Chapter 12-Study Questions
Multiple Choice: Select the best answer to complete the
statement
___1. The amount of heat required to raise the temperature of
one gram of water 1ºC is a _____.
a. degree b. calorie c. langley d. isorad
e. thermogram
___2. What term is used to describe the conversion of a solid
directly to a gas, without passing through the liquid state?
a. evaporation b. condensation c. freezing
d. deposition e. sublimation
___3. The weight of water vapor per weight of a chosen mass of
air, including the water vapor, is the air’s _____ humidity.
a. specific b. temporary c. relative d. latent
e. maximum
___4. When air is saturated, its relative humidity is _____.
a. 50% b. 75% c. 100% d. increasing
e. decreasing
___5. If both the dry-bulb and wet-bulb thermometers of a
psychrometer record the same temperature, the air is _____.
a. saturated b. at the dew point c. warming
d. a. and b. e. a., b., and c.
___6. Cooling of air by expansion and a warming of air by
compression are known as _____.
a. environmental b. lapse rate c. latent d. adiabatic
e. atmospheric
___7. A high proportion of the precipitation in the middle
latitudes is produced when air is lifted during a process called
_____.
a. monsoon flow b. dehydration c. thrusting
d. frontal wedging e. rifting
___8. Particles, such as salt from the ocean, that absorb water
are called _____ nuclei.
a. hydro b. aqueous c. latent d. central
e. hygroscopic
___9. Towering clouds of great vertical development are called
_____ clouds.
a. cumulonimbus b. stratonimbus c. nimbostratus
d. cirronimbus e. none of these
___10. What type of fog is likely to form when warm, moist air
is blown over a cool surface?
a. steam fog b. advection fog c. radiation fog
d. frontal fog e. upslope fog
True/False
___11. “Hidden” energy that is not associated with a
temperature change but is absorbed or released during a
change of state is called specific heat.
___12. The temperature to which air would have to be cooled
in order to reach saturation is called the dewpoint.
___13. Three mechanisms that initiate the vertical movement
of stable air are frontal wedging, Orographic lifting, and
divergence.
___14. On the basis of their appearance, the three basic forms
of clouds are cumulus, cirrus, and stratus.
___15. Deposits of ice crystals formed by the freezing of
supercooled fog or cloud droplets are called rime.
___16. Vapor pressure is that part of the total atmospheric
pressure that can be attributed to the water-vapor content.
___17. Lowering the temperature of air below its dew point
causes evaporation.
___18. Rainshadow deserts are often found on the windward
sides of the mountains in the middle latitudes.
___19. For condensation to occur, the air must be saturated
and there generally must be a surface on which the water
vapor may condense.
___20. In meteorology, the term rain is restricted to drops of
water that fall from a cloud and have a diameter of less than .5
millimeter.