ATC WEATHER TEST EXAM
CURRENTLY TESTING
COMPLETE EXAM QUESTIONS
WITH DETAILED VERIFIED
ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED
A+
An unexpected change in wind speed and/or
direction resulting in a tearing or shearing effect.
Can exist horizontally or vertically. -
....ANSWER...Wind Shear
A highly localized, high-speed downburst of air,
existing for short periods during the life of the
thunderstorm. Typically less than one mile in
diameter, can extend to approximately 2.5 miles in
diameter. - ....ANSWER...Microburst
A cloud resting on the earth's surface, one of the
most hazardous weather phenomena known to
aviation. Relative humidity is the amount of water
,vapor in the air, and expressed as a percentage. -
....ANSWER...Fog
The temperature to which air must be cooled for
saturation to occur (Saturation being the maximum
amount of water vapor the air can hold, 100% relative
humidity). - ....ANSWER...Dew Point
Radiation, Advection, Upslope, Steam, and Frontal. -
....ANSWER...Types of Fog
Surface. - ....ANSWER...Rain rarely reduces ______
visibility.
Sharply. - ....ANSWER...Freezing precipitation _____
reduces the pilot's vision.
Any huge body of air whose physical properties
(temperature and moisture) are horizontally uniform
level for level. - ....ANSWER...Air Masses
Formed when a large body of air assumes all
properties of temperature and moisture while
resting over its "source region." Best source regions
,are the large snow and ice covered polar regions,
cold northern oceans, tropical oceans, and large
desert areas. - ....ANSWER...Formation of air masses
Cumuliform clouds, showery precipitation, rough air
(turbulence), good visibility (except during
precipitation). - ....ANSWER...Unstable air in air
masses
Stratiform clouds and fog, continuous precipitation,
smooth air, fair to poor visibility. -
....ANSWER...Stable air in air masses
West to East. - ....ANSWER...General motion of air
masses in the U.S. is...
500 - 700. - ....ANSWER...Air masses generally move
how many miles a day?
The weight of the atmosphere. - ....ANSWER...Cold air
masses move more rapidly than warm due to...
, Defined as a boundary or line of discontinuity
separating two different air masses. -
....ANSWER...Fronts
Occurs when cold air replaces a region occupied by
relatively warmer air. Cold air wedges under warm
air, pushing it up. Temperature and humidity
decrease, pressure decreases with approach of
front and increases after passage, wind shifts
clockwise. - ....ANSWER...Cold Front
Moves an average speed of 15 knots. -
....ANSWER...Slow moving cold front
Moves an average speed of 25 to 30 knots. -
....ANSWER...Fast moving cold front
Average speed is 10 knots, wind shifts clockwise
(from south east to southwest), Precipitation as
much as 300 miles in advance, fog is commonly
ahead of a warm front. - ....ANSWER...Warm Front
Occur when a cold front overtakes a warm front.
One is lifted aloft, and the warm air between the
fronts is shut off from the earth's surface. Cold
CURRENTLY TESTING
COMPLETE EXAM QUESTIONS
WITH DETAILED VERIFIED
ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED
A+
An unexpected change in wind speed and/or
direction resulting in a tearing or shearing effect.
Can exist horizontally or vertically. -
....ANSWER...Wind Shear
A highly localized, high-speed downburst of air,
existing for short periods during the life of the
thunderstorm. Typically less than one mile in
diameter, can extend to approximately 2.5 miles in
diameter. - ....ANSWER...Microburst
A cloud resting on the earth's surface, one of the
most hazardous weather phenomena known to
aviation. Relative humidity is the amount of water
,vapor in the air, and expressed as a percentage. -
....ANSWER...Fog
The temperature to which air must be cooled for
saturation to occur (Saturation being the maximum
amount of water vapor the air can hold, 100% relative
humidity). - ....ANSWER...Dew Point
Radiation, Advection, Upslope, Steam, and Frontal. -
....ANSWER...Types of Fog
Surface. - ....ANSWER...Rain rarely reduces ______
visibility.
Sharply. - ....ANSWER...Freezing precipitation _____
reduces the pilot's vision.
Any huge body of air whose physical properties
(temperature and moisture) are horizontally uniform
level for level. - ....ANSWER...Air Masses
Formed when a large body of air assumes all
properties of temperature and moisture while
resting over its "source region." Best source regions
,are the large snow and ice covered polar regions,
cold northern oceans, tropical oceans, and large
desert areas. - ....ANSWER...Formation of air masses
Cumuliform clouds, showery precipitation, rough air
(turbulence), good visibility (except during
precipitation). - ....ANSWER...Unstable air in air
masses
Stratiform clouds and fog, continuous precipitation,
smooth air, fair to poor visibility. -
....ANSWER...Stable air in air masses
West to East. - ....ANSWER...General motion of air
masses in the U.S. is...
500 - 700. - ....ANSWER...Air masses generally move
how many miles a day?
The weight of the atmosphere. - ....ANSWER...Cold air
masses move more rapidly than warm due to...
, Defined as a boundary or line of discontinuity
separating two different air masses. -
....ANSWER...Fronts
Occurs when cold air replaces a region occupied by
relatively warmer air. Cold air wedges under warm
air, pushing it up. Temperature and humidity
decrease, pressure decreases with approach of
front and increases after passage, wind shifts
clockwise. - ....ANSWER...Cold Front
Moves an average speed of 15 knots. -
....ANSWER...Slow moving cold front
Moves an average speed of 25 to 30 knots. -
....ANSWER...Fast moving cold front
Average speed is 10 knots, wind shifts clockwise
(from south east to southwest), Precipitation as
much as 300 miles in advance, fog is commonly
ahead of a warm front. - ....ANSWER...Warm Front
Occur when a cold front overtakes a warm front.
One is lifted aloft, and the warm air between the
fronts is shut off from the earth's surface. Cold
