Download Meteorology Chapter 5 Worksheet 2 Name: Circle the letter that

Meteorology
Chapter 5 Worksheet 2 Name: ________________________________
Circle the letter that corresponds to the correct answer 1) The cloud form that is best described as sheets or layers that cover much or all of the sky is termed: a. cirrus. b. mackerel sky. c. alto. d. cumulus. e. stratus. 2) Of the following cloud types, which is most likely to produce the most rain? a. stratus b. cumulus c. altocumulus d. nimbostratus e. stratocumulus 3) A cumulus cloud is recognized mainly by its: a. obvious vertical dimension. b. darkness or color. c. association with high winds. d. layered structure. e. precipitation. 4) A(n) ________ is a low layer of dark gray clouds that produces precipitation. a. cumulonimbus b. altostratus c. nimbostratus d. cirrostratus e. cirrus 5) The ________ cloud is confined to the middle height range. a. cumulonimbus b. cirrus c. nimbostratus d. cirrostratus e. altostratus 6) Which of these is a mid‐level cloud? a. stratocumulus b. altostratus c. cumulus d. cirrus e. stratus 7) How are jet contrails thought to influence the surface temperatures of cities near major airports? a. Decrease the daily temperature range. b. Definitely make the daily mean temperature warmer. c. Definitely make the daily mean temperature cooler. d. They have no measurable influence on surface temperature. 8) Contrails formed by aircrafts most closely mimic which type of cloud? a. cirrus b. stratus c. fair‐weather cumulus d. cirrocumulus 9) You are flying in an airplane at 36,000 feet above sea level. You see lightning outside your plane window. The cloud that is close by is: a. cirrus. b. cumulus. c. stratus. d. cumulonimbus. e. altocumulus. 10) Where are lenticular clouds most likely to form? a. over oceans b. along coastlines c. to the lee of mountains d. in desert regions 11) Which association is not correct? a. fractus — clouds broken into smaller pieces b. mammatus — rounded, udder‐like bottoms c. uncinus — hook‐shaped d. lenticular — associated with rainbows 12) Cirrus uncinus clouds are often precursors of: a. clear skies. b. bad weather. c. calm conditions. d. lenticular clouds. 13) The ________ cloud may have an "anvil head." a. cumulonimbus b. altostratus c. cirrus d. nimbostratus 14) Thunder and lightning are associated with the ________ cloud. a. cumulonimbus b. altostratus c. cirrus d. cirrostratus e. nimbostratus 15) The conditions that persist along the West Coast of the U. S. that are conducive to fog formation are: a. inversions and a warm land surface. b. moist air moving over a cold surface. c. inversions and a warm water surface. d. steep lapse rate and cold surface. e. steep lapse rate and a warm surface. 16) When warm moist air moves over a cold surface, ________ fog may result. a. steam b. advection c. radiation d. precipitation e. upslope 17) Which type of fog occurs during nights when skies are clear and relative humidity is high? a. radiation fog b. evaporation fog c. advection fog d. steam fog 18) A radiation fog requires which of the following in order to form? a. a warm body of water and a cold breeze b. cold air moving up a slope c. high relative humidity and clear nighttime skies d. warm air moving over a cold surface 19) The type of fog produced when cold air moves over a warm, moist surface is called: a. advection fog. b. radiation fog. c. steam fog. d. frontal fog. 20) The water content or volume of a raindrop is approximately ________ times that of a typical cloud droplet. a. 1 million b. 1000 c. 100 d. 10 e. 1 billion 21) What is the basic reason why condensation is not very important in causing a cloud droplet to grow to raindrop size? a. Not enough particulates are present. b. Condensation is too slow. c. Electrical effects limit condensation. d. The question is incorrect; condensation is very important. e. Latent heat limits condensation. 22) Supercooled water is water which is: a. part liquid and part solid. b. a special form of ice. c. still liquid at temperatures below 0°C. d. of a slightly different chemical nature than ordinary. e. produced from dry ice. Circle “T” if the statement is true or “F” if the statement is false T F 23) All fogs form over cold surfaces.
T F 24) Advection fogs form best when there is no wind.
T F 25) Raindrops form by condensation.
T F 26) Most rainfall in the middle latitudes begins as snow or other forms of frozen water. T F 27) The Bergeron process is associated with supercooled clouds.
T F 28) At ‐15°C, clouds contain both ice crystals and supercooled water droplets. T F 29) The large droplets in a cloud are the least likely to form precipitation.
T F 30) Both gravity and friction act to pull a raindrop to Earth.
T F 31) Freezing nuclei are part of the collision‐coalescence process.
T F 32) The Bergeron process may result in snow or rain.
T F 33) Atmospheric electricity is believed to play an import role in the collision‐coalescence process.
T F 34) Graupel forms when rime collects on ice crystals in a cloud.
T F 35) A precipitation droplet with a diameter of 0.25 mm would be classified as rain. Answer the following questions 36) Why do the liquid droplets that form a cloud (cloud droplets) not fall to the ground as a fine drizzle? 37) Why are raindrops that reach the ground limited to a maximum size of about 5 mm in diameter? 38) List the two requirements that a cumulonimbus cloud must meet if hail is to form. 39) List the two different precipitation measurements that are applied to snowfall.