CISEC Exam Questions With Correct
Answers
Who is the "operator"? Also the LRP. - ANSWER-Usually the OWNER of the site, not
the contractor, unless authorized by the owner to general contractor to have day-to-day
operational control!
When do you need permit coverage? - ANSWER-Required from start to end of project.
"End" being the final vegetative/non-vegetative (concrete) stabilization occuring.
For any project one acre or greater.
Large Land Development - ANSWER--strips off all existing vegetation a.k.a site carving
-usually on hillsides and steep slopes
-installation of untilities that tear up large areas of land
Vertical Projects - ANSWER-- Homebuilding, smaller residence construction projects
-usually multiple subcontractors
-requires lots of housekeeping = mass choas
Bix Box Projects - ANSWER--commercial buildings
-mass grading and mass choas
-highly visible w/ fairly large footprint
Linear Projects - ANSWER--roadways, utilities, and stream corridors
-long narrow sites and mass choas
-limites site access and continually changing (high activity)
What is erosion? - ANSWER-The process by which soil particle get displaced by the act
of wind of water.
What are the three types of Wind Erosion? - ANSWER-1. Creep - causes sand dunes
<10%
-large particle that roll across a terrain
2. Saltation - bouncing particles that DISLODGE more particles, then fall back down
~50-80%
- stay relatively close to ground
3. Suspesion - suspended way up into the atmosphere
~ 5-25%
-light weight soil particles dusted in the air
Which method of wind erosion moves the most soil? - ANSWER-Saltation
, What is sedimentation? - ANSWER-The process by which eroded soil particles in water
or air are deposited in NEW locations.
Rate soils from Most Erodible to Least. - ANSWER-1. Silt = big particle/more erodible
k~0.57
2. Sand/Loam = medium
3. Clay = very small particles/least erodible k~0.10
Which direction does water flow? - ANSWER-High points to low.
Through the mouth of the "V" from the back- up.
Basin divides - ANSWER-Separates flows
-water that goes from low point to high. To extend the time of concentration
What is a hydrograph? - ANSWER-a "picture" of runoff
x-axis = time in minutes
y-axis = flow in cubic ft/sec
The volume of runoff is everything under the curve (somewhat bell-shaped) - similar to a
sedigraph
Sedimentation occurs at tail-end when flows are decreasing
Flocculants - ANSWER-chemicals added to a mixture to make suspended particles
clump together
created larger particles that fall rapidly
method for reducing turbidity
Types of flocculants:
Cationic = dangerous for fish/can suffocate
Anionic = ok for fish
Who decides the necessary BMPs in a SWPPP/for a project? - ANSWER-The
DEVELOPER (not inspector)
What are the types of water erosion? - ANSWER-Raindrop erosion
Sheet erosion
Rill and Gully erosion
Stream and Channel erosion
LDP - ANSWER-Land Developing Projects - altering landscape for projects such as
agriculture or housing ect.
Answers
Who is the "operator"? Also the LRP. - ANSWER-Usually the OWNER of the site, not
the contractor, unless authorized by the owner to general contractor to have day-to-day
operational control!
When do you need permit coverage? - ANSWER-Required from start to end of project.
"End" being the final vegetative/non-vegetative (concrete) stabilization occuring.
For any project one acre or greater.
Large Land Development - ANSWER--strips off all existing vegetation a.k.a site carving
-usually on hillsides and steep slopes
-installation of untilities that tear up large areas of land
Vertical Projects - ANSWER-- Homebuilding, smaller residence construction projects
-usually multiple subcontractors
-requires lots of housekeeping = mass choas
Bix Box Projects - ANSWER--commercial buildings
-mass grading and mass choas
-highly visible w/ fairly large footprint
Linear Projects - ANSWER--roadways, utilities, and stream corridors
-long narrow sites and mass choas
-limites site access and continually changing (high activity)
What is erosion? - ANSWER-The process by which soil particle get displaced by the act
of wind of water.
What are the three types of Wind Erosion? - ANSWER-1. Creep - causes sand dunes
<10%
-large particle that roll across a terrain
2. Saltation - bouncing particles that DISLODGE more particles, then fall back down
~50-80%
- stay relatively close to ground
3. Suspesion - suspended way up into the atmosphere
~ 5-25%
-light weight soil particles dusted in the air
Which method of wind erosion moves the most soil? - ANSWER-Saltation
, What is sedimentation? - ANSWER-The process by which eroded soil particles in water
or air are deposited in NEW locations.
Rate soils from Most Erodible to Least. - ANSWER-1. Silt = big particle/more erodible
k~0.57
2. Sand/Loam = medium
3. Clay = very small particles/least erodible k~0.10
Which direction does water flow? - ANSWER-High points to low.
Through the mouth of the "V" from the back- up.
Basin divides - ANSWER-Separates flows
-