CESSWI Exam || 100% Correct Solutions.
What are the soil classifications based off of? correct answers Percent of sand, silt, and clay
present in soil
How many soil texture classifications are there? correct answers 12
What are the hydrologic soil groups classified based off of? correct answers Infiltration rates
What are the hydrologic soil groups? correct answers A, B, C, D
What are the soil horizons classified based off of? correct answers Primary material (eg clay,
organic matter, minerals, parent material (rock), bedrock)
What are the master horizons? correct answers O, A, E, B, C, R
What are the four types of erosion? correct answers Raindrop, sheet, rill & gully, streambank
Define soil detachment correct answers the dislodgment of soil particles from the soil mass
through erosive forces
Define sediment transport correct answers the movement of sediment particles (by water or
wind) once they have been detached
Define erosion correct answers the weathering down of parent material and the detachment by
the action of wind, water, ice and gravity
What is the erosion rate of soil for a site by water dependent on? correct answers on-site
characteristics, soil physical and chemical variables, and land management practices
what is sediment deposition (sedimentation)? correct answers the process by which soil particles
that have been suspended within the water or air column settle back to the ground surface
what equation is used to estimate the annual average erosion rate for a site? correct answers
RUSLE
Brain Break! (answer a question completely unrelated to stormwater)
What is the largest desert in the world? correct answers Antarctica Desert (don't believe me?
google it!)
what can sedimentation be a result of? correct answers reduced flow rates/flow velocities, higher
frictional forces, increased sediment load within runoff
site characteristics that directly impact the likelihood for soils to erode: correct answers soil type,
vegetative cover, topography, climate
,define hydrology correct answers the study of water, including its occurrence, circulation,
distribution, chemical and physical properties, and the reaction of those properties to the
environment
parameters that characterize the hydrology of a site include; correct answers precipitation,
evaporation, infiltration, runoff
the hydrologic cycle describes the movement of water... correct answers above the surface, on
the surface, and below the surface
the hydrologic cycle is a... correct answers continuous process (no start or end)
water will exist in all 3 states: correct answers vapor, liquid, solid
define watershed (NOAA def): correct answers a land area that channels rainfall and snowmelt to
creeks, streams, and rivers, and eventually to outflow points such as reservoirs, bays, and the
ocean
A specified rainfall depth over a specified duration correct answers design storm
A land area that channels rainfall and snowmelt to creeks, streams, and rivers, and eventually to
outflow points such as reservoirs, bays, and the ocean correct answers watershed
define slope correct answers slope/gradients is defined as a number, typically a %, that describes
the direction and steepness of a surface
typical method of slope calculation correct answers rise over run ( slope% = rise/run )
*to convert the decimal to a whole number, multiply the slope % by one hundred
other ways of expressing slope include... correct answers slope degrees & slope ratios
slope ratios correct answers
_________ ___________ look at the angle of the slope using a protractor with 90 degrees being
completely vertical and 0 degrees being completely horizontal. A 45 degree slope is one (1)
horizontal unit to (1) vertical unit. correct answers slope degrees
__________ __________ provides the slope in horizontal units to vertical units. For instance, a
three (3) ft horiz. run with a one (1) ft vert. change would be expressed as a 3:1 slope. correct
answers slope ratios
____________ is the study of fluids, including both fluids in motion and fluids at rest. correct
answers Hydrology
, Open channel flow is... correct answers concentrated flow within a defined cross-section when
the surface of the water is exposed to the atmosphere (eg channels, canals, streams).
When designing a culvert and drainage system, a designer should ensure that the downstream
conveyance feature... correct answers has the capacity to convey the pipe flows without
overtopping or causing erosion.
flow control options include... correct answers weir flow, orifice flow
Brain Break! (answer a question completely unrelated to stormwater)
When did many US schools stop teaching cursive? correct answers 2010 (stupid Common Core)
the 1972 amendments to the Federal Water Pollution Control Act are commonly referred to as...
correct answers the Clean Water Act (CWA)
What is the primary federal statute regulating protection of the nations waters? correct answers
Clean Water Act
The Clean Water Act aims to... correct answers prevent and reduce pollution & restore and
maintain the chemical, physical, and biological integrity of our nations waters
list of waterbodies that unable to meet water quality standards correct answers 303(d) list
What should be the first consideration when going on site? correct answers safety
An inspector should be aware that a site is ___________ and always ____________. correct
answers dynamic, changing
What can you do to make sure operators have seen you? correct answers make eye contact, wave
T/F: Inspector should ensure that there is secondary containment for all hazardous materials and
liquids. correct answers True
In case of a spill onsite, what may be required?
