Meteorology

what feature is associated with a temperature inversion: A- a stable layer of air B- an unstable layer of air C- air mass thunderstorms

A- a stable layer of air

a temperature inversion will normally form only: A- in stable air B- in unstable air C- when a stratiform layer merges with a cumuliform mass

A- in stable air

the most frequent type of ground- or surface- based temperature inversion is that produced by: A- radiation on a clear, relatively still night B- warm air being lifted rapidly aloft in the vicinity of mountainous terrain C- the movement of colder air under warm air, or the movement of warm air over cold air

A- radiation on a clear, relatively still night

which weather conditions should be expected beneath a low-level temperature inversion layer when the relative humidity is high: A- smooth air and poor visibility due to fog, haze, or low clouds B- light wind shear and poor visibility due to haze and light rain C- turbulent air and poor visibility due to fog, low stratus-type clouds, and showery precipitation

A- smooth air and poor visibility due to fog, haze, or low clouds

The primary cause of all changes in the Earth's weather is: A- variation of solar energy received by the Earth's regions B- changes in air pressure over the Earth's surface C- movement of the air masses

A- variation of solar energy received by the Earth's regions

if the air temperature is +8 degrees C at an elevation of 1,350 feet and a standard (average) temperature lapse rate exists, what will be the approximate freezing level? A- 3,350 feet MSL B- 5,350 feet MSL C- 9,350 feet MSL

B- 5,350 feet MSL

what causes surface winds to flow across the isobars at an angle rather than parallel to the isobars: A- coriolis force B- surface friction C- the greater density of the air at the surface

B- surface friction

the strength and location of the jet stream is normally: A- stronger and farther north in winter B- weaker and farther north in the summer c- stronger and farther north in the summer

B-weaker and farther north in the summer

the average height of the troposphere in the middle latitudes is: A- 20,000 feet B-25,000 feet C- 37,000 feet

C- 37,000 feet

a jet stream is defined as wind of: A- 30 knots or greater B- 40 knots or greater C- 50 knots or greater

C- 50 knots or greater

How much colder than standard temperature is the forecast temperature at 9,000 feet, as indicated in the following excerpt from the Winds and Temperature Aloft Forecast? FT 6000 9000 0737-04 1043-10 A- 3 degrees C B- 10 degrees C C- 7 degrees C

C- 7 degrees C

which feature is associated with the tropopause: A- absence of wind and turbulent conditions B- absolute upper limit of cloud formation C- abrupt change in temperature lapse rate

C- Abrupt change in temperature lapse rate

a common type of ground or surface based temperature inversion is that which is produced by: A- warm air being lifted rapidly aloft in the vicinity of mountainous terrain B- the movement of the colder air over warm air, or the movement of warm air under cold air C- ground radiation on clear, cool nights when the wind is light

C- ground radiation on clear, cool nights when the wind is light

A characteristic of the stratosphere is: A- an overall decrease of temperature with an increase in altitude B- a relatively even base altitude of approximately 35,000 feet C- relatively small changes in temperature with an increase in altitude

C- relatively small changes in temperature with an increase in altitude