Question 1

List and describe the ways relative humidity changes in nature. Compare relative humidity to dew- point temperature.

Accepted Answer

Relative humidity is the ratio of how mu...

Question 2

For a given mass of rising air, the dry adiabatic rate will always be higher than the wet adiabatic rate.

Accepted Answer

A) True 
 B)False

Question 3

List and describe the four mechanisms that cause air to rise.

Accepted Answer

Essay response should include convective...

Question 4

A convergence of winds near the surface is associated with cloud production because it:

Accepted Answer

A)   increases the wind speed.
B)   increases the lapse rate.
C)   forces the air to rise.
D)   increases the dew point.
E)   creates a vortex or spiral pattern.F) A) and D)
G) A) and C)

Question 5

Describe the movement of water through the hydrologic cycle.

Accepted Answer

Water evaporates from the oceans and lan...

Question 6

What is necessary in order for clouds to form when the atmosphere is absolutely stable?

Accepted Answer

A)   an environmental lapse rate less than 5°C
B)   a lifting mechanism other than convection (such as a front) 
C)   a high degree of subsidence
D)   cooling of the air mass from belowE) None of the above
F) B) and D) B

Question 7

The moist adiabatic rate is different from the dry adiabatic rate because:

Accepted Answer

A)   saturated air is always unstable.
B)   a parcel of saturated air weighs less than a parcel of unsaturated air.
C)   latent heat is released inside a parcel of rising saturated air.
D)   unsaturated air is always stable.
E)   an unstable air parcel expands more rapidly.F) B) and E)
G) B) and D)

Question 8

Frost that forms on cold glass is created by the process of:

Accepted Answer

A)   transpiration.
B)   sublimation.
C)   freezing.
D)   deposition.E) A) and B)
F) All of the above

Question 9

An air parcel rises over a mountain and cools adiabatically. Which lifting mechanism has acted on this parcel?

Accepted Answer

A)   convective lifting
B)   convergence
C)   frontal wedging
D)   orographic liftingE) C) and D)
F) None of the above

Question 10

The stability of an air layer refers to its:

Accepted Answer

A)   albedo.
B)   overall density.
C)   pressure as measured at its base.
D)   tendency to either sustain or suppress upward vertical motions.E) A) and D)
F) A) and B) D

Question 11

The two changes of state that are the most important part of the water cycle for the atmosphere would be:

Accepted Answer

A)   condensation, freezing.
B)   melting, freezing.
C)   melting, sublimation.
D)   evaporation, condensation.
E)   condensation, melting.F) D) and E)
G) A) and B)

Question 12

The average annual precipitation for the earth is equal to the annual amount of evaporated water.

Accepted Answer

A) True 
 B)False

Question 13

The atmosphere is most unstable when the temperature of the air ______ with height.

Accepted Answer

A)   decreases slightly
B)   drops rapidly
C)   is uniform
D)   increases rapidly
E)   increases slightlyF) B) and C)
G) A) and E)

Question 14

In your own words, describe the process that causes a cold glass of ice water to 'sweat.' Include a discussion of the flow of energy through this system, and use appropriate vocabulary.

Accepted Answer

Heat will always flow from where there i...

Question 15

A__________ is an instrument used to measure humidity.

Accepted Answer

A)   aquimeter.
B)   hydrometer.
C)   hygrometer.
D)   humidimeter.E) B) and D)
F) C) and D)

Question 16

The capacity of air to hold water vapor is temperature dependent.

Accepted Answer

A) True 
 B)False

Question 17

Thunderstorms are most likely to occur when the atmosphere is absolutely unstable.

Accepted Answer

A) True 
 B)False

Question 18

When discussing the water vapor in the air, meteorologists prefer to use absolute humidity rather than mixing ratio.

Accepted Answer

A) True 
 B)False

Question 19

Relative humidity indicates the:

Accepted Answer

A)   actual amount of water in the air.
B)   chance of cloud formation.
C)   nearness to saturation for the air.
D)   chance for evaporation of water.
E)   probability of precipitation.F) C) and D)
G) A) and B)

Question 20

Adiabatic processes are only important for air:

Accepted Answer

A)   that is saturated.
B)   masses which remain near the earth's surface.
C)   that is polluted.
D)   which is rising or sinking.
E)   that is stagnant.F) C) and D)
G) A) and E) D

Exam 4: Moisture and Atmospheric Stability

List and describe the ways relative humidity changes in nature. Compare relative humidity to dew- point temperature.

Correct AnswerverifiedRelative humidity is the ratio of how mu...View AnswerShow Answer

For a given mass of rising air, the dry adiabatic rate will always be higher than the wet adiabatic rate.

Correct AnswerverifiedShow Answer

List and describe the four mechanisms that cause air to rise.

Correct AnswerverifiedEssay response should include convective...View AnswerShow Answer

A convergence of winds near the surface is associated with cloud production because it:

Correct AnswerverifiedShow Answer

Describe the movement of water through the hydrologic cycle.

Correct AnswerverifiedWater evaporates from the oceans and lan...View AnswerShow Answer

What is necessary in order for clouds to form when the atmosphere is absolutely stable?

Correct AnswerverifiedB

The moist adiabatic rate is different from the dry adiabatic rate because:

Correct AnswerverifiedShow Answer

Frost that forms on cold glass is created by the process of:

Correct AnswerverifiedShow Answer

An air parcel rises over a mountain and cools adiabatically. Which lifting mechanism has acted on this parcel?

Correct AnswerverifiedShow Answer

The stability of an air layer refers to its:

Correct AnswerverifiedD

The two changes of state that are the most important part of the water cycle for the atmosphere would be:

Correct AnswerverifiedShow Answer

The average annual precipitation for the earth is equal to the annual amount of evaporated water.

Correct AnswerverifiedShow Answer

The atmosphere is most unstable when the temperature of the air ______ with height.

Correct AnswerverifiedShow Answer

In your own words, describe the process that causes a cold glass of ice water to 'sweat.' Include a discussion of the flow of energy through this system, and use appropriate vocabulary.

Correct AnswerverifiedHeat will always flow from where there i...View AnswerShow Answer

A__________ is an instrument used to measure humidity.

Correct AnswerverifiedShow Answer

The capacity of air to hold water vapor is temperature dependent.

Correct AnswerverifiedShow Answer

Thunderstorms are most likely to occur when the atmosphere is absolutely unstable.

Correct AnswerverifiedShow Answer

When discussing the water vapor in the air, meteorologists prefer to use absolute humidity rather than mixing ratio.

Correct AnswerverifiedShow Answer

Relative humidity indicates the:

Correct AnswerverifiedShow Answer

Adiabatic processes are only important for air:

Correct AnswerverifiedD

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Relative humidity is the ratio of how mu...
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Essay response should include convective...
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Water evaporates from the oceans and lan...
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B

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D

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Heat will always flow from where there i...
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D