ESS 424 Final Review Exam with
Questions and Correct Answers 2025
What is the approximate percentage of freshwater out of all water on the earth? -
CORRECT ANSWERS 3%
What are the Properties of water - CORRECT ANSWERS High specific heat
High surface tension- Polar
Density Anomaly
What component of the Hydrologic cycle describes the movement of moisture from a free-
water surface into the atmosphere? - CORRECT ANSWERS Evapotranspiration
What are the driving forces of the hydrologic cycle? - CORRECT ANSWERS Gravity
Earths rotation
Sun
What portion of the earths surface is covered in water? - CORRECT ANSWERS 75%
which hydrologic cycle element acts as a valve essentially controlling how fast water
moves? - CORRECT ANSWERS Infiltration
When air is warmer we can expect to get a drop in temp of how many degrees F per 1000ft
in elevation - CORRECT ANSWERS 5.5
Which form of lifting is most responsible for the sporadic, intense short-duration summer
storms in east TN - CORRECT ANSWERS Convective
Which of the following best describes the type of rainfall produced when a cold front moves
into a warm front? - CORRECT ANSWERS Heavy continuos rainfall
To determine the effect of rainfall on a chokepoint what aspect of a precipitation event
would be the most useful? - CORRECT ANSWERS Total Rainfall intensity
Rain fall intensity will________ with an inc. in are of interest. - CORRECT ANSWERS Go
down
Rain fall intensity will ______ with an inc. in time period of interest - CORRECT ANSWERS
go down
, For general meteorology, the weather bureau suggests a rainfall gauge density of one
station every _______ km^2 - CORRECT ANSWERS 600
Under ideal circumstances i would like to set up a network of rain gauges - CORRECT
ANSWERS on a pattern
A typical "type II" storm event places approx. what % of the total rainfall depth during the
middle 10% of the storm. - CORRECT ANSWERS 50-60%
In knoxville, over 80% of storm events have a total precipitation depth of? - CORRECT
ANSWERS 1 inch or less
Today practically speaking, we want to be able to estimate infiltration for - CORRECT
ANSWERS Low impact development
What are the 3 factors that control infiltration? - CORRECT ANSWERS Water supply at the
surface
Surface conditions
Subsurface conditions
In the green-ampt infiltration model the adhesive forces are represented by? - CORRECT
ANSWERS Sw
In the green-ampt infiltration model, over extended periods of time the infiltration rate
mathematically approaches what term?? - CORRECT ANSWERS K
What are the keys to measuring infiltration accurately in the lab or field? - CORRECT
ANSWERS Measure infiltration on a large scale
Apply water in a realistic
Measure infiltration rate over time
When considering infiltration capacity over time, the infiltration rate generally goes ______
with time and the cumulative infiltration goes______. - CORRECT ANSWERS Down, UP
When soil is very dry which force most controls the initial infiltration rate? - CORRECT
ANSWERS Adhesion/suction
In the Kostiakov-Lewis infiltration model, which of the terms is not a fit coefficient? -
CORRECT ANSWERS d,e I0
all the above
According to Knoxville stormwater manual, the minimum allowable infiltration rate for soils
is. - CORRECT ANSWERS 1/2 inch per hour
According to Poiseuille's law if i double the radius of the tube and keep all other parameters
the same, by how much do I inc. the flow rate? - CORRECT ANSWERS 16 times
Questions and Correct Answers 2025
What is the approximate percentage of freshwater out of all water on the earth? -
CORRECT ANSWERS 3%
What are the Properties of water - CORRECT ANSWERS High specific heat
High surface tension- Polar
Density Anomaly
What component of the Hydrologic cycle describes the movement of moisture from a free-
water surface into the atmosphere? - CORRECT ANSWERS Evapotranspiration
What are the driving forces of the hydrologic cycle? - CORRECT ANSWERS Gravity
Earths rotation
Sun
What portion of the earths surface is covered in water? - CORRECT ANSWERS 75%
which hydrologic cycle element acts as a valve essentially controlling how fast water
moves? - CORRECT ANSWERS Infiltration
When air is warmer we can expect to get a drop in temp of how many degrees F per 1000ft
in elevation - CORRECT ANSWERS 5.5
Which form of lifting is most responsible for the sporadic, intense short-duration summer
storms in east TN - CORRECT ANSWERS Convective
Which of the following best describes the type of rainfall produced when a cold front moves
into a warm front? - CORRECT ANSWERS Heavy continuos rainfall
To determine the effect of rainfall on a chokepoint what aspect of a precipitation event
would be the most useful? - CORRECT ANSWERS Total Rainfall intensity
Rain fall intensity will________ with an inc. in are of interest. - CORRECT ANSWERS Go
down
Rain fall intensity will ______ with an inc. in time period of interest - CORRECT ANSWERS
go down
, For general meteorology, the weather bureau suggests a rainfall gauge density of one
station every _______ km^2 - CORRECT ANSWERS 600
Under ideal circumstances i would like to set up a network of rain gauges - CORRECT
ANSWERS on a pattern
A typical "type II" storm event places approx. what % of the total rainfall depth during the
middle 10% of the storm. - CORRECT ANSWERS 50-60%
In knoxville, over 80% of storm events have a total precipitation depth of? - CORRECT
ANSWERS 1 inch or less
Today practically speaking, we want to be able to estimate infiltration for - CORRECT
ANSWERS Low impact development
What are the 3 factors that control infiltration? - CORRECT ANSWERS Water supply at the
surface
Surface conditions
Subsurface conditions
In the green-ampt infiltration model the adhesive forces are represented by? - CORRECT
ANSWERS Sw
In the green-ampt infiltration model, over extended periods of time the infiltration rate
mathematically approaches what term?? - CORRECT ANSWERS K
What are the keys to measuring infiltration accurately in the lab or field? - CORRECT
ANSWERS Measure infiltration on a large scale
Apply water in a realistic
Measure infiltration rate over time
When considering infiltration capacity over time, the infiltration rate generally goes ______
with time and the cumulative infiltration goes______. - CORRECT ANSWERS Down, UP
When soil is very dry which force most controls the initial infiltration rate? - CORRECT
ANSWERS Adhesion/suction
In the Kostiakov-Lewis infiltration model, which of the terms is not a fit coefficient? -
CORRECT ANSWERS d,e I0
all the above
According to Knoxville stormwater manual, the minimum allowable infiltration rate for soils
is. - CORRECT ANSWERS 1/2 inch per hour
According to Poiseuille's law if i double the radius of the tube and keep all other parameters
the same, by how much do I inc. the flow rate? - CORRECT ANSWERS 16 times