a. A procedure for reporting spills
b. A spill kit
c. A change of pants
d. both a & b correct answers a & b
Its the inspectors responsibility to prepare for the _________________ _________________,
such as weather, ticks, mosquitos, bees, snakes, and poisonous plants. correct answers
environmental conditions
PPE stands for correct answers Personal Protection Equipment
What are the soil classifications based off of? correct answers Percent of sand, silt, and clay
present in soil
How many soil texture classifications are there? correct answers 12
What are the hydrologic soil groups classified based off of? correct answers Infiltration rates
What are the hydrologic soil groups? correct answers A, B, C, D
What are the soil horizons classified based off of? correct answers Primary material (eg clay,
organic matter, minerals, parent material (rock), bedrock)
What are the master horizons? correct answers O, A, E, B, C, R
What are the four types of erosion? correct answers Raindrop, sheet, rill & gully, streambank
Define soil detachment correct answers the dislodgment of soil particles from the soil mass
through erosive forces
Define sediment transport correct answers the movement of sediment particles (by water or
wind) once they have been detached
Define erosion correct answers the weathering down of parent material and the detachment by
the action of wind, water, ice and gravity
What is the erosion rate of soil for a site by water dependent on? correct answers on-site
characteristics, soil physical and chemical variables, and land management practices
what is sediment deposition (sedimentation)? correct answers the process by which soil particles
that have been suspended within the water or air column settle back to the ground surface
what equation is used to estimate the annual average erosion rate for a site? correct answers
RUSLE
Brain Break! (answer a question completely unrelated to stormwater)
What is the largest desert in the world? correct answers Antarctica Desert (don't believe me?
google it!)
what can sedimentation be a result of? correct answers reduced flow rates/flow velocities, higher
frictional forces, increased sediment load within runoff
site characteristics that directly impact the likelihood for soils to erode: correct answers soil type,
vegetative cover, topography, climate
,define hydrology correct answers the study of water, including its occurrence, circulation,
distribution, chemical and physical properties, and the reaction of those properties to the
environment
parameters that characterize the hydrology of a site include; correct answers precipitation,
evaporation, infiltration, runoff
the hydrologic cycle describes the movement of water... correct answers above the surface, on
the surface, and below the surface
the hydrologic cycle is a... correct answers continuous process (no start or end)
water will exist in all 3 states: correct answers vapor, liquid, solid
define watershed (NOAA def): correct answers a land area that channels rainfall and snowmelt to
creeks, streams, and rivers, and eventually to outflow points such as reservoirs, bays, and the
ocean
A specified rainfall depth over a specified duration correct answers design storm
A land area that channels rainfall and snowmelt to creeks, streams, and rivers, and eventually to
outflow points such as reservoirs, bays, and the ocean correct answers watershed
define slope correct answers slope/gradients is defined as a number, typically a %, that describes
the direction and steepness of a surface
typical method of slope calculation correct answers rise over run ( slope% = rise/run )
*to convert the decimal to a whole number, multiply the slope % by one hundred
other ways of expressing slope include... correct answers slope degrees & slope ratios
slope ratios correct answers
_________ ___________ look at the angle of the slope using a protractor with 90 degrees being
completely vertical and 0 degrees being completely horizontal. A 45 degree slope is one (1)
horizontal unit to (1) vertical unit. correct answers slope degrees
__________ __________ provides the slope in horizontal units to vertical units. For instance, a
three (3) ft horiz. run with a one (1) ft vert. change would be expressed as a 3:1 slope. correct
answers slope ratios
____________ is the study of fluids, including both fluids in motion and fluids at rest. correct
answers Hydrology
, Open channel flow is... correct answers concentrated flow within a defined cross-section when
the surface of the water is exposed to the atmosphere (eg channels, canals, streams).
When designing a culvert and drainage system, a designer should ensure that the downstream
conveyance feature... correct answers has the capacity to convey the pipe flows without
overtopping or causing erosion.
flow control options include... correct answers weir flow, orifice flow
Brain Break! (answer a question completely unrelated to stormwater)
When did many US schools stop teaching cursive? correct answers 2010 (stupid Common Core)
the 1972 amendments to the Federal Water Pollution Control Act are commonly referred to as...
correct answers the Clean Water Act (CWA)
What is the primary federal statute regulating protection of the nations waters? correct answers
Clean Water Act
The Clean Water Act aims to... correct answers prevent and reduce pollution & restore and
maintain the chemical, physical, and biological integrity of our nations waters
list of waterbodies that unable to meet water quality standards correct answers 303(d) list
What should be the first consideration when going on site? correct answers safety
An inspector should be aware that a site is ___________ and always ____________. correct
answers dynamic, changing
What can you do to make sure operators have seen you? correct answers make eye contact, wave
T/F: Inspector should ensure that there is secondary containment for all hazardous materials and
liquids. correct answers True
In case of a spill onsite, what may be required?
a. A procedure for reporting spills
b. A spill kit
c. A change of pants
d. both a & b correct answers a & b
Its the inspectors responsibility to prepare for the _________________ _________________,
such as weather, ticks, mosquitos, bees, snakes, and poisonous plants. correct answers
environmental conditions
PPE stands for correct answers Personal Protection Equipment
