Question 1

How would a droplet formed on a hygroscopic nuclei compare to a droplet that formed on a hydrophobic nuclei?

Accepted Answer

A)   The hygroscopic nuclei droplet would be larger.
B)   The droplet on the hydrophobic nuclei would be smaller.
C)   The droplet on the hygroscopic nuclei would form at a lower relative humidity.
D)   Both A and C
E)   Both B and C.F) All of the above
G) B) and D)

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

The type of fog that frequently exists along the California coast is an advection fog.

Accepted Answer

A) True 
 B)False

Question 4

Tornadoes are only associated with cumulonimbus clouds.

Accepted Answer

A) True 
 B)False

Question 5

Cloud droplets are rarely able to grow through condensation beyond a radius of 20 micrometers because:

Accepted Answer

A)   the statement is false - cloud droplets can actually grow much larger.
B)   the supply of water vapor is quickly consumed by the many competing droplets.
C)   the adiabatic process stops working when condensation begins.
D)   the air gets too cold as condensation occurs.E) C) and D)
F) B) and C)

Question 6

The important difference between liquid droplets and ice crystals in a supercooled cloud is that ice crystals:

Accepted Answer

A)   are smaller.
B)   grow much more rapidly.
C)   increase the water vapor content of the cloud.
D)   are more pure.E) None of the above
F) B) and D)

Question 7

List the two different precipitation measurements that are applied to snowfall.

Accepted Answer

Snow depth and the l...

Question 8

Radiation fog evaporates from the bottom up.

Accepted Answer

A) True 
 B)False

Question 9

When supercooled droplets freeze directly to very cold surfaces and create fine, needle- like ice crystals, the result is:

Accepted Answer

A)   uncinus.
B)   graupel.
C)   rime.
D)   virga.E) C) and D)
F) None of the above

Question 10

Why are raindrops that reach the ground limited to a maximum size of about 5 mm in diameter?

Accepted Answer

Drops growing larger than this...

Question 11

The weather forecast is calling for blizzard conditions. What kind of conditions can you expect at a minimum?

Accepted Answer

A)   winds of at least 35 mph for a minimum of 3 hours
B)   winds of at least 50 mph for a minimum of 3 hours
C)   heavy snowfall of at least 3 inches per hour, but with calm winds
D)   visibility of 1/2 mile or betterE) A) and D)
F) C) and D)

Question 12

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)   condensation of water vapor.
B)   supercooling of water.
C)   collision and coalescence.
D)   hygroscopic action.
E)   evaporation of water in the cloud.F) All of the above
G) A) and B)

Question 13

The Bergeron process is associated with supercooled clouds.

Accepted Answer

A) True 
 B)False

Question 14

Cirrus uncinus clouds are often precursors of:

Accepted Answer

A)   lenticular clouds.
B)   clear skies.
C)   calm conditions.
D)   bad weather.E) A) and B)
F) None of the above

Question 15

Which type of instrument measures rainfall by channeling the rain into small alternating collectors located just below a funnel?

Accepted Answer

A)   hygrometer
B)   weighing gauge
C)   tipping- rain gauge
D)   standard rain gaugeE) B) and C)
F) A) and D)

Question 16

The____________ cloud may have an "anvil head."

Accepted Answer

A)   cirrus
B)   nimbostratus
C)   cirrostratus
D)   cumulonimbus
E)   altostratusF) A) and C)
G) C) and D)

Question 17

When humid air moves up a slope or mountain side, a(n) __________ fog may form.

Accepted Answer

A)   radiation
B)   upslope
C)   advection
D)   valleyE) B) and D)
F) A) and B)

Question 18

Snow pillows are:

Accepted Answer

A)   large panels that calculate snow water equivalent by measuring the weight of collected snow.
B)   large, aggregated snowflakes that stick together as they are falling.
C)   instruments that automatically measure snow depth.
D)   unique snow formations that form on the ground during high winds.E) B) and C)
F) C) and D)

Question 19

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

Accepted Answer

A)   nimbostratus
B)   stratus
C)   cirrostratus
D)   cumulonimbusE) A) and D)
F) C) and D)

Question 20

What measurement does radar provide concerning clouds and precipitation?

Accepted Answer

Radar can measure the rate of ...

Exam 5: Forms of Condensation and Precipitation

The type of fog that frequently exists along the California coast is an advection fog.

Correct AnswerverifiedShow Answer

When humid air moves up a slope or mountain side, a(n) __________ fog may form.

Correct AnswerverifiedShow Answer

The____________ cloud may have an "anvil head."

Correct AnswerverifiedShow Answer

The important difference between liquid droplets and ice crystals in a supercooled cloud is that ice crystals:

Correct AnswerverifiedShow Answer

Which type of instrument measures rainfall by channeling the rain into small alternating collectors located just below a funnel?

Correct AnswerverifiedShow Answer

When supercooled droplets freeze directly to very cold surfaces and create fine, needle- like ice crystals, the result is:

Correct AnswerverifiedShow Answer

The weather forecast is calling for blizzard conditions. What kind of conditions can you expect at a minimum?

Correct AnswerverifiedShow Answer

The Bergeron process is associated with supercooled clouds.

Correct AnswerverifiedShow Answer

What measurement does radar provide concerning clouds and precipitation?

Correct AnswerverifiedRadar can measure the rate of ...View AnswerShow Answer

Snow pillows are:

Correct AnswerverifiedShow Answer

How would a droplet formed on a hygroscopic nuclei compare to a droplet that formed on a hydrophobic nuclei?

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

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

Correct AnswerverifiedShow Answer

List the two different precipitation measurements that are applied to snowfall.

Correct AnswerverifiedSnow depth and the l...View AnswerShow Answer

Tornadoes are only associated with cumulonimbus clouds.

Correct AnswerverifiedShow Answer

Radiation fog evaporates from the bottom up.

Correct AnswerverifiedShow Answer

Why are raindrops that reach the ground limited to a maximum size of about 5 mm in diameter?

Correct AnswerverifiedDrops growing larger than this...View AnswerShow Answer

Cloud droplets are rarely able to grow through condensation beyond a radius of 20 micrometers because:

Correct AnswerverifiedShow Answer

Cirrus uncinus clouds are often precursors of:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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Radar can measure the rate of ...
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Correct Answer
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Snow depth and the l...
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Drops growing larger than this...
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