Chapter 10: Thunderstorms and Tornadoes 1) Prediction success ...

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23) Of the following states, which is struck by the largest number of tornadoes? A) North Dakota B) North Carolina C) New Mexico D) Ohio E) Oklahoma 24) Which of the following should have the steepest pressure gradient? A) hurricane B) middle-latitude cyclone C) tornado D) a, b and c should have equally steep pressure gradients E) both a and c have equally steep pressure gradients 25) The gust front occurs A) during the development of thunderstorm clouds B) at the leading edge of a thunderstorm downdraft C) on the lee shore of the Great Lakes D) near the anvil part of a thunderstorm cloud 26) Tornadoes and midlatitude cyclones are similar in that: A) both form in the trade-wind belt B) both are most common and well-developed in the winter season C) both are areas of low pressure D) both have conspicuous surface fronts 27) Updrafts dominance relate to the ________ in the development of a thunderstorm. A) dissipating stage B) cumulus stage C) mature stage 28) Which of these is important to the formation of lightning in a growing cumulus cloud? A) absorption of solar cosmic rays B) formation of ice particles C) formation of mammatus cloud D) strong vertical currents E) both b) and d) 29) In the development of a thunderstorm, sharp and cool gusts beginning at the surface are characteristic in the ________. A) mature stage B) cumulus stage C) dissipating stage 30) The greatest proportion of thunderstorms occurs in the A) subarctic regions B) middle latitudes C) tropics D) polar regions E) subtropics
31) What does the term mesocyclone refer to in reference to a tornado? A) a false-alarm tornado warning B) the rotation motion of the parent thunderstorm C) a high-altitude tornado D) a very large tornado E) none of the above 32) "Heat lightning": A) is actually a display of the northern lights B) occurs more than 20 kilometers from the person observing it C) is also called "ball lightning" D) is brighter than ordinary lightning 33) Why is strong heating of the ground by the sun associated with thunderstorms? A) increases the pressure gradient B) increases the wind speed C) leads to greater instability D) reduces the dew point E) reduces the relative humidity 34) What causes the dissipating stage of a thunderstorm? A) spreading downdraft cuts off air inflow B) loss of radiant energy from cloud top C) release of latent heat within the cloud D) converging winds aloft E) converging surface winds 35) Over the last 20 years, which of these has caused the fewest weather related deaths in the U.S.? A) hurricanes B) lightning C) floods D) tornadoes 36) An air mass thunderstorm is most intense during the ________ stage. A) cumulus B) multicell C) mature D) dissipating 37) Why is very humid air near the surface a necessary ingredient for severe thunderstorms? A) more latent heat is then available as energy for the storm B) high humidity makes the air more dense C) high humidity strengthens the cold front D) high humidity makes the rising air cool more rapidly E) lapse rates are larger in humid air 38) Why are thunderstorms most likely to occur in the afternoon and early evening? A) upper-level winds are too fast at night and in morning B) water-vapor contents are too low at night C) it takes all day for them to mature D) atmosphere is most unstable at that time E) lower atmosphere is too unstable in the morning
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Chapter 10: Thunderstorms and Tornadoes 1) Prediction success ...

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