Download FinalExamSpring2005

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AEN 461G Spring 2005 Final Exam
50 T/F Questions (2 points each – 100 maximum points)
Please print and complete exam. Turn exam by 12:30pm on Wednesday May 4, 2005
Good Luck!!
1.
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The average sea level pressure is 1013.25mb
2.
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A mercury barometer measures altitude
3.
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The top of the atmosphere is at an average altitude of 80km
4.
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The fraction of the atmosphere below the 500mb level is 50%
5.
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An air mass is a large volume of air relatively uniform in
temperature and relative humidity
6.
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Warm dry air is denser than cold dry air
7.
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8.
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The troposphere is denser in the summer than in the winter,
across the US
When cold air advection is present, the air pressure tendency is
9.
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upward
Temperature, density, and pressure are the variables of state
10.
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The air pressure inside and outside of a building is generally equal
11.
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Air pressure decreases uniformly with height
12.
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The lowest pressure in an L must be lower than the highest
pressure in a H on the same weather map
13.
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Vertical pressure gradients are smaller than horizontal pressure
gradients across the same distance
14.
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The Ideal Gas Law can be written in the form p = ρRT
15.
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Over land, annual precipitation equal annual evaporation
16.
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When ice turns directly to a gas it is called deposition
17.
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In a saturated parcel, if the temperature falls, so does the relative
humidity
18.
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A relative humidity of 100% occurs when the temperature and the
dew point are equal
19.
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20.
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21.
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A temperature inversion is characterized by a decrease in air
temperature with height
If the temperature remains constant with height, the profile is
called isothermal
A lapse rate of -8°C per 1000m is conditionally stable
22.
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The dry adiabatic lapse rate is equal to -6.5°C per kilometer
23.
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Unstable air suppresses vertical motion of air parcels
24.
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Stable air spurs convection
25.
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The leeward side of a mountain is wetter than the windward side
26.
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During the winter, precipitable water is likely to be higher in Salt
Lake City than New Orleans
27.
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The wet bulb depression is the difference between the dew point
and the air temperature
28.
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The atmosphere would be absolutely stable if the lapse rate were
positive
29.
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The relative humidity within a cloud is about 100%
30.
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A cloud that develops as a result of convection is a stratus cloud
31.
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A cirrus cloud will most likely be only composed of ice crystals
32.
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Cumulonimbus clouds exhibit considerable vertical development
33.
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Generally, a stratus cloud will be colder than a cirrus cloud
34.
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Clear skies, strong winds, and low vapor pressure are required for
extreme nocturnal radiational cooling
35.
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Fog formed when cold dry air flows over a warmer body of water
is called radiation fog
36.
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Mountain wave clouds are not stationary
37.
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It takes about 1000 cloud drops to form a single rain drop
38.
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The Bergeron-Findesisen process occurs in warm clouds
39.
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The terminal velocity of hail will generally be larger than the
terminal velocity of a snowflake
40.
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Sleet can also be referred to as ice pellets
41.
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Virga is precipitation that falls from a cloud but evaporates before
reaching the ground
42.
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Weather radars continually emit pulses of gamma rays
43.
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A cP air mass will most likely form over central Mexico
44.
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The slope of a cold front is steeper than that of a warm front
45.
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The occlusion stage of an extratropical cyclone is the final stage
of cyclone development
46.
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The life cycle of the thunderstorm follows these stages: cumulus,
mature, dissipating
47.
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For a thunderstorm to be severe there must be hail greater than
¾” in diameter
48.
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The greatest concentration of tornadoes in the US occurs in
Kentucky
49.
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The Fujita scale is used for hurricanes and the Saffir-Simpson
scale is used for tornadoes
50.
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Winds in a tornado can exceed those in a hurricane
Bonus (6 points)
List and describe in detail Tom’s Six Rules of Thumb