Question 1

It takes 1 calorie to raise 1 gram of water 1°C.

Accepted Answer

A) True 
 B)False

Question 2

To make a decision about the stability of the air, what is the most important information that you need to know beyond the temperature and dew point of the rising parcel?

Accepted Answer

the value

Question 3

-Refer to the diagram of a simple parcel above. What additional information would you need in order to be able to calculate the relative humidity of this parcel?

Accepted Answer

A)  current vapor pressure inside the parcel 
B)  temperature outside of the parcel 
C)  air pressure inside the parcel 
D)  current temperature/capacity to hold water vapor inside the parcel 
A)  current vapor pressure inside the parcel 
B)  temperature outside of the parcel 
C)  air pressure inside the parcel 
D)  current temperature/capacity to hold water vapor inside the parcel

Question 4

Why is the wet adiabatic rate of cooling less that the dry adiabatic rate?

Accepted Answer

During a wet adiabatic process

Question 5

Refer to the diagram of a simple parcel above. What is the absolute humidity of this parcel?

Accepted Answer

A)  2 g/m3  
B)  0.2 g/kg 
C)  10 g/m3  
D)  5 g/kg 
A)  2 g/m3  
B)  0.2 g/kg 
C)  10 g/m3  
D)  5 g/kg

Question 6

Evaporation is a cooling process.

Accepted Answer

A) True 
 B)False

Question 7

The air in Great Falls, Montana has a temperature of 5°C and a relative humidity of 50%. On the same afternoon, the air in Palm Springs, California has a temperature of 25°C and a relative humidity of 50%. What can be said about the amount of vapor in the air at these two cities?

Accepted Answer

A)  Great Falls and Palm Springs will have the same vapor content. 
B)  Palm Springs will have a higher vapor content than Great Falls. 
C)  Great Falls will have a higher vapor content than Palm Springs. 
A)  Great Falls and Palm Springs will have the same vapor content. 
B)  Palm Springs will have a higher vapor content than Great Falls. 
C)  Great Falls will have a higher vapor content than Palm Springs.

Question 8

If the mixing ratio remains unchanged and the temperature drops, the relative humidity will increase.

Accepted Answer

A) True 
 B)False

Question 9

Saturation is best defined as:

Accepted Answer

A)  a vapor pressure greater than 1000 mb. 
B)  a mixing ratio of at least 100 g/kg. 
C)  equal numbers of water molecules evaporating from and condensing into a water surface. 
D)  the point when water molecules completely stop evaporating from a water surface. 
A)  a vapor pressure greater than 1000 mb. 
B)  a mixing ratio of at least 100 g/kg. 
C)  equal numbers of water molecules evaporating from and condensing into a water surface. 
D)  the point when water molecules completely stop evaporating from a water surface.

Question 10

Once precipitation has fallen on land, it may take one of three paths. List these three possible routes.

Accepted Answer

runoff, in

Question 11

A stable atmosphere is one in which:

Accepted Answer

A)  upward vertical motions are resisted. 
B)  temperatures are adiabatic. 
C)  rising bubbles of air accelerate upward. 
D)  clouds are forming. 
A)  upward vertical motions are resisted. 
B)  temperatures are adiabatic. 
C)  rising bubbles of air accelerate upward. 
D)  clouds are forming.

Question 12

When the lapse rate is 7 degrees per kilometer, the atmosphere is absolutely unstable.

Accepted Answer

A) True 
 B)False

Question 13

-Refer to the diagram of a simple parcel above. What is the mixing ratio of this parcel?

Accepted Answer

A)  2 g/m3  
B)  10 g/m3  
C)  0.2 g/kg 
D)  5 g/kg 
A)  2 g/m3  
B)  10 g/m3  
C)  0.2 g/kg 
D)  5 g/kg

Question 14

Adiabatic temperature changes refer to parcels of air that rise or sink.

Accepted Answer

A) True 
 B)False

Question 15

The heat released when water vapor condenses to form a cloud or when liquid droplets freeze in a cloud:

Accepted Answer

A)  adds water to the cloud. 
B)  makes the air heavier. 
C)  helps the cloud to rise higher. 
D)  evaporates more water. 
E)  cools off the cloud. 
A)  adds water to the cloud. 
B)  makes the air heavier. 
C)  helps the cloud to rise higher. 
D)  evaporates more water. 
E)  cools off the cloud.

Question 16

Plants release water to the atmosphere through the process of sublimation.

Accepted Answer

A) True 
 B)False

Question 17

The saturation vapor pressure is independent of temperature.

Accepted Answer

A) True 
 B)False

Question 18

When air sinks, it is compressed and warmed.

Accepted Answer

A) True 
 B)False

Question 19

Relative humidity is "relative" to pressure.

Accepted Answer

A) True 
 B)False

Question 20

Why does the wet bulb thermometer of a psychrometer read less than the dry bulb?

Accepted Answer

Water is evaporating from the

It takes 1 calorie to raise 1 gram of water 1°C.

To make a decision about the stability of the air, what is the most important information that you need to know beyond the temperature and dew point of the rising parcel?

-Refer to the diagram of a simple parcel above. What additional information would you need in order to be able to calculate the relative humidity of this parcel?

Why is the wet adiabatic rate of cooling less that the dry adiabatic rate?

Refer to the diagram of a simple parcel above. What is the absolute humidity of this parcel?

Evaporation is a cooling process.

The air in Great Falls, Montana has a temperature of 5°C and a relative humidity of 50%. On the same afternoon, the air in Palm Springs, California has a temperature of 25°C and a relative humidity of 50%. What can be said about the amount of vapor in the air at these two cities?

If the mixing ratio remains unchanged and the temperature drops, the relative humidity will increase.

Saturation is best defined as:

Once precipitation has fallen on land, it may take one of three paths. List these three possible routes.

A stable atmosphere is one in which:

When the lapse rate is 7 degrees per kilometer, the atmosphere is absolutely unstable.

-Refer to the diagram of a simple parcel above. What is the mixing ratio of this parcel?

Adiabatic temperature changes refer to parcels of air that rise or sink.

The heat released when water vapor condenses to form a cloud or when liquid droplets freeze in a cloud:

Plants release water to the atmosphere through the process of sublimation.

The saturation vapor pressure is independent of temperature.

When air sinks, it is compressed and warmed.

Relative humidity is "relative" to pressure.

Why does the wet bulb thermometer of a psychrometer read less than the dry bulb?

Introduction to the Atmosphere

Heating Earths Surface and Atmosphere

Temperature

Forms of Condensation and Precipitation

Air Pressure and Winds

Circulation of the Atmosphere

Air Masses

Weather Patterns

Thunderstorms and Tornadoes

Hurricanes

Weather Analysis and Forecasting

Air Pollution

The Changing Climate

World Climates

Optical Phenomena of the Atmosphere

Filters

Exam 4: Moisture and Atmospheric Stability

It takes 1 calorie to raise 1 gram of water 1°C.

To make a decision about the stability of the air, what is the most important information that you need to know beyond the temperature and dew point of the rising parcel?

-Refer to the diagram of a simple parcel above. What additional information would you need in order to be able to calculate the relative humidity of this parcel?

Why is the wet adiabatic rate of cooling less that the dry adiabatic rate?

Refer to the diagram of a simple parcel above. What is the absolute humidity of this parcel?

Evaporation is a cooling process.

The air in Great Falls, Montana has a temperature of 5°C and a relative humidity of 50%. On the same afternoon, the air in Palm Springs, California has a temperature of 25°C and a relative humidity of 50%. What can be said about the amount of vapor in the air at these two cities?

If the mixing ratio remains unchanged and the temperature drops, the relative humidity will increase.

Saturation is best defined as:

Once precipitation has fallen on land, it may take one of three paths. List these three possible routes.

A stable atmosphere is one in which:

When the lapse rate is 7 degrees per kilometer, the atmosphere is absolutely unstable.

-Refer to the diagram of a simple parcel above. What is the mixing ratio of this parcel?

Adiabatic temperature changes refer to parcels of air that rise or sink.

The heat released when water vapor condenses to form a cloud or when liquid droplets freeze in a cloud:

Plants release water to the atmosphere through the process of sublimation.

The saturation vapor pressure is independent of temperature.

When air sinks, it is compressed and warmed.

Relative humidity is "relative" to pressure.

Why does the wet bulb thermometer of a psychrometer read less than the dry bulb?

Introduction to the Atmosphere

Heating Earths Surface and Atmosphere

Temperature

Forms of Condensation and Precipitation

Air Pressure and Winds

Circulation of the Atmosphere

Air Masses

Weather Patterns

Thunderstorms and Tornadoes

Hurricanes

Weather Analysis and Forecasting

Air Pollution

The Changing Climate

World Climates

Optical Phenomena of the Atmosphere

Filters