Question 1

The necessary conditions for hail formation include strong upward vertical motion and:

Accepted Answer

A)  raindrops larger than 5 mm.
B)  warm temperatures at high levels in the cloud.
C)  large numbers of supercooled droplets.
D)  large numbers of particulates.E) A) and B)
F) None of the above

Question 2

Where is the dryest place on Earth?

Accepted Answer

A)  Arica,Chile
B)  Riyadh,Saudi Arabia
C)  Cairo,Egypt
D)  Canberra,AustraliaE) C) and D)
F) A) and D)

Question 3

The large droplets in a cloud are the least likely to form precipitation.

Accepted Answer

A) True 
 B)False

Question 4

Which association is not correct?

Accepted Answer

A)  fractus - clouds broken into smaller pieces
B)  mammatus - rounded,udder-like bottoms
C)  uncinus - hook-shaped
D)  lenticular - associated with rainbowsE) A) and B)
F) A) and C)

Question 5

The type of fog produced when cold air moves over a warm,moist surface is called:

Accepted Answer

A)  advection fog.
B)  radiation fog.
C)  steam fog.
D)  frontal fog.E) B) and D)
F) None of the above

Question 6

Which of these clouds is least likely to produce precipitation that reaches the ground?

Accepted Answer

A)  cirrostratus
B)  cumulonimbus
C)  nimbostratus
D)  stratusE) B) and C)
F) All of the above

Question 7

Which cloud type is most likely to produce a brief yet intense period of precipitation?

Accepted Answer

The answer of Which cloud type is most likely to...

Question 8

The process of cloud seeding is based on the theory that:

Accepted Answer

A)  silver iodide crystals act as freezing nuclei and enhance the Bergeron process.
B)  silver iodide crystals make droplets heavier than usual so that they fall to the ground.
C)  warm clouds will produce more rain if droplets are encouraged to freeze inside the cloud.
D)  it is impossible to add too many freezing nuclei;the more you add,the more rain will fall.E) A) and B)
F) A) and C)

Question 9

Under which of the following conditions would a heavy snowfall warning be issued?

Accepted Answer

A)  snowfall of ten inches in 24 hours
B)  snowfall of four inches in one hour
C)  snowfall of four inches in 12 hours
D)  all of the aboveE) All of the above
F) A) and D)

Question 10

The growth of a cloud droplet into a rain drop large enough to fall to Earth in a warm cloud is accomplished primarily through:

Accepted Answer

A)  hygroscopic action.
B)  condensation of water vapor.
C)  supercooling of water.
D)  evaporation of water in the cloud.
E)  collision and coalescence.F) A) and D)
G) None of the above

Question 11

Contrails formed by aircrafts most closely mimic which type of cloud?

Accepted Answer

A)  cirrus
B)  stratus
C)  fair-weather cumulus
D)  cirrocumulusE) A) and B)
F) All of the above

Question 12

Of the following cloud types,which is most likely to produce the most rain?

Accepted Answer

A)  stratus
B)  cumulus
C)  altocumulus
D)  nimbostratus
E)  stratocumulusF) B) and D)
G) All of the above

Question 13

All fogs form over cold surfaces.

Accepted Answer

A) True 
 B)False

Question 14

Radiation fog evaporates from the bottom up.

Accepted Answer

A) True 
 B)False

Question 15

Freezing rain falls as a liquid and freezes once its on the ground.

Accepted Answer

A) True 
 B)False

Question 16

The ________ cloud may have an "anvil head."

Accepted Answer

A)  cumulonimbus
B)  altostratus
C)  cirrus
D)  nimbostratus
E)  cirrostratusF) B) and E)
G) A) and B)

Question 17

You observe a cloud at an altitude of 3000 m.This cloud name would have the prefix:

Accepted Answer

A)  alto.
B)  cirro.
C)  strato.
D)  medial.E) A) and D)
F) A) and B)

Question 18

The Bergeron process causes cloud droplets to grow because:

Accepted Answer

A)  water freezes instantly when its temperature reaches 0°C.
B)  freezing nuclei are much more common in the atmosphere than other condensation nuclei.
C)  larger drops fall and collect smaller droplets in the cloud.
D)  the saturation vapor pressure is lower near ice crystals than it is near supercooled droplets.E) None of the above
F) A) and B)

Question 19

Large hailstones hit the ground with speeds exceeding 100 mph.

Accepted Answer

A) True 
 B)False

Question 20

Studies have shown no statistical significance in attempts to suppress hail via cloud seeding.

Accepted Answer

A) True 
 B)False

Exam 5: Forms of Condensation and Precipitation

The necessary conditions for hail formation include strong upward vertical motion and:

Correct AnswerverifiedShow Answer

The process of cloud seeding is based on the theory that:

Correct AnswerverifiedShow Answer

Radiation fog evaporates from the bottom up.

Correct AnswerverifiedShow Answer

Of the following cloud types,which is most likely to produce the most rain?

Correct AnswerverifiedShow Answer

Studies have shown no statistical significance in attempts to suppress hail via cloud seeding.

Correct AnswerverifiedShow Answer

The growth of a cloud droplet into a rain drop large enough to fall to Earth in a warm cloud is accomplished primarily through:

Correct AnswerverifiedShow Answer

The Bergeron process causes cloud droplets to grow because:

Correct AnswerverifiedShow Answer

All fogs form over cold surfaces.

Correct AnswerverifiedShow Answer

Which cloud type is most likely to produce a brief yet intense period of precipitation?

Correct AnswerverifiedShow Answer

Freezing rain falls as a liquid and freezes once its on the ground.

Correct AnswerverifiedShow Answer

You observe a cloud at an altitude of 3000 m.This cloud name would have the prefix:

Correct AnswerverifiedShow Answer

Contrails formed by aircrafts most closely mimic which type of cloud?

Correct AnswerverifiedShow Answer

The large droplets in a cloud are the least likely to form precipitation.

Correct AnswerverifiedShow Answer

The ________ cloud may have an "anvil head."

Correct AnswerverifiedShow Answer

Which of these clouds is least likely to produce precipitation that reaches the ground?

Correct AnswerverifiedShow Answer

Where is the dryest place on Earth?

Correct AnswerverifiedShow Answer

Which association is not correct?

Correct AnswerverifiedShow Answer

The type of fog produced when cold air moves over a warm,moist surface is called:

Correct AnswerverifiedShow Answer

Large hailstones hit the ground with speeds exceeding 100 mph.

Correct AnswerverifiedShow Answer

Under which of the following conditions would a heavy snowfall warning be issued?

Correct AnswerverifiedShow Answer

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