Question 1

List the four basic types of air masses. Give an example of where each type could originate, and describe how each air mass could affect local weather conditions if it moved into your region.

Accepted Answer

The four basic types of air masses are m...

Question 2

-Which of the following types of air masses form over North America in summer only?

Accepted Answer

A)  mP
B)  cP
C)  mT
D)  cTE) C) and D)
F) B) and C)

Question 3

Is it possible for a stationary front to produce precipitation? If so, does precipitation occur on the warm or the cold air side of the front?

Accepted Answer

Yes, it is possible for a stationary fro...

Question 4

The greatest lake-effect snowfall will generally occur on which of the following shores of the Great Lakes?

Accepted Answer

A)  eastern
B)  northern
C)  southern
D)  westernE) A) and D)
F) A) and C)

Question 5

The greatest contrast in both temperature and moisture occurs along the boundary between which of the following air masses?

Accepted Answer

A)  mT and cP
B)  cP and cT
C)  mP and cT
D)  mP and mTE) B) and D)
F) All of the above

Question 6

Refer to the above surface weather map.
-Between which of the following points is an occluded front positioned?

Accepted Answer

A)  between 3 and 4
B)  between 2 and 3
C)  between 2 and 5
D)  between 1 and 2E) All of the above
F) B) and C)

Question 7

Which of the following statements describes a cold front?

Accepted Answer

A)  It marks the position of a trough of high pressure.
B)  It has warm air behind it.
C)  It marks a zone of shifting winds.
D)  It is coloured purple on a weather map.E) A) and B)
F) A) and C)

Question 8

Without considering changes in temperature, how are the weather conditions accompanying a cold frontal passage different from those associated with the passage of a warm front?

Accepted Answer

The weather conditions accompanying a co...

Question 9

Which of the following statements explains why a stationary front does not move?

Accepted Answer

A)  The winds blow parallel to the front.
B)  The front is between high and low pressure.
C)  The winds blow against each other and are of equal strength.
D)  The winds on both sides of the front are calm.E) All of the above
F) B) and C)

Question 10

Which of the following types of air masses most likely occurs during the winter when an air mass moves into coastal sections of British Columbia from the northwest?

Accepted Answer

A)  cP
B)  mA
C)  cT
D)  mTE) None of the above
F) A) and C)

Question 11

Thunderstorms most likely form along which of the following weather fronts in winter?

Accepted Answer

A)  occluded fronts
B)  cold fronts
C)  stationary fronts
D)  warm frontsE) A) and B)
F) A) and C)

Question 12

Which of the following applies to an occluded front?

Accepted Answer

A)  It marks a zone of shifting wind.
B)  At the surface, it is always followed by warmer air.
C)  It is coloured blue on a surface weather map.
D)  It is often associated with a narrow band of precipitation.E) A) and C)
F) A) and B)

Question 13

Squall lines most often form ahead of which of the following types of weather fronts?

Accepted Answer

A)  cold-type occluded front
B)  warm-type occluded front
C)  cold front
D)  warm frontE) None of the above
F) All of the above

Question 14

In which of the following conditions is a frontal inversion likely best observed?

Accepted Answer

A)  with a warm front in winter
B)  with a warm front in summer
C)  with a cold front is summer
D)  with a stationary front in winterE) B) and C)
F) C) and D)

Question 15

Which of the following is considered a good source region for a continental air mass?

Accepted Answer

A)  British Columbia
B)  Canadian Prairies
C)  Lake Huron
D)  Gulf of St.LawrenceE) A) and B)
F) A) and C)

Question 16

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​
Refer to the above surface weather map.
-At which of the following positions is the warm sector located?

Accepted Answer

A)  1
B)  2
C)  3
D)  4E) A) and D)
F) A) and C)

Question 17

Which of the following characterizes stationary fronts?

Accepted Answer

A)  They are often associated with cloud cover.
B)  They occur within a single air mass.
C)  They occur when two cold fronts meet.
D)  They move at the same speed as cold fronts.E) A) and C)
F) C) and D)

Question 18

Along with a rapid change in dew point temperature, which of the following defines a dryline?

Accepted Answer

A)  a strong horizontal change in atmospheric moisture
B)  a stalled cold front
C)  a stalled warm front
D)  a weak horizontal change in atmospheric moistureE) B) and D)
F) B) and C)

Question 19

Which of the following properties characterize an air mass in any horizontal direction?

Accepted Answer

A)  temperature and moisture
B)  winds and moisture
C)  pressure and moisture
D)  temperature and pressureE) A) and B)
F) None of the above

Question 20

Which of the following types of air masses is mainly responsible for persistent cold, damp weather with drizzle along the east coast of North America?

Accepted Answer

A)  mP
B)  mT
C)  cT
D)  cPE) B) and C)
F) A) and C)

Exam 11: Air Masses and Fronts

In which of the following conditions is a frontal inversion likely best observed?

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Which of the following is considered a good source region for a continental air mass?

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Which of the following properties characterize an air mass in any horizontal direction?

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-Which of the following types of air masses form over North America in summer only?

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Along with a rapid change in dew point temperature, which of the following defines a dryline?

Correct AnswerverifiedShow Answer

Thunderstorms most likely form along which of the following weather fronts in winter?

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Which of the following types of air masses most likely occurs during the winter when an air mass moves into coastal sections of British Columbia from the northwest?

Correct AnswerverifiedShow Answer

Which of the following types of air masses is mainly responsible for persistent cold, damp weather with drizzle along the east coast of North America?

Correct AnswerverifiedShow Answer

Without considering changes in temperature, how are the weather conditions accompanying a cold frontal passage different from those associated with the passage of a warm front?

Correct AnswerAnswered by ExamLex AIThe weather conditions accompanying a co...View AnswerShow Answer

​ ​ Refer to the above surface weather map. -At which of the following positions is the warm sector located?

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Which of the following statements describes a cold front?

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The greatest lake-effect snowfall will generally occur on which of the following shores of the Great Lakes?

Correct AnswerverifiedShow Answer

Is it possible for a stationary front to produce precipitation? If so, does precipitation occur on the warm or the cold air side of the front?

Correct AnswerAnswered by ExamLex AIYes, it is possible for a stationary fro...View AnswerShow Answer

Refer to the above surface weather map. -Between which of the following points is an occluded front positioned?

Correct AnswerverifiedShow Answer

List the four basic types of air masses. Give an example of where each type could originate, and describe how each air mass could affect local weather conditions if it moved into your region.

Correct AnswerAnswered by ExamLex AIThe four basic types of air masses are m...View AnswerShow Answer

Which of the following applies to an occluded front?

Correct AnswerverifiedShow Answer

Which of the following statements explains why a stationary front does not move?

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Squall lines most often form ahead of which of the following types of weather fronts?

Correct AnswerverifiedShow Answer

Which of the following characterizes stationary fronts?

Correct AnswerverifiedShow Answer

The greatest contrast in both temperature and moisture occurs along the boundary between which of the following air masses?

Correct AnswerverifiedShow Answer

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Answered by ExamLex AI
The weather conditions accompanying a co...
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Refer to the above surface weather map. -At which of the following positions is the warm sector located?

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Answered by ExamLex AI
Yes, it is possible for a stationary fro...
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Answered by ExamLex AI
The four basic types of air masses are m...
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