BANK CURRENTLY TESTING
ACTUAL EXAM QUESTIONS WITH
DETAILED ANSWERS WITH
STUDY GUIDE EXPERT VERIFIED
FOR GUARANTEED
PASS/ALREADY GRADED A+
A conditionally unstable atmosphere is stable with respect to unsaturated
air and unstable with respect to saturated air. - ANSWER True
Warm saturated air produces more liquid water than cold saturated air. -
ANSWER True
The rate at which the temperature changes inside a descending (or rising)
parcel of saturated air is called the ____ rate. - ANSWER moist adiabatic
In a conditionally unstable atmosphere, the environmental lapse rate will
be greater than the moist adiabatic rate and ____ the dry adiabatic rate. -
ANSWER less than
Sinking air sometimes cools adiabatically. - ANSWER False
A rising parcel of air that does not exchange heat with its surroundings is
an example of ____. - ANSWER an adiabatic process
What is the dry adiabatic lapse rate? - ANSWER 10 degrees C per 1000
meters
What is the wet adiabatic lapse rate? - ANSWER 5 degrees C per 1000
meters
,What are constant pressure surfaces? - ANSWER Constant pressure at all
points
In regard to constant pressure surfaces, where do higher heights form? -
ANSWER Over warm air
In regard to constant pressure surfaces, what do high heights correspond
to region wise? - ANSWER Regions of high pressure
In regard to constant pressure surfaces, what will happen to the wind if
the height gradient gets stronger? - ANSWER Wind will get stronger
What height on the standard atmosphere relates to the common pressure
level of 200mb? - ANSWER 39,000ft
What height on the standard atmosphere relates to the common pressure
level of 250mb? - ANSWER 34,500ft
What height on the standard atmosphere relates to the common pressure
level of 300mb? - ANSWER 30,000ft
What height on the standard atmosphere relates to the common pressure
level of 500mb? - ANSWER 18,000ft
What height on the standard atmosphere relates to the common pressure
level of 700mb? - ANSWER 10,000ft
What height on the standard atmosphere relates to the common pressure
level of 850mb? - ANSWER 5,000ft
How do heights on a constant pressure surface correspond to pressure
features? - ANSWER By contour lines
How are the necessary data (i.e. pressure, wind, temperature, and
humidity with height) obtained for creating constant pressure charts?
How often are the data obtained, and at what times daily? - ANSWER
Obtained by Radiosonde Balloon launches, which are launched daily,
twice a day, at 00 and 12Z.
How do you convert from UTC to MST? - ANSWER Subtract 7 from
the utc time to get your mst time
,What are the six causes of vertical motion in the atmosphere? -
ANSWER 1. Orography (topography)
2. Fronts
3. Convection
4. Convergence/Divergence
5. Wave motion
6. Turbulence
What is convergence? - ANSWER Occurs when there is more outflow
from than inflow to a region
What is divergence? - ANSWER Occurs when there is more outflow
from than inflow to a region
What type of pressure change does convergence lead to? - ANSWER An
increase
What type of pressure change does divergence lead to? - ANSWER A
decrease
What is Orographic (topographic) lifting? - ANSWER Consists of
upstream lifting, upslope lifting, Lee Lifting, and convergence
What is upstream lifting? - ANSWER Caused by convergence upstream
from mountains
What is upslope lifting? - ANSWER Caused by air being forced up a
mountain slope
What is lee lifting? - ANSWER Caused by convergence on the
downwind side
What are fronts? - ANSWER A surface boundary between two air
masses that results in warm air rising
What is convection? - ANSWER Caused by buoyancy, a lifting force
proportional to differences in air density. Occurs in unstable air. Rising
air in warm plumes (bubbles) called thermals. Thunderstorms form when
humid and unstable enough
What are wave motions? - ANSWER Are observed downwind from
mountains or thunderstorm systems. Called gravity waves, lee waves, and
mountain waves
, What is turbulence? - ANSWER Overturning air motions
What are different types of turbulence? - ANSWER Mechanical
Turbulence, Mountain Wave Turbulence, Thermal Turbulence,
Turbulence near thunderstorms, and Clear-air turbulence.
What is Clear-Air Turbulence? - ANSWER Above and below jet streams
What is Mechanical Turbulence? - ANSWER On windy days, over
rough terrain
What is thermal turbulence? - ANSWER From unstable air near ground
What is mountain wave turbulence? - ANSWER From breaking
mountain waves
What 4 sources of vertical motions may generate precipitation? -
ANSWER Convergence/divergence, orography (topography), fronts, and
convection
Why does the wind converge into a surface low? - ANSWER Due to
rising motion and pressure rising
Why does the wind diverge from a surface high? - ANSWER Due to
sinking motion and pressure dropping
What causes the surface pressure to increase? - ANSWER When upper
level convergence exceeds surface divergence
What causes the surface pressure to decrease? - ANSWER When upper
level divergence exceeds surface convergence
What weather conditions are associated with high and low pressure
systems? - ANSWER High pressure is associated with clear skies and
nice weather where low pressure is associated with storms and
precipitation
What is stable air? - ANSWER ALR cooling exceeds ELR (air is NOT
rising)
What is unstable air? - ANSWER ELR coolings exceeds ALR (Air is
rising)