CHAPTER 5-Dew is most likely to form on: nights that are clear and calm than on nights that are cloudy and windy-The name given to a liquid drop of dew that freezes when the air tem-perature drops below freezing is: frozen dew-The cooling of the ground to produce dew is mainly the result of: radi-ational cooling-For frozen dew to form, all of the above-Suppose it is a winter night and at about 10 p.m., the air cools to the dew-point temperature and a thick radiation fog develops. If the air continues to cool during the night, in 5 hours the dew point tempera-ture will probably: decrease as the air becomes drier-Particles that serve as surfaces on which water vapor may condense are called: condensation nuclei-Frost forms when: all of the above-On a humid day, the attraction of water by hygroscopic condensation nuclei causes salty potato chips left outside in an uncovered bowl to turn soggy. -Frost typically forms on the inside of a windowpane (rather than the outside) because: there is more water vapor touching the inside of the pane-Condensation nuclei may be: particles of dust-Condensation nuclei are important in the atmosphere because: with-out them, condensation would not occur easily in atmosphere-Under what circumstances could the relative humidity exceed 00 per-cent without producing fog? there are no condensation nuclei present-Wet haze forms when the relative humidity is: less than 100%-On a cold winter morning, the air near the surface is full of smoke par-ticles. If fog should form in this air, it will probably be thicker than fog that forms in cleaner air. -High fog is also called stratus-When radiation fog "burns off", the fog tends to dissipate: from bottomup-When fog "burns off," it: evaporates-On a clear night, the minimum temperature drops to 34°F. The follow-ing night, fog forms early in the evening. It is a good bet the minimum temperature will not be as low because of the: enhancement of the greenhouse effect by the fog cloud-Winter fog in the Central Valley region of California is mainly due to: radiational cooling-On a cold, winter morning, the most likely place for radiation fog to form is: in a valley -The fog that forms along the Pacific coastline of North America is mainly which type? advection fog-Fog that forms off the coast of Newfoundland is mainly a form of: ad-vection fog-Along an irregular coastline, advection fog is more likely to form at theheadlands than at the beaches because of the converging surface winds and rising air. -If fog is forming at Denver, Colorado, and the wind is blowing from theeast, then the fog is most likely: upslope fog-Exhaled breath from your mouth can condense when: it is very cold-When you see your breath on a cold morning, the air temperature: can be above or below freezing-The use of helicopters to mix the air and disperse radiation fog at air-ports is effective provided that: the fog is a shallow radiation fog with arelatively low liquid water content-On a cold, calm autumn morning, the formation of fog above a rela-tively warm lake would most likely be: steam fog-Which fog does not necessarily form in air that is cooling? evaporationfog-Frontal fog most commonly forms as warm raindrops fall into a layer of colder air. -Fog that most often forms as warm rain falls into a cold layer of sur-face air is called: evaporation-Clouds are classified by their appearance. -A reasonably successful method of dispersing cold fog is to: seed the fog with dry ice-Fog is a major hazard to aviation. true-Which association below is NOT correct? altostratus- high cloud-At which city might you be able to observe cirrus clouds at an altitude of 3,000 m (0,000 feet) above the surface? Barrow, Alaska-Even at high elevations where cirrus clouds are found, liquid water stillexists in the clouds. false-Which association below is not correct? altocumulus castellanus- re-semble “little castles” -Which cloud is LEAST likely to produce precipitation that reaches the ground? cirrocumulus -In middle latitudes, which cloud will have the highest base? cirrostra-tus-A halo around the moon means that: cirrostratus clouds are present and the clouds overhead are high clouds-Which cloud type is composed of ice crystals and can cause a halo to form around the sun or moon? cirrostratus-Which of the following associations is not correct? stratocumulus- cloud of vertical development -Light or moderate-but-steady precipitation is most often associated with nimbostratus clouds. -In middle latitudes, which cloud will have the lowest base? stratocu-mulus-Which of the following cloud types would be found at the highest ele-vation above the earth's surface? cirrocumulus-Which of the following pairs of cloud types could be very similar in ap-pearance? altocumulus and cirrocumulus -Which clouds often appear in parallel waves or bands? altocumulus -A "mackerel sky" describes what type of cloud? cirrocumulus -When viewed from the surface, the smallest individual cloud elements(puffs) are observed with which cloud? cirrocumulus -Cirrus clouds are composed primarily of: ice particles-Detached clouds of delicate and fibrous appearance, without shading, usually white in color and sometimes of a silky appearance are: cirrus clouds-Suppose the sky is completely covered with a thin, white layered-type cloud. You look at the ground and see that objects cast a distinct shadow. From this you conclude that the cloud type must be: cirrostra-tus-At middle latitudes, the base of an altostratus or altocumulus cloud would generally be found between: 6500 and 23000 feet-A middle cloud that sometimes forms in parallel waves or bands is: al-tocumulus -A dim, "watery" sun visible through a gray sheet-like cloud layer is of-ten a good indication of altostratus clouds. -The name given to ragged-looking clouds that rapidly drift with the wind beneath a rain-producing cloud is: scud-An anvil-shaped top is most often associated with: cumulonimbus -If you hold your hand at arm's length and cloud elements appear to beabout the size of your fist, the cloud type is probably: stratocumulus -The name given to a towering cloud that has NOT fully developed into a thunderstorm is: cumulus congestus -A low, lumpy cloud layer that appears in rows, patches, or rounded masses would be classified: stratocumulus -Hail is usually associated with what cloud? cumulonimbus -The cloud with the greatest vertical growth is: cumulonimbus -As Apollo 12 ascended into the atmosphere, the height of the
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