Question 1

Advection fogs form best when there is no wind.

Accepted Answer

A) True 
 B)False

Question 2

The most common way for air to be cooled in order that a cloud may form is by:

Accepted Answer

A) sinking and contracting. 
B) emitting radiation. 
C) evaporating water. 
D) rising and expanding. 
E) reflecting radiation. 
A) sinking and contracting. 
B) emitting radiation. 
C) evaporating water. 
D) rising and expanding. 
E) reflecting radiation.

Question 3

Successful dispersal of fog by seeding is limited to supercooled fog.

Accepted Answer

A) True 
 B)False

Question 4

At -15°C,clouds contain both ice crystals and supercooled water droplets.

Accepted Answer

A) True 
 B)False

Question 5

Atmospheric electricity is believed to play an import role in the collision-coalescence process.

Accepted Answer

A) True 
 B)False

Question 6

A cloud that forms liquid droplets has a relative humidity of 100 percent with respect to the liquid droplets.If temperature is <0°C and ice crystals form in this cloud,the relative humidity will be ________ with respect to the ice crystals.

Accepted Answer

A) 100 percent 
B) less that 100 percent 
C) more than 100 percent 
D) 0 percent 
A) 100 percent 
B) less that 100 percent 
C) more than 100 percent 
D) 0 percent

Question 7

When a 'trace of precipitation' has been reported,it means that less than 0.25 inches of rain has fallen.

Accepted Answer

A) True 
 B)False

Question 8

The largest hailstone ever recorded in the United States weighed over 5 pounds.

Accepted Answer

A) True 
 B)False

Question 9

Nimbostratus clouds can produce long,steady periods of precipitation.

Accepted Answer

A) True 
 B)False

Question 10

High clouds are those that form at altitudes of at least:

Accepted Answer

A) 6500 ft (2000 m). 
B) 20,000 ft (6000 m). 
C) 32,800 ft (10,000 m). 
D) 65,617 ft (20,000 m). 
A) 6500 ft (2000 m). 
B) 20,000 ft (6000 m). 
C) 32,800 ft (10,000 m). 
D) 65,617 ft (20,000 m).

Question 11

The cloud droplets in a cloud are formed by water vapor molecules and:

Accepted Answer

A) protons. 
B) ions. 
C) molecules of air. 
D) condensation nuclei. 
E) other water vapor molecules. 
A) protons. 
B) ions. 
C) molecules of air. 
D) condensation nuclei. 
E) other water vapor molecules.

Question 12

A radiation fog requires which of the following in order to form?

Accepted Answer

A) a warm body of water and a cold breeze 
B) cold air moving up a slope 
C) high relative humidity and clear nighttime skies 
D) warm air moving over a cold surface 
A) a warm body of water and a cold breeze 
B) cold air moving up a slope 
C) high relative humidity and clear nighttime skies 
D) warm air moving over a cold surface

Question 13

Graupel forms when rime collects on ice crystals in a cloud.

Accepted Answer

A) True 
 B)False

Question 14

The growth of a hailstone usually involves everything EXCEPT:

Accepted Answer

A) spontaneous freezing of large water droplets. 
B) being carried several times into the frozen region of the cloud by updrafts. 
C) ice pellets encountering supercooled water droplets. 
D) the development of alternating layers of clear and cloudy ice. 
A) spontaneous freezing of large water droplets. 
B) being carried several times into the frozen region of the cloud by updrafts. 
C) ice pellets encountering supercooled water droplets. 
D) the development of alternating layers of clear and cloudy ice.

Question 15

Freezing nuclei are part of the collision-coalescence process.

Accepted Answer

A) True 
 B)False

Question 16

Who first created the cloud classification system on which our modern system is based?

Accepted Answer

A) Benjamin Franklin 
B) Luke Howard 
C) Tor Bergeron 
D) Andrew Ellis 
A) Benjamin Franklin 
B) Luke Howard 
C) Tor Bergeron 
D) Andrew Ellis

Question 17

Hygroscopic nuclei:

Accepted Answer

A) repel water and prevent condensation. 
B) can allow cloud droplets to form even if the relative humidity is less than 100%. 
C) are not generally found in nature. 
D) are not the most ideal type of condensation nuclei for encouraging droplet growth. 
A) repel water and prevent condensation. 
B) can allow cloud droplets to form even if the relative humidity is less than 100%. 
C) are not generally found in nature. 
D) are not the most ideal type of condensation nuclei for encouraging droplet growth.

