Question 1

Tropical cyclones produce the most intense low- pressure systems on earth. To develop and maintain this low pressure, what must happen aloft in this type of storm?

Accepted Answer

A)   The storm must push the tropopause far into the stratosphere to maintain the low pressure.
B)   Rain must fall to force thunderstorms to collapse to keep the air circulation going.
C)   A strong divergent flow outflow. aloft must keep up with, or exceed, the inflow near the surface.
D)   A strong jet stream flow must be present to maintain the inward flow.E) All of the above
F) A) and B)

Question 2

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

Accepted Answer

A)   jet stream
B)   friction
C)   Coriolis effect
D)   pressure gradient forceE) B) and D)
F) B) and C)

Question 3

A land breeze usually originates during the _____  .

Accepted Answer

A)   evening and flows toward the land
B)   evening and flows toward the water
C)   day and flows toward the land
D)   day and flows toward the waterE) B) and C)
F) A) and B)

Question 4

In the Southern Hemisphere, the winds associated with a low pressure system blow _____ .

Accepted Answer

A)   counterclockwise and outward from the center
B)   clockwise and toward the center
C)   counterclockwise and toward the center
D)   clockwise and outward from the centerE) All of the above
F) B) and C)

Question 5

Tropical cyclones aka hurricanes in the Atlantic. are intense low- pressure systems characterized by heavy rain and high winds. When a tropical cyclone passes an area, however, there are generally several days of clear, dry weather. Why might this occur?

Accepted Answer

A)   The cyclone has sucked up all the moist air around it, leaving dry air behind.
B)   The spiral arms of the hurricane are storm fronts, and each carries descending air behind it.
C)   The hurricane carries a cold front with it, which carries dry air.
D)   The cyclone must have an outflow aloft, which feeds descending air surrounding the storm.E) None of the above
F) B) and C)

Question 6

An altimeter is an adaptation of the_____  .

Accepted Answer

A)   barograph
B)   aneroid barometer
C)   mercurial barometer
D)   anemometerE) A) and D)
F) A) and C)

Question 7

Fast moving currents of air found near the top of the troposphere are called_____  .

Accepted Answer

A)   convergences
B)   trade winds
C)   jet streams
D)   Santa Ana windsE) A) and B)
F) All of the above

Question 8

Closely spaced isobars indicate _____ wind speeds.

Accepted Answer

A)   no
B)   medium
C)   high
D)   lowE) A) and D)
F) B) and D)

Question 9

"Perhaps more than any other single measurement, atmospheric pressure is the best indicator of current and changing weather conditions." Briefly discuss why this statement is correct.

Accepted Answer

Pressure change is easy to und...

Question 10

An instrument that measures wind speed is called an_____  .

Accepted Answer

A)   sling pyschrometer
B)   anemometer
C)   mercurial barometer
D)   wind vaneE) A) and B)
F) A) and C)

Question 11

A_____  breeze originates over land because the pressure on land is at night over land than over the water.

Accepted Answer

A)   land; lower
B)   sea; lower
C)   land; higher
D)   sea; higherE) All of the above
F) A) and B)

Question 12

When winds blow parallel to the isobars, which is usually the case for winds aloft, they are called _____ winds.

Accepted Answer

A)   isobar
B)   Coriolis
C)   pressure gradient
D)   geostrophicE) A) and C)
F) B) and C)

Question 13

Standard sea level air pressure is_____  inches of mercury.

Accepted Answer

A)   28.38
B)   29.01
C)   29.92
D)   29.15E) C) and D)
F) None of the above

Question 14

A weather system is moving from west to east. You look at a weather map and see that you are in an area of closely spaced isobars with the center just to your east, but the spacing of the isobars increases to the west of you. What would you forecast for wind conditions?

Accepted Answer

A)   Winds will increase.
B)   Winds will decrease.
C)   Winds will stay the same.
D)   Winds will increase then decrease.E) None of the above
F) A) and C)

Question 15

The Amargosa Valley in eastern California desert often experiences a cold evening wind that blows downvalley. Which of the following might explain this phenomenon?

Accepted Answer

A)   Moist Pacific air rising over the Sierra Nevada Mountains produces mountain precipitation, and as this air spills off the eastern escarpment, it forms the valley wind.
B)   Night time cooling upvalley produces a cold, unstable air mass that is funneled down the valley to produce a valley wind.
C)   It is a nighttime land breeze and there should be an accompanying daytime seabreeze up valley.
D)   Daytime heating causes a local low pressure that causes air to rush in by evening.E) C) and D)
F) B) and C)

Question 16

Warm winds that move down the leeward side of mountains are known as _ _.

Accepted Answer

A)   chinook
B)   land breeze
C)   valley
D)   oscillationE) A) and B)
F) All of the above

Question 17

A surface low pressure system will not strengthen unless there is _____ pressure aloft.

Accepted Answer

A)   low
B)   high
C)   no
D)   mediumE) A) and D)
F) A) and B)

Question 18

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

Accepted Answer

A)   trade winds
B)   polar easterlies
C)   westerlies
D)   ChinookE) A) and B)
F) C) and D)

Question 19

Consider the below image:  What would you expect to happen in terms of air flows wind.?

Accepted Answer

A)   They will flow towards the L horizontally.
B)   They will spin downward and dissipate.
C)   They will flow vertically upward from the L.
D)   They will flow away from the L horizontally.E) B) and D)
F) B) and C)

Question 20

The surface wind zones that flow from the subtropics toward the equator are called the _____ winds.

Accepted Answer

A)   trade
B)   westerly
C)   anemometer
D)   subvortexE) B) and C)
F) None of the above

Exam 18: Air Pressure and Wind

Consider the below image: What would you expect to happen in terms of air flows wind.?

Correct AnswerverifiedShow Answer

In the Southern Hemisphere, the winds associated with a low pressure system blow _____ .

Correct AnswerverifiedShow Answer

Closely spaced isobars indicate _____ wind speeds.

Correct AnswerverifiedShow Answer

An altimeter is an adaptation of the_____ .

Correct AnswerverifiedShow Answer

The surface wind zones that flow from the subtropics toward the equator are called the _____ winds.

Correct AnswerverifiedShow Answer

A surface low pressure system will not strengthen unless there is _____ pressure aloft.

Correct AnswerverifiedShow Answer

Warm winds that move down the leeward side of mountains are known as _ _.

Correct AnswerverifiedShow Answer

An instrument that measures wind speed is called an_____ .

Correct AnswerverifiedShow Answer

The Amargosa Valley in eastern California desert often experiences a cold evening wind that blows downvalley. Which of the following might explain this phenomenon?

Correct AnswerverifiedShow Answer

Fast moving currents of air found near the top of the troposphere are called_____ .

Correct AnswerverifiedShow Answer

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

Correct AnswerverifiedShow Answer

Tropical cyclones produce the most intense low- pressure systems on earth. To develop and maintain this low pressure, what must happen aloft in this type of storm?

Correct AnswerverifiedShow Answer

"Perhaps more than any other single measurement, atmospheric pressure is the best indicator of current and changing weather conditions." Briefly discuss why this statement is correct.

Correct AnswerverifiedPressure change is easy to und...View AnswerShow Answer

Tropical cyclones aka hurricanes in the Atlantic. are intense low- pressure systems characterized by heavy rain and high winds. When a tropical cyclone passes an area, however, there are generally several days of clear, dry weather. Why might this occur?

Correct AnswerverifiedShow Answer

A land breeze usually originates during the _____ .

Correct AnswerverifiedShow Answer

A weather system is moving from west to east. You look at a weather map and see that you are in an area of closely spaced isobars with the center just to your east, but the spacing of the isobars increases to the west of you. What would you forecast for wind conditions?

Correct AnswerverifiedShow Answer

A_____ breeze originates over land because the pressure on land is at night over land than over the water.

Correct AnswerverifiedShow Answer

When winds blow parallel to the isobars, which is usually the case for winds aloft, they are called _____ winds.

Correct AnswerverifiedShow Answer

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

Correct AnswerverifiedShow Answer

Standard sea level air pressure is_____ inches of mercury.

Correct AnswerverifiedShow Answer

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Pressure change is easy to und...
View Answer

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