Meteorology Reviewer

Question 1

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

Answer 1

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

Question 2

Where do the maximum winds associated with Jetstream usually occur?

Answer 2

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

Question 3

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

Answer 3

a. Decreases windspeed and Coriolis force

Question 4

What feature is associated with a temperature inversion?

Answer 4

A stable layer of air

Question 5

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

Answer 5

after sunrise

Question 6

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?

Answer 6

a. Unstable, moist air and aerographic lifting

Question 7

Frontal activity can produce for which is a result of

Answer 7

a. Saturation due to evaporation of precipitation

Question 8

What are the characteristic of stable air?

Answer 8

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

Question 9

To what does the term “dewpoint” refer to?

Answer 9

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

Question 10

What term describes an elongated area of low pressures?

Answer 10

a. Trough.

Question 10

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

Answer 10

a. Precipatation begins to fall from the cloud base

Question 11

Which terrain permits the greatest temperature change?

Answer 11

a. Arid, barren surface

Question 12

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

Answer 12

a. The Jetstream is located north of the surface systems

Question 13

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

Answer 13

a. Height range

Question 14

When will frost most likely form on aircraft surfaces?

Answer 14

a. On clear nights with stable air and light winds

Question 15

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

Answer 15

a. Squall line

Question 16

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

Answer 16

b. Squall line thunderstorms

Question 17

Which weather condition is defined as an anticyclone?

Answer 17

b. High pressure area

Question 18

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

Answer 18

b. Arctic and subtropical

Question 19

Which feature is associated with the tropopause?

Answer 19

b. Abrupt change of temperature lapse rate

Question 20

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

Answer 20

b. 6,500 to 23,000 feet

Question 21

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

Answer 21

b. Slow moving cold fronts or stationary fronts.

Question 22

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

Answer 22

b. Clouds with extensive vertical development

Question 23

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

Answer 23

b. The front is dissipating.

Question 24

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

Answer 24

b. Size of the water droplets and outside air temperature

Question 25

What is a feature if supercooled water?

Answer 25

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

Question 26

Where do maximum winds associated with the jetstream usually occur?

Answer 26

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

Question 27

Variations in altimeter settings between weather reporting stations are caused by

Answer 27

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

Question 28

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

Answer 28

b. Change in wind direction

Question 29

Freezing rain encountered during climb is normally evidence that

Answer 29

b. a layer of warmer air exist above

Question 30

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

Answer 30

a. Wet snow

Question 31

What is the characteristic of the troposphere?

Answer 31

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

Question 32

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

Answer 32

b. Dewpoint difference

Question 33

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

Answer 33

b. Freezing rain at higher levels

Question 34

Freezing rain encountered during climb is normally evidence that

Answer 34

b. a layer of warmer air exists above

Question 35

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

Answer 35

b. The start of rain at the surface.

Question 36

Which type frontal system is normally crossed by the Jetstream?

Answer 36

c. Occluded front

Question 37

Where is the usual location of the thermal low?

Answer 37

c. Over the surface of a dry, sunny region

Question 38

Which type wind flows downslope becoming warmer and dryer?

Answer 38

c. Katabatic wind

Question 39

When will frost most likely form on aircraft surfaces?

Answer 39

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

Question 40

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

Answer 40

c. Visible water.

Question 41

What characterizes a ground-based inversion?

Answer 41

c. Poor visibility

Question 42

Where is the usual location of thermal low?

Answer 42

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

Question 43

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

Answer 43

c. Atmospheric pressure increases.

Question 44

Which feature is associated with the tropopause?

Answer 44

c. Abrupt change of temperature lapse rate.

Question 45

Which type of clouds may be associated with the Jetstream?

Answer 45

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

Question 46

What conditions are necessary for the formation of thunderstorms?

Answer 46

c. Lifting force, high humidity and unstable condition

Question 47

What is the feature of a stationary front?

Answer 47

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

Question 48

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

Answer 48

c. Level inland areas

Question 49

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

Answer 49

c. An area where precipitation drops are not detected.

Question 50

What is the characteristic of a troposphere?

Answer 50

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

Question 51

Which of the following is a high cloud

Answer 51

c. Cirrostratus

Question 52

The start of rain:

Answer 52

Thunderstorm mature stage