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REVIEW > Meteorology Reviewer > Flashcards

Meteorology Reviewer Flashcards

1
Q

What is the primary cause of all changes in the Earth’s weather?

A

a. Variations of solar energy at the Earth’s surface.

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2
Q

Where do the maximum winds associated with Jetstream usually occur?

A

In the vicinity of breaks in the tropopause on the polar side of the jet core.

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3
Q

At lower levels of the atmosphere, friction causes the wind to
flow across isobars into a low because the friction

A

a. Decreases windspeed and Coriolis force

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4
Q

What feature is associated with a temperature inversion?

A

A stable layer of air

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5
Q

When does minimum temperature normally occur during a
24-hour period?

A

after sunrise

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6
Q

Which of the following combinations of weather producing
variables would likely to result in the cumuliform-type clouds,
good visibility, showery precipitation and possible clear-type
icing in the clouds?

A

a. Unstable, moist air and aerographic lifting

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7
Q

Frontal activity can produce for which is a result of

A

a. Saturation due to evaporation of precipitation

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8
Q

What are the characteristic of stable air?

A

a. Poor visibility, steady precipitation and stratus-type clouds

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9
Q

To what does the term “dewpoint” refer to?

A

a. The temperature at which the evaporation and condensation
points is equal

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10
Q

What term describes an elongated area of low pressures?

A

a. Trough.

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10
Q

What is an indication that downdrafts have developed and the thunderstorm cell has entered mature stage?

A

a. Precipatation begins to fall from the cloud base

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11
Q

Which terrain permits the greatest temperature change?

A

a. Arid, barren surface

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12
Q

Where is the normal location of the Jetstream relative to
surface lows and fronts?

A

a. The Jetstream is located north of the surface systems

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13
Q

Clouds are divided into four (4) families according to their

A

a. Height range

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14
Q

When will frost most likely form on aircraft surfaces?

A

a. On clear nights with stable air and light winds

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15
Q

Which weather condition is an example of a nonfrontal
instability band?

A

a. Squall line

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16
Q

Which thurnderstorms generally produce the most severe
conditions such as heavy hail and destructive winds?

A

b. Squall line thunderstorms

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17
Q

Which weather condition is defined as an anticyclone?

A

b. High pressure area

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18
Q

Which area or areas of the Northern Hemisphere experience
a generally east to west movement of weather systems?

A

b. Arctic and subtropical

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19
Q

Which feature is associated with the tropopause?

A

b. Abrupt change of temperature lapse rate

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20
Q

In the middle latitude, the range of bases for the middle
cloud is

A

b. 6,500 to 23,000 feet

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21
Q

In which meteorological conditions can frontal waves and
low pressure areas form?

A

b. Slow moving cold fronts or stationary fronts.

22
Q

What type of clouds can be expected when an unstable air
mass is forced to ascend a mountain slope?

A

b. Clouds with extensive vertical development

23
Q

What type of weather change is to be expected in an area
where frontolysis is reported?

A

b. The front is dissipating.

24
Q

What determines the type of structural icing that form on the
surface of an aircraft?

A

b. Size of the water droplets and outside air temperature

25
Q

What is a feature if supercooled water?

A

b. The unstable water drop freezes upon striking an exposed
object

26
Q

Where do maximum winds associated with the jetstream
usually occur?

A

b. In the vicinity of breaks in the tropopause on the polar side
of the jet core.

27
Q

Variations in altimeter settings between weather reporting
stations are caused by

A

b. Restrictions to air mass movement caused by natural terrain
barriers

28
Q

Which weather phenomenon is always associated with the
passage of frontal system?

A

b. Change in wind direction

29
Q

Freezing rain encountered during climb is normally evidence
that

A

b. a layer of warmer air exist above

30
Q

Which type precipitation is an indication that supercooled
water is present?

A

a. Wet snow

31
Q

What is the characteristic of the troposphere?

A

b. There is an overall decrease of temperature with an increase
of altitude

32
Q

What weather difference is found on each side of a “dry
line”?

A

b. Dewpoint difference

33
Q

What condition is indicated when ice pellets are
encountered during flight?

A

b. Freezing rain at higher levels

34
Q

Freezing rain encountered during climb is normally evidence
that

A

b. a layer of warmer air exists above

35
Q

Which weather phenomenon signals the beginning of the
mature stage of a thunderstorm?

A

b. The start of rain at the surface.

36
Q

Which type frontal system is normally crossed by the
Jetstream?

A

c. Occluded front

37
Q

Where is the usual location of the thermal low?

A

c. Over the surface of a dry, sunny region

38
Q

Which type wind flows downslope becoming warmer and
dryer?

A

c. Katabatic wind

39
Q

When will frost most likely form on aircraft surfaces?

A

c. On clear nights with stable air and light winds.

40
Q

What condition is necessary for the formation of structural
icing in flight?

A

c. Visible water.

41
Q

What characterizes a ground-based inversion?

A

c. Poor visibility

42
Q

Where is the usual location of thermal low?

A

c. Over the surface of a dry, sunny region.

43
Q

Which event usually occurs after an aircraft passes through
a front into the colder air?

A

c. Atmospheric pressure increases.

44
Q

Which feature is associated with the tropopause?

A

c. Abrupt change of temperature lapse rate.

45
Q

Which type of clouds may be associated with the Jetstream?

A

c. Cirrostratus cloud band on the polar side and under Jetstream.

46
Q

What conditions are necessary for the formation of thunderstorms?

A

c. Lifting force, high humidity and unstable condition

47
Q

What is the feature of a stationary front?

A

c. Surface winds tends to flow parallel to the frontal zone.

48
Q

The localities in which radiation fog would most likely to occur are…

A

c. Level inland areas

49
Q

A clear area in a line of thunderstorm echoes on a radar scope indicates

A

c. An area where precipitation drops are not detected.

50
Q

What is the characteristic of a troposphere?

A

c. There is an overall decrease of temperature with an increase of altitude

51
Q

Which of the following is a high cloud

A

c. Cirrostratus

52
Q

The start of rain:

A

Thunderstorm mature stage

REVIEW (3 decks)

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