Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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The
air temperature is 68°F. There are actually 12 grams of water vapor. At 28°F
air could hold 36 grams of water vapor. What is the relative humidity of the
air?
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2.
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Compared to clouds, fogs are ____. a. | colder | c. | at lower altitudes | b. | of a different
composition | d. | drier | | | | |
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3.
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When
two temperatures read nearly the same on a psychrometer, you can conclude
that ____. a. | your instrument
reading is accurate | b. | a change in temperature is likely | c. | the dew point
temperature is very low | d. | the air has a high relative humidity | | |
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4.
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Which
of the following is an example of condensation nuclei? a. | dust | c. | salt
particles | b. | smoke | d. | all of the above | | | | |
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5.
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What
is true about warm, saturated air? a. | It contains less water vapor than cold
air. | b. | It contains more
water vapor than cold air. | c. | It contains the same amount of water vapor as cold
air. | d. | It does not
contain any water vapor. | | |
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6.
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Which
term describes the conversion of a solid directly to a gas, without passing through the liquid
state? a. | evaporation | b. | sublimation | c. | condensation | d. | deposition | | | | | | | | |
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7.
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Rain,
snow, sleet, and hail are all examples of ____. a. | evaporation | b. | condensation | c. | precipitation | d. | deposition | | | | | | | | |
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8.
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Which
term means “rainy cloud”? a. | stratus | c. | cirrus | b. | nimbus | d. | cumulus | | | | |
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9.
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Orographic lifting is associated with ____. a. | mountains | b. | rivers | c. | flat
plains | d. | fronts | | | | | | | | |
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10.
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What
is true about relative humidity? a. | It indicates how near the air is to
saturation. | b. | It indicates the actual quantity of water vapor in the
air. | c. | It is the
general term used to describe the amount of water vapor in air. | d. | It is the
temperature to which a parcel of air would need to be cooled to reach
saturation. | | |
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