Question 18

Which of these is a mid-level cloud?

Accepted Answer

A) stratocumulus 
B) altostratus 
C) cumulus 
D) cirrus 
E) stratus 
A) stratocumulus 
B) altostratus 
C) cumulus 
D) cirrus 
E) stratus

Question 19

Clouds which have extensive vertical dimensions are often classified as:

Accepted Answer

A) cirrus. 
B) very thin. 
C) nimbus. 
D) lenticularis. 
E) cumulus. 
A) cirrus. 
B) very thin. 
C) nimbus. 
D) lenticularis. 
E) cumulus.

Question 20

A(n)________ is a low layer of dark gray clouds that produces precipitation.

Accepted Answer

A) cumulonimbus 
B) altostratus 
C) nimbostratus 
D) cirrostratus 
E) cirrus 
A) cumulonimbus 
B) altostratus 
C) nimbostratus 
D) cirrostratus 
E) cirrus

Advection fogs form best when there is no wind.

The most common way for air to be cooled in order that a cloud may form is by:

Successful dispersal of fog by seeding is limited to supercooled fog.

At -15°C,clouds contain both ice crystals and supercooled water droplets.

Atmospheric electricity is believed to play an import role in the collision-coalescence process.

A cloud that forms liquid droplets has a relative humidity of 100 percent with respect to the liquid droplets.If temperature is <0°C and ice crystals form in this cloud,the relative humidity will be ________ with respect to the ice crystals.

When a 'trace of precipitation' has been reported,it means that less than 0.25 inches of rain has fallen.

The largest hailstone ever recorded in the United States weighed over 5 pounds.

Nimbostratus clouds can produce long,steady periods of precipitation.

High clouds are those that form at altitudes of at least:

The cloud droplets in a cloud are formed by water vapor molecules and:

A radiation fog requires which of the following in order to form?

Graupel forms when rime collects on ice crystals in a cloud.

The growth of a hailstone usually involves everything EXCEPT:

Freezing nuclei are part of the collision-coalescence process.

Who first created the cloud classification system on which our modern system is based?

Hygroscopic nuclei:

Which of these is a mid-level cloud?

Clouds which have extensive vertical dimensions are often classified as:

A(n)________ is a low layer of dark gray clouds that produces precipitation.

Introduction to the Atmosphere

Heating Earths Surface and Atmosphere

Temperature

Moisture and Atmospheric Stability

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 5: Forms of Condensation and Precipitation

Advection fogs form best when there is no wind.

The most common way for air to be cooled in order that a cloud may form is by:

Successful dispersal of fog by seeding is limited to supercooled fog.

At -15°C,clouds contain both ice crystals and supercooled water droplets.

Atmospheric electricity is believed to play an import role in the collision-coalescence process.

A cloud that forms liquid droplets has a relative humidity of 100 percent with respect to the liquid droplets.If temperature is <0°C and ice crystals form in this cloud,the relative humidity will be ________ with respect to the ice crystals.

When a 'trace of precipitation' has been reported,it means that less than 0.25 inches of rain has fallen.

The largest hailstone ever recorded in the United States weighed over 5 pounds.

Nimbostratus clouds can produce long,steady periods of precipitation.

High clouds are those that form at altitudes of at least:

The cloud droplets in a cloud are formed by water vapor molecules and:

A radiation fog requires which of the following in order to form?

Graupel forms when rime collects on ice crystals in a cloud.

The growth of a hailstone usually involves everything EXCEPT:

Freezing nuclei are part of the collision-coalescence process.

Who first created the cloud classification system on which our modern system is based?

Hygroscopic nuclei:

Which of these is a mid-level cloud?

Clouds which have extensive vertical dimensions are often classified as:

A(n)________ is a low layer of dark gray clouds that produces precipitation.

Introduction to the Atmosphere

Heating Earths Surface and Atmosphere

Temperature

Moisture and Atmospheric Stability

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