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University Of Arizona ATMO 170A Chapter 4 1)_____________occupy or cover approximately 70% of the earth’s surface a

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University Of Arizona

ATMO 170A

Chapter 4

1)_____________occupy or cover approximately 70% of the earth’s surface

a.            Forest

b.            Cities

c.             Oceans

d.            Clouds

2.            As the air temperature increases, the air’s capacity for water vapor         .

a.            Increases

b.            Decreases

c.             Remains constant

d.            Can either increase or decrease because it is unrelated to air temperature

 

3.            If very cold air is brought indoors and warmed with no change in its moisture content, the saturation vapor pressure of this air will   and the relative humidity of this air will  .

a.            Increase, increase

b.            Decrease, decrease

c.             Increase, decrease

d.            Decrease, increase

4.            As the air temperature increases, with no addition of water vapor to the air, the dew point will .

a.            Remain the same

b.            Increase

c.             Decrease

d.            Become equal to the air temp

5.            The temperature to which air must be cooled in order to become saturated in the           .

a.            Minimum temp

b.            Dew point temp

c.             Wet bulb temp

d.            Freezing point

6.            As the difference between the air temperature and the dew point increases, the relative humidity         .

a.            Increases

b.            Decreases

c.             Remains constant at a value less than 100%

d.            Remains constant and equal to 100%

7.            What is a measure of how cool skin can become, i.e., the lowest temp that can be reached by evaporating water into the air?

a.            Dew point temp

b.            Wet bulb temp

c.             Dry bulb temp

d.            Heat index

8.            The Heat Index (HI) is based on the apparent temperature, which is a combination of air temperature and                .

a.            Wind speed

b.            Relative humidity

c.             Solar intensity

d.            Cloud cover

9.            If water vapor comprises 3.5% of an air parcel whose total pressure is 1000 mb, the water vapor pressure would be             .

a.            1035 mb

b.            35 mb

c.             350 mb

d.            965 mb

10.          The percentage of water vapor present in the air compared to that required for saturation is the              .

a.            Mixing ratio

b.            Absolute humidity

 

c.             Dew point

d.            Relative humidity

11.          Which of the following would cause relative humidity to decrease?

a.            Cooling the air

b.            Warming the air

c.             Increasing the actual water vapor pressure

d.            Decreasing the saturation water vapor pressure

12.          When the air temperature increases, the saturation vapor pressure will

a.            Increase

b.            Decrease

c.             Remain the same

d.            Vary over an increasingly broad range of values

13.          A golf ball will travel slightly farther on a                day.

a.            Cool, clear

b.            Cool. Cloudy

c.             Hot, dry

d.            Hot, humid

14.          Particles that serve as surfaces on which water vapor may condense are called  .

a.            Hydrophobic nuclei

b.            Nacreous nuclei

c.             Condensation nuclei

d.            Scud

15.          The production of dew is mainly the result of     .

a.            Conduction

b.            Radiational cooling

c.             Cooling due to the release of latent heat

d.            Advection

16.          Dew is most likely to for on         .

a.            Clear, calm nights

b.            Cloudy, calm nights

c.             Clear, windy nights

d.            Cloudy, windy nights

17.          Frost forms when

a.            Conditions are cold, cloudy, and windy

b.            The dew point is 32 degrees or below

c.             The dew point is above 32 degrees

d.            Dew freezes

18.          Radiation fog forms when            .

a.            Air pressure at the ground drops suddenly

b.            Air next to the ground is cooled

c.             Water vapor is added to air next to the ground

d.            There is an increase in condensation nuclei in air at the ground

19.          On a cold, winter morning the most likely place for radiation fog to form is           .

a.            At the top of a hill or mountain

b.            In a valley

c.             Along the side of a hill

 

d.            Over a body of water

20.          A good example of          is observed along the pacific coast during summer, when warm, moist air from the ocean is carried over colder coastal waters

a.            Radiation fog

b.            High fog

c.             Advection fog

d.            Evaporation fog

21.          Exhaled breath from your mouth in cold weather produces         .

a.            Radiation fog

b.            Frontal fog

c.             Advection fog

d.            Mixing fog

22.          A warm rain falling through a layer of cold, moist air can produce               .

a.            Radiation fog

b.            Frontal fog

c.             Advection fog

d.            Upslope fog

23.          Which cloud is least likely to produce precipitation that reaches the ground

a.            Stratus

b.            Nimbostratus

c.             Cumulonimbus

d.            Cirrocumulus

24.          A halo around the moon means that       .

a.            Cirrostratus clouds are present

b.            The clouds overhead are low clouds

c.             Rain is falling from the clouds overhead

d.            The clouds are composed of water droplets

25.          A dim, watery sun visible through a gray sheet like cloud layer is often a good indication of           clouds.

a.            Stratocumulus

b.            Cirrostratus

c.             Altostratus

d.            Nimbostratus

26.          Light or moderate continuous precipitation is most often associated with             clouds

a.            Nimbostratus

b.            Cirrostratus

c.             Cirrocumulus

d.            Cumulonimbus

27.          A low, lumpy cloud layer that appears in rows, patches or rounded masses would be classified   .

a.            nimbostratus

b.            stratus

c.             cumulus

d.            stratocumulus

28.          The name given to a towering cloud that produces precipitation that is showery with frequent changes in intensity is          .

 

a.            Cumulus humilis

b.            Cumulus mediocris

c.             Cumulonimbus

d.            Altocumulus

29.          An anvil-shaped top is most often associated with           .

a.            Cumulonimbus

b.            Cumulus congestus

c.             Altocumulus

d.            Altocumulus

30.          Hail is usually associated with what cloud

a.            Cumulus

b.            Stratocumulus

c.             Altocumulus

d.            Cumulonimbus

31.          Clouds that appear as bag-like sacks hanging from beneath a cloud are  .

a.            Pileus

b.            Lenticular

c.             Mammatus

d.            Castellanus

32.          There are two primary types of weather satellites in use for viewing clouds. The first are geostationary satellites and the second are      satellites

a.            Equatorial

b.            Polar orbiting

c.             Geosynchronous

d.            Visible cloud

33.          The naming clouds, the term “status” or “strato” means                .

a.            Thick

b.            Storm

c.             Low altitude

d.            Layer clouds

34.          Cirrus clouds are composed primarily of .

a.            Water droplets

b.            Water vapor

c.             Ice particles

d.            Salt aerosols

35.          Thin, wispy clouds blown by high winds into long streamers, called mare’s tails are           .

a.            Stratus

b.            Cirrocumulus

c.             Altostratus

d.            Cirrus

36.          When viewed from the surface, high clouds that are small founded white puffs occurring individually or in long rows are called        .

a.            Stratocumulus

b.            Cirrostratus

c.             Cirrocumulus

d.            Cirrus

 

37.          Which type of cloud shows the greatest verical growth?

a.            Cumulus congestus

b.            Cumulus humilis

c.             Cumulonimbus

d.            Cirrocumulus

38.          Transpiration from plants and evaporation from soil, lakes, and streams account for a majority of the water vapor added to the atmosphere each year.

39.          Hot air with a low relative humidity may actually contain more water vapor than cool air

with a high relative humidity.

40.          The relative humidity is often near 100% in the Polar Regions.

41.          Frost occurs when dew freezes.

42.          Clouds can be accurately identified strictly on the basis of elevation.