For Question 351 select "B", "C" or "D" ("A" is selected only as an example)!
351. Clouds are divided into four families according to their:
A) None of the below. B) outward shape. C) height range. D) composition.
352. An almond or lens-shaped cloud which apprears stationary, but which may contain winds of 50 knots or more, is referred to as:
A) an inactive frontal cloud. B) a funnel cloud. C) a lenticular cloud. D) None of the above.
353. Crests of standing mountain waves may be marked by stationary, lens-shaped cloudes know as:
A) mammatocumulus clouds. B) standing lenticular clouds. C) roll clouds. D) None of the above.
354. What cloud types would indicate convective turbulence?
A) Cirrus clouds. B) Nimbostratus clouds. C) Towering cumulus clouds. D) None of the above.
355. What clouds have the greatest turbulence?
A) Towering cumulus. B) Cumulonimbus. C) Nimbostratus. D) None of the above.
356. What situation is most conducive to the formation of radiation fog?
A) Warm, moist air over low, flatland areas on clear, calm nights. B) Moist, tropical air moving over cold, offshore water. C) The movement of cold air over much warmer water. D) None of the above.
357. If the temperature/dewpoint spread is small and decreasing, and the temperature is 62 degrees F, what type weather is most likey to develop?
A) Freezing precipitation. B) Thunderstorms. C) Fog or low clouds. D) None of the above.
358. In which situation is advection fog most likely to form?
A) A warm, moist air mass on the windward side of mountains. B) An air mass moving inland from the coast in winter. C) A light breeze blowing colder air out to sea. D) None of the above.
359. What types of fog depend upon wind in order to exist?
A) Radiation fog and ice fog. B) Steam fog and ground fog. C) Advection fog and upslop fog. D) None of the above.
360. One of the most easily recognized discontinuities across a front is:
A) a change in temperature. B) an increase in cloud coverage. C) an increase in relative humidity. D) None of the above.