5 METEO. EXAM. PREP.

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5 METEO. EXAM. PREP.
tsampikos pompou
Quiz by tsampikos pompou, updated more than 1 year ago
tsampikos pompou
Created by tsampikos pompou over 7 years ago
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5

Resource summary

Question 1

Question
110 Fog produced by frontal activity is a result of saturation due to
Answer
  • O evaporation of precipitation.
  • O nocturnal cooling
  • O adiabatic cooling.
  • O advection of moist air

Question 2

Question
111 Which in-flight hazard is most commonly associated with warm fronts?
Answer
  • O Precipitation-induced fog.
  • O Advection fog.
  • O Radiation fog.
  • O Steam fog

Question 3

Question
112 In which environment is aircraft structural ice most likely to have the highest accumulation rate?
Answer
  • O Freezing rain.
  • O Cumulus clouds with below freezing tempera¬tures.
  • O Freezing drizzle.
  • O None of the those

Question 4

Question
113 In what ways do advection fog, radiation fog, and steam fog differ in their formation or location?
Answer
  • O Radiation fog is restricted to land areas; advection fog is most common along coastal areas; steam fog forms over a water surface.
  • O Advection fog deepens as windspeed increases up to 20 knots; steam fog requires calm or very light wind; radiation fog forms when the ground or water cools the air by radiation.
  • O Steam fog forms from moist air moving over a colder surface; advection fog requires cold air over a warmer surface; radiation fog is produced by radiational cooling of the ground.
  • O None of the those

Question 5

Question
114 . Which conditions are favorable for the formation of a surface based temperature inversion?
Answer
  • O Clear, cool nights with calm or light wind,
  • O Area of unstable air rapidly transferring heat from the surface.
  • O Broad areas of cumulus clouds with smooth, level bases at the same altitude
  • O Advection of warm moist air

Question 6

Question
115 . What are the characteristics of stable air?
Answer
  • O Poor visibility; steady precipitation; stratus clouds.
  • O Good visibility; steady precipitation; stratus clouds.
  • O Poor visibility; intermittent precipitation; cumulus clouds.
  • O Good visibility, turbulence, cumulus clouds

Question 7

Question
116 . Which would decrease the stability of an air mass?
Answer
  • O Warming from below.
  • O Cooling from below.
  • O Decrease in water vapor.
  • O None of those

Question 8

Question
117 . What is a characteristic of stable air?
Answer
  • O Stratiform clouds.
  • O Fair weather cumulus clouds.
  • O Temperature decreases rapidly with altitude
  • O Cirrus clouds

Question 9

Question
118 . What type weather can one expect from moist, unstable air, and very warm surface temperature?
Answer
  • O Strong updrafts and cumulonimbus clouds.
  • O Fog and low stratus clouds.
  • O Continuous heavy precipitation
  • O Fair weather and cirrus clouds

Question 10

Question
119 . A moist, unstable air mass is characterized by
Answer
  • O cumuliform clouds and showery precipitation
  • O poor visibility and smooth air.
  • O stratiform clouds and continuous precipitation
  • O good visibility and stratiform clouds

Question 11

Question
120 . If clouds form as a result of very stable, moist air being forced to ascend a mountain slope, the clouds will be
Answer
  • O stratus type with little vertical development and little or no turbulence.
  • O cirrus type with no vertical development or turbulence
  • O cumulus type with considerable vertical development and turbulence.
  • O rotor type

Question 12

Question
121 The formation of either predominantly stratiform or predominantly curnuliform clouds is dependent upon the
Answer
  • O stability of the air being lifted.
  • O source of lift
  • O temperature of the air being lifted.
  • O the difference between surface temperature and due point

Question 13

Question
122 . When an air mass is stable, which of these conditions are most likely to exist?
Answer
  • O Smoke, dust, haze, etc., concentrated at the lower levels with resulting poor visibility.
  • O Numerous towering cumulus and cumulonimbus clouds
  • O Moderate to severe turbulence at the lower levels.
  • O Updrafts and showery precipitation

Question 14

Question
123 . From which measurement of the atmosphere can stability be determined?
Answer
  • O The ambient lapse rate.
  • O Atmospheric pressure
  • O The dry adiabatic lapse rate.
  • O The wet ( saturated) adiabatic lapse rate

Question 15

Question
124 [Fig.16] What lifts advection fog into low stratus clouds?
Answer
  • O Surface winds of approximately 15 knots or stronger.
  • O Nighttime cooling.
  • O Dryness of the underlying land mass.
  • O Updraft

Question 16

Question
125 Which would increase the stability of an air mass?
Answer
  • O Cooling from below.
  • O Warming from below.
  • O Decrease in water vapor.
  • O Increase in water vapor

Question 17

Question
126 The conditions necessary for the formation of stratiform clouds are a lifting action and
Answer
  • O stable, moist air.
  • O unstable, dry air.
  • O unstable, moist air.
  • O stable dry air

Question 18

Question
127 What feature is normally associated with the cumulus stage of a thunderstorm?
Answer
  • O Continuous updraft.
  • O Roll cloud
  • O Beginning of rain at the surface.
  • O Anvil top

Question 19

Question
128 . The conditions necessary for the formation of cumulonimbus clouds are a lifting action and
Answer
  • O unstable, moist air.
  • O unstable, dry air.
  • O stable, moist air.
  • O stable dry air

Question 20

Question
129 . The most severe weather conditions, such as destructive winds, heavy hail, and tornadoes, are generally associated with
Answer
  • O squall lines.
  • O slow-moving warm fronts which slope above the tropopause.
  • O fast-moving occluded fronts.
  • O warm sector

Question 21

Question
130 Which statement is true concerning squall lines?
Answer
  • O They offer the most intense weather hazards to aircraft.
  • O They form slowly, but move rapidly.
  • O They are associated with frontal systems only.
  • O None of the those

Question 22

Question
131 Select the true statement pertaining to the life cycle of a thunderstorm.
Answer
  • O The beginning of rain at the Earth's surface indicates the mature stage of the thunderstorm
  • O Updrafts continue to develop throughout the dissipating stage of a thunderstorm
  • O The beginning of rain at the Earth's surface indicates the dissipating stage of the thunderstorm
  • O Updrafts develop only throughout the cumulus stage

Question 23

Question
132 . Which weather phenomenon signals the beginning of the mature stage of a thunderstorm?
Answer
  • O The start of rain.
  • O The appearance of an anvil top.
  • O Growth rate of cloud is maximum
  • O Develop of updraft

Question 24

Question
133 During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?
Answer
  • O Dissipating.
  • O Mature.
  • O Developing.
  • O All stages

Question 25

Question
134 Refer on the Significant Weather Chart in Fig.14. The SIGMET of the same day warns: WSIY31 LIIB 230437 LIMM SIGMET 02 VALID 230500/230700 LIMM- MILANO FIR EMBD TS FCST ALPINE AREA AND PO VALLEY AT THE BORDER WITH ALPS MAINLY CENTRAL PART MOV E NC SEV ICE FCST BTN FL100 AND FL190 MAINLY CENTRAL ALPS AND PREALPINE AREA MOV SE NC= For the area of:
Answer
  • O Italy
  • O Turkey
  • O UK
  • O Scandinavia
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