?    Nimbostratus

46. Which of the following statements is true concerning rainmaking?

    1.   ?    Seeding can cause rain to fall over a large area.
    2.   ?    Seeding can cause rain to fall from fair skies.
    3.   ?    Seeding can cause rain to come a bit earlier than it would have naturally.
    4.   ?    Silver-iodide seeding is more expensive than carbon-dioxide seeding.
    5.   ?    Seeding cannot make more rain to fall than would have fallen naturally.

47. On which side of a mountain range will low pressure areas frequently form?

    1.   ?    The windward side.
    2.   ?    The northern side
    3.   ?    The leeward side.
    4.   ?    The southern side
    5.   ?    On the windward side in the daytime and the leeward side at night.

48. What is usually the cause of the greatest damage to coastal areas during an hurricane?

    1.   ?    The effect of the storm surge.
    2.   ?    The effect of the heavy rain.
    3.   ?    The effect of strong winds.
    4.   ?    Tidal wave action.
    5.   ?    The damage caused by lightning storms.

49. What is the name given to a tornado that forms over water?

    1.   ?    A microburst
    2.   ?    A waterspout
    3.   ?    A squall
    4.   ?    A willy-willy
    5.   ?    A wind shear

50. What type of crystals are dropped by aircraft into clouds to "seed" the clouds in an attempt to cause rainfall?

    1.   ?    Silver-nitrate
    2.   ?    Silver-iodide.
    3.   ?    Carbon monoxide
    4.   ?    Zircon
    5.   ?    Iron-nitrite

51. Which weather phenomena is considered to be of the greatest concern to the oceangoing sailor?

    1.   ?    Waterspouts
    2.   ?    Squalls
    3.   ?    Tropical cyclones
    4.   ?    Tornadoes
    5.   ?    Microbursts

52. Which of the following is not one of the three basic cloud types?

    1.   ?    Nimbus
    2.   ?    Cumulus
    3.   ?    Stratus
    4.   ?    Cirrus

53. Exceptionally high clouds with bases in the low-altitude area are known as what?

    1.   ?    Towering
    2.   ?    Cirrostratus
    3.   ?    Building
    4.   ?    Altostratus
    5.   ?    Altocumulus

54. What type of cloud is shown in this picture?
    

    1.   ?    Cirrus
    2.   ?    Nimbostratus
    3.   ?    Cirrostratus
    4.   ?    Stratus
    5.   ?    Cumulus

55. Cloud sequences occurring as much as 1,000 miles in advance of a front is seen with which type of frontal development?

    1.   ?    Polar fronts
    2.   ?    Cold fronts
    3.   ?    Occluded fronts
    4.   ?    Arctic fronts
    5.   ?    Warm fronts

56. A complex frontal system that occurs when a cold air mass overtakes a warm air mass is known as what?

    1.   ?    An Arctic Front
    2.   ?    A Cold Front
    3.   ?    An Occluded Front
    4.   ?    A Warm Front
    5.   ?    A Polar Front

57. Which type of aviation weather forecast pertains to the weather conditions on successive stages of a flight?

    1.   ?    Area forecasts
    2.   ?    Flight forecasts
    3.   ?    Local forecasts
    4.   ?    Terminal forecasts
    5.   ?    Route forecasts

58. A red light placed over a white light at night indicates what in the storm warning system?

    1.   ?    Gale Warning
    2.   ?    Hurricane Warning
    3.   ?    Small Craft Warning
    4.   ?    Tornado Warning
    5.   ?    Storm Warning

59. What is the difference in actions between a Warm Front and a Cold Front?

    1.   ?    There is no difference. They are simply named differently because the relative temperatures of the air they contain.
    2.   ?    Cold fronts push cold air ahead of them upward while warm fronts move upward over a cold air mass.
    3.   ?    Cold fronts push warm air ahead of it upward while warm fronts move upward over a cold air mass.
    4.   ?    Cold fronts push warm air ahead of them upward while warm fronts move under a cold air mass.
    5.   ?    Warm fronts push warm air ahead of it upward while cold fronts move upward over a warm air mass.

60. What type of pressure areas exist near the poles?

    1.   ?    High pressure areas
    2.   ?    Areas of unstable pressures
    3.   ?    Horse Latitudes
    4.   ?    Low pressure areas
    5.   ?    The Doldrums