Question 1

An increase in the environmental lapse rate of an air layer results in the layer becoming:

Accepted Answer

A)  an air parcel. 
B)  less stable. 
C)  more stable. 
D)  cooler. 
E)  heavier. 
A)  an air parcel. 
B)  less stable. 
C)  more stable. 
D)  cooler. 
E)  heavier.

Question 2

During a clear, relatively calm day, the relative humidity will tend to ________from sunrise to early afternoon.

Accepted Answer

A)  increase 
B)  decrease 
C)  remain nearly steady 
A)  increase 
B)  decrease 
C)  remain nearly steady

Question 3

An adiabatic process is one in which the:

Accepted Answer

A)  altitude of the air parcel remains constant. 
B)  pressure on the air parcel remains constant. 
C)  work done is zero. 
D)  temperature remains constant. 
E)  heat exchanged with the surroundings is zero. 
A)  altitude of the air parcel remains constant. 
B)  pressure on the air parcel remains constant. 
C)  work done is zero. 
D)  temperature remains constant. 
E)  heat exchanged with the surroundings is zero.

Question 4

A cold air mass that is warmed at its base from contact with the warm ground will have its lapse rate:

Accepted Answer

A)  compressed. 
B)  changed to an inversion. 
C)  remain constant. 
D)  decreased. 
E)  increased. 
A)  compressed. 
B)  changed to an inversion. 
C)  remain constant. 
D)  decreased. 
E)  increased.

Question 5

If the relative humidity is 100 percent and the environmental lapse rate is 8 degrees C per kilometer, then the air is conditionally unstable.

Accepted Answer

A) True 
 B)False

Question 6

For the following questions, refer to the diagram shown below.
  
-Given the conditions shown in the diagram above, the elevation of the cloud base would be:

Accepted Answer

A)  2000 m. 
B)  2500 m. 
C)  111000 m. 
D)  3000 m. 
A)  2000 m. 
B)  2500 m. 
C)  111000 m. 
D)  3000 m.

Question 7

Which type of lifting mechanism results from warm air lifting over cold air?

Accepted Answer

A)  orographic lifting 
B)  frontal wedging 
C)  convective lifting 
D)  convergence 
A)  orographic lifting 
B)  frontal wedging 
C)  convective lifting 
D)  convergence

Question 8

If your environmental lapse rate is 7 C/km on a partly cloudy afternoon, then the atmosphere is said to be:

Accepted Answer

A)  conditionally unstable. 
B)  absolutely stable. 
C)  absolutely unstable. 
A)  conditionally unstable. 
B)  absolutely stable. 
C)  absolutely unstable.

Question 9

Relative humidity gives a measurement of the amount of water in the air, and is usually measured in grams per cubic meter.

Accepted Answer

A) True 
 B)False

Question 10

The instrument consisting of a wet bulb thermometer and a dry bulb thermometer is termed a _________.

Accepted Answer

The answer of The instrument consisting of a wet bulb...

Question 11

For the following questions, refer to the diagram shown below.
  
-In the diagram shown above, the temperature and dew point at the peak (4000 m) would be: (Assume 100% relative humidity and a wet adiabatic lapse rate of 5°C/km.)

Accepted Answer

A)  both equal to - 5°C. 
B)  equal to - 5°C and - 10°C, respectively. 
C)  both equal to - 15°C. 
D)  equal to - 15°C and - 5°C, respectively. 
A)  both equal to - 5°C. 
B)  equal to - 5°C and - 10°C, respectively. 
C)  both equal to - 15°C. 
D)  equal to - 15°C and - 5°C, respectively.

Question 12

Clear skies are associated with subsidence or sinking motion.

Accepted Answer

A) True 
 B)False

Question 13

List two atmospheric phenomena in air near the surface that are likely when the air is very stable.

Accepted Answer

fog, haze, clear ski

Question 14

Thermals are created by the lifting mechanism known as ____________.

Accepted Answer

localized

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

A wet- bulb thermometer and a dry- bulb thermometer are both parts of which meteorological instrument?

Accepted Answer

A)  a sling psychrometer 
B)  a barometer 
C)  an anemometer 
D)  a thermistor 
A)  a sling psychrometer 
B)  a barometer 
C)  an anemometer 
D)  a thermistor

Question 17

The wet adiabatic lapse rate is greater than the dry adiabatic lapse rate.

Accepted Answer

A) True 
 B)False

Question 18

The environmental lapse rate is usually the same as the dry adiabatic rate.

Accepted Answer

A) True 
 B)False

Question 19

The amount of water vapor in the air (by volume) usually does not exceed:

Accepted Answer

A)  100 percent. 
B)  40 percent. 
C)  4 percent. 
D)  14 percent. 
E)  28 percent. 
A)  100 percent. 
B)  40 percent. 
C)  4 percent. 
D)  14 percent. 
E)  28 percent.

Question 20

Why does a rising air parcel cool off?

Accepted Answer

A)  It is unstable. 
B)  It expands. 
C)  It loses heat to its surroundings. 
D)  It loses energy by radiation. 
E)  Its relative humidity is less than 100 percent. 
A)  It is unstable. 
B)  It expands. 
C)  It loses heat to its surroundings. 
D)  It loses energy by radiation. 
E)  Its relative humidity is less than 100 percent.

An increase in the environmental lapse rate of an air layer results in the layer becoming:

During a clear, relatively calm day, the relative humidity will tend to ________from sunrise to early afternoon.

An adiabatic process is one in which the:

A cold air mass that is warmed at its base from contact with the warm ground will have its lapse rate:

If the relative humidity is 100 percent and the environmental lapse rate is 8 degrees C per kilometer, then the air is conditionally unstable.

For the following questions, refer to the diagram shown below. -Given the conditions shown in the diagram above, the elevation of the cloud base would be:

Which type of lifting mechanism results from warm air lifting over cold air?

If your environmental lapse rate is 7 C/km on a partly cloudy afternoon, then the atmosphere is said to be:

Relative humidity gives a measurement of the amount of water in the air, and is usually measured in grams per cubic meter.

The instrument consisting of a wet bulb thermometer and a dry bulb thermometer is termed a _________.

For the following questions, refer to the diagram shown below. -In the diagram shown above, the temperature and dew point at the peak (4000 m) would be: (Assume 100% relative humidity and a wet adiabatic lapse rate of 5°C/km.)

Clear skies are associated with subsidence or sinking motion.

List two atmospheric phenomena in air near the surface that are likely when the air is very stable.

Thermals are created by the lifting mechanism known as ____________.

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

A wet- bulb thermometer and a dry- bulb thermometer are both parts of which meteorological instrument?

The wet adiabatic lapse rate is greater than the dry adiabatic lapse rate.

The environmental lapse rate is usually the same as the dry adiabatic rate.

The amount of water vapor in the air (by volume) usually does not exceed:

Why does a rising air parcel cool off?

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

An increase in the environmental lapse rate of an air layer results in the layer becoming:

During a clear, relatively calm day, the relative humidity will tend to ________from sunrise to early afternoon.

An adiabatic process is one in which the:

A cold air mass that is warmed at its base from contact with the warm ground will have its lapse rate:

If the relative humidity is 100 percent and the environmental lapse rate is 8 degrees C per kilometer, then the air is conditionally unstable.

For the following questions, refer to the diagram shown below. -Given the conditions shown in the diagram above, the elevation of the cloud base would be:

Which type of lifting mechanism results from warm air lifting over cold air?

If your environmental lapse rate is 7 C/km on a partly cloudy afternoon, then the atmosphere is said to be:

Relative humidity gives a measurement of the amount of water in the air, and is usually measured in grams per cubic meter.

The instrument consisting of a wet bulb thermometer and a dry bulb thermometer is termed a _________.

For the following questions, refer to the diagram shown below. -In the diagram shown above, the temperature and dew point at the peak (4000 m) would be: (Assume 100% relative humidity and a wet adiabatic lapse rate of 5°C/km.)

Clear skies are associated with subsidence or sinking motion.

List two atmospheric phenomena in air near the surface that are likely when the air is very stable.

Thermals are created by the lifting mechanism known as ____________.

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

A wet- bulb thermometer and a dry- bulb thermometer are both parts of which meteorological instrument?

The wet adiabatic lapse rate is greater than the dry adiabatic lapse rate.

The environmental lapse rate is usually the same as the dry adiabatic rate.

The amount of water vapor in the air (by volume) usually does not exceed:

Why does a rising air parcel cool off?

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