ATC BASICS Block 4 CORRECT 100%
Where do virtually all aircraft fly? - ANSWER Troposphere and Lower Stratosphere
What is the name of the lowest layer of the Earth's Atmosphere? - ANSWER
Troposphere
The Troposphere contains almost all ____ and ____. - ANSWER Clouds and
Precipitation
Temperature generally ____ with altitude - ANSWER Decreases
An INCREASE in temperature with altitude is abnormal and defined as _____. -
ANSWER Inversion
The AVERAGE vertical depth of the Troposphere in feet? - ANSWER 36,000
Depth of the Troposphere at the EQUATOR in feet? - ANSWER 65,000
Depth of the Troposphere at the POLES in feet - ANSWER 20,000
What is the name of the transition boundary between the Troposphere and
Stratosphere? - ANSWER Tropopause
The Stratosphere extends from the Tropopause up to ___ miles above the Earth's
Surface - ANSWER 31
Unlike the Troposphere, temperature _____ with altitude in the Stratosphere. -
ANSWER Increases
Which lower levels of the Earth's atmosphere is considered a "stable layer, generally
devoid of significant weather"? - ANSWER Stratosphere
Describe "lapse rate" - ANSWER Decrease of 2 Degrees C (3.5 F) per 1,000 ft
A migrating stream of high speed winds present at high altitudes describes a _____. -
ANSWER Jet Stream
Two types of jet streams - ANSWER Polar, Subtropical
What degrees of latitude is the POLAR jet stream located? - ANSWER 30-60 Degrees
latitude
What degrees of latitude is the Subtropical jet stream located? - ANSWER 20-40
Degrees latitude
, What type of TURBULENCE do Jet stream often produce? - ANSWER Clear Air
Turbulence
Water Vapor is defined as _____ - ANSWER Gaseous form of water
The Phase transition by which LIQUID is changed to GAS is defined as _____ -
ANSWER Evaporation
________ _________ constitutes only a small percentage of the atmosphere (trace
amounts to 4%) but is the raw material for clouds and precipitation. - ANSWER Water
Vapor
The air's capacity to hold water vapor is directly related to its ________ - ANSWER
Temperature
____ _____ can hold more water vapor than ____ _____. - ANSWER Warm Air; cold
Air
The maximum possible quantity of water vapor that a parcel of air can hold at any given
temperature and pressure is defined as ________. - ANSWER Saturation
"__________" means a air parcel contains ALL the water vapor it can hold. - ANSWER
Saturated
"_________" means an air parcel has the capacity to hold more water vapor. -
ANSWER Unsaturated
A "High Dew Point" means that there is a higher quantity of _______ _________. -
ANSWER Water Vapor
RATIO expressed in %; indicates the amount of water vapor actually in the air parcel
compared to the amount of water vapor the air could hold defines _________. -
ANSWER Relative humidity
The difference between an air parcel's TEMPERATURE and its DEW POINT
temperature is commonly referred to as the ______. - ANSWER Temperature/Dew
Point Spread
When the temperature/dew point spread DECREASES, the relative humidity
_________. Which indicates the parcel of air is becoming more _________. - ANSWER
Increases; saturated
When the temperature/dew point spread DECREASES to ZERO the air becomes
________ and ________ begin to form. - ANSWER Saturated; clouds
Where do virtually all aircraft fly? - ANSWER Troposphere and Lower Stratosphere
What is the name of the lowest layer of the Earth's Atmosphere? - ANSWER
Troposphere
The Troposphere contains almost all ____ and ____. - ANSWER Clouds and
Precipitation
Temperature generally ____ with altitude - ANSWER Decreases
An INCREASE in temperature with altitude is abnormal and defined as _____. -
ANSWER Inversion
The AVERAGE vertical depth of the Troposphere in feet? - ANSWER 36,000
Depth of the Troposphere at the EQUATOR in feet? - ANSWER 65,000
Depth of the Troposphere at the POLES in feet - ANSWER 20,000
What is the name of the transition boundary between the Troposphere and
Stratosphere? - ANSWER Tropopause
The Stratosphere extends from the Tropopause up to ___ miles above the Earth's
Surface - ANSWER 31
Unlike the Troposphere, temperature _____ with altitude in the Stratosphere. -
ANSWER Increases
Which lower levels of the Earth's atmosphere is considered a "stable layer, generally
devoid of significant weather"? - ANSWER Stratosphere
Describe "lapse rate" - ANSWER Decrease of 2 Degrees C (3.5 F) per 1,000 ft
A migrating stream of high speed winds present at high altitudes describes a _____. -
ANSWER Jet Stream
Two types of jet streams - ANSWER Polar, Subtropical
What degrees of latitude is the POLAR jet stream located? - ANSWER 30-60 Degrees
latitude
What degrees of latitude is the Subtropical jet stream located? - ANSWER 20-40
Degrees latitude
, What type of TURBULENCE do Jet stream often produce? - ANSWER Clear Air
Turbulence
Water Vapor is defined as _____ - ANSWER Gaseous form of water
The Phase transition by which LIQUID is changed to GAS is defined as _____ -
ANSWER Evaporation
________ _________ constitutes only a small percentage of the atmosphere (trace
amounts to 4%) but is the raw material for clouds and precipitation. - ANSWER Water
Vapor
The air's capacity to hold water vapor is directly related to its ________ - ANSWER
Temperature
____ _____ can hold more water vapor than ____ _____. - ANSWER Warm Air; cold
Air
The maximum possible quantity of water vapor that a parcel of air can hold at any given
temperature and pressure is defined as ________. - ANSWER Saturation
"__________" means a air parcel contains ALL the water vapor it can hold. - ANSWER
Saturated
"_________" means an air parcel has the capacity to hold more water vapor. -
ANSWER Unsaturated
A "High Dew Point" means that there is a higher quantity of _______ _________. -
ANSWER Water Vapor
RATIO expressed in %; indicates the amount of water vapor actually in the air parcel
compared to the amount of water vapor the air could hold defines _________. -
ANSWER Relative humidity
The difference between an air parcel's TEMPERATURE and its DEW POINT
temperature is commonly referred to as the ______. - ANSWER Temperature/Dew
Point Spread
When the temperature/dew point spread DECREASES, the relative humidity
_________. Which indicates the parcel of air is becoming more _________. - ANSWER
Increases; saturated
When the temperature/dew point spread DECREASES to ZERO the air becomes
________ and ________ begin to form. - ANSWER Saturated; clouds
