NDSU Soil 217 Test 3 Questions
with Correct Answers
A stationary front does not move because - Answer-the winds blow parallel to the front.
A true cold front on a weather map is always - Answer-followed by cooler air.
Before the passage of a cold front the pressure normally ____, and after the passage of
a cold front the pressure normally ____. - Answer-drops; rises
Squall lines most often form ahead of a - Answer-cold front.
A "back door" cold front best describes which of the following situations? - Answer-a
cold front that moves into New England from the Atlantic Ocean
A halo around the Sun or Moon indicates that rain may be on the way because the halo
indicates a(n) - Answer-warm front may be approaching.
In winter, which sequence of clouds would you most likely expect to observe as a warm
front with precipitation approaches your location? - Answer-cirrus, cirrostratus,
altostratus, and nimbostratus
At a warm front, the warm air - Answer-rises and cools.
During the winter as you travel toward a warm front, the most likely sequence of
weather you would experience is - Answer-snow, sleet, freezing rain, and rain.
Occluded fronts may form when - Answer-a cold front overtakes a warm front.
What type of weather front would likely be responsible for the following weather
forecast? "Increasing cloudiness and warm today with the possibility of showers by this
evening. Turning much colder tonight. Winds southwesterly becoming gusty and shifting
to northwesterly by tonight." - Answer-cold front
What type of weather front would likely be responsible for the following weather
forecast? "Increasing high cloudiness and cold this morning. Clouds increasing and
lowering this afternoon with a chance of snow or rain tonight. Precipitation ending
tomorrow morning. Turning much warmer. Winds light easterly today becoming
southeasterly tonight and southwesterly tomorrow." - Answer-warm front
, What type of weather front would likely be responsible for the following weather
forecast? "Light rain and cold today with temperatures just above freezing.
Southeasterly winds shifting to westerly tonight. Turning colder with rain becoming
mixed with snow, then changing to snow." - Answer-dryline
Lake-effect snows are snowstorms that form on the ____ side of a large lake. - Answer-
downwind
Along a dryline, the ____ may drop markedly. - Answer-dew point temperatures
What type of front will most likely pass the area when the weather forecaster states
"Light rain and cold today, with temperatures just above freezing. Southeasterly winds
shifting to westerly tonight. Turning colder with rain becoming heavy and possibly
changing to snow"? - Answer-dryline
During the spring, on a warm, sunny day in Boston, Massachusetts, the wind shifts from
southwesterly to northeasterly and the weather turns cold, damp, and overcast. This
suggests that a "back door" cold front approached Boston from the - Answer-northeast
You are in upstate New York and observe the wind shift from easterly to southerly. This
shift in wind is accompanied by a sudden rise in both the air temperature and dew-point
temperature. This means a(n) ____ front passed. - Answer-warm
Air masses are usually classified according to their ____ and ____. - Answer-
temperature; humidity
1. The Hadley cell is referred to as a thermally direct cell because it is driven by _____
as warm air rises and cold air sinks. - Answer-energy from the sun
2. The region over equatorial waters where the air is warm, horizontal pressure
gradients are weak, and winds are light, is known as the _____. - Answer-doldrums
3. Between latitudes 40° and 65°, there are two semipermanent subpolar lows in the
North Atlantic: the _____ lows. - Answer-Greenland-Icelandic and Aleutian
4. the West Coast, the rainy season typically occurs in winter when the Pacific high ___
and the polar front and storms are able to penetrate the region. - Answer-moves south
5. As air density decreases with height, the same pressure gradient at lower altitudes
will produce _____ winds at higher levels. - Answer-stronger
6. The jet stream situated near 30° latitude at about 13 km (43,000 ft) is called the
_____ jet stream. - Answer-subtropical
7. The ultimate cause of jet streams is _____. - Answer-the energy imbalance that
exists between high and low latitudes
with Correct Answers
A stationary front does not move because - Answer-the winds blow parallel to the front.
A true cold front on a weather map is always - Answer-followed by cooler air.
Before the passage of a cold front the pressure normally ____, and after the passage of
a cold front the pressure normally ____. - Answer-drops; rises
Squall lines most often form ahead of a - Answer-cold front.
A "back door" cold front best describes which of the following situations? - Answer-a
cold front that moves into New England from the Atlantic Ocean
A halo around the Sun or Moon indicates that rain may be on the way because the halo
indicates a(n) - Answer-warm front may be approaching.
In winter, which sequence of clouds would you most likely expect to observe as a warm
front with precipitation approaches your location? - Answer-cirrus, cirrostratus,
altostratus, and nimbostratus
At a warm front, the warm air - Answer-rises and cools.
During the winter as you travel toward a warm front, the most likely sequence of
weather you would experience is - Answer-snow, sleet, freezing rain, and rain.
Occluded fronts may form when - Answer-a cold front overtakes a warm front.
What type of weather front would likely be responsible for the following weather
forecast? "Increasing cloudiness and warm today with the possibility of showers by this
evening. Turning much colder tonight. Winds southwesterly becoming gusty and shifting
to northwesterly by tonight." - Answer-cold front
What type of weather front would likely be responsible for the following weather
forecast? "Increasing high cloudiness and cold this morning. Clouds increasing and
lowering this afternoon with a chance of snow or rain tonight. Precipitation ending
tomorrow morning. Turning much warmer. Winds light easterly today becoming
southeasterly tonight and southwesterly tomorrow." - Answer-warm front
, What type of weather front would likely be responsible for the following weather
forecast? "Light rain and cold today with temperatures just above freezing.
Southeasterly winds shifting to westerly tonight. Turning colder with rain becoming
mixed with snow, then changing to snow." - Answer-dryline
Lake-effect snows are snowstorms that form on the ____ side of a large lake. - Answer-
downwind
Along a dryline, the ____ may drop markedly. - Answer-dew point temperatures
What type of front will most likely pass the area when the weather forecaster states
"Light rain and cold today, with temperatures just above freezing. Southeasterly winds
shifting to westerly tonight. Turning colder with rain becoming heavy and possibly
changing to snow"? - Answer-dryline
During the spring, on a warm, sunny day in Boston, Massachusetts, the wind shifts from
southwesterly to northeasterly and the weather turns cold, damp, and overcast. This
suggests that a "back door" cold front approached Boston from the - Answer-northeast
You are in upstate New York and observe the wind shift from easterly to southerly. This
shift in wind is accompanied by a sudden rise in both the air temperature and dew-point
temperature. This means a(n) ____ front passed. - Answer-warm
Air masses are usually classified according to their ____ and ____. - Answer-
temperature; humidity
1. The Hadley cell is referred to as a thermally direct cell because it is driven by _____
as warm air rises and cold air sinks. - Answer-energy from the sun
2. The region over equatorial waters where the air is warm, horizontal pressure
gradients are weak, and winds are light, is known as the _____. - Answer-doldrums
3. Between latitudes 40° and 65°, there are two semipermanent subpolar lows in the
North Atlantic: the _____ lows. - Answer-Greenland-Icelandic and Aleutian
4. the West Coast, the rainy season typically occurs in winter when the Pacific high ___
and the polar front and storms are able to penetrate the region. - Answer-moves south
5. As air density decreases with height, the same pressure gradient at lower altitudes
will produce _____ winds at higher levels. - Answer-stronger
6. The jet stream situated near 30° latitude at about 13 km (43,000 ft) is called the
_____ jet stream. - Answer-subtropical
7. The ultimate cause of jet streams is _____. - Answer-the energy imbalance that
exists between high and low latitudes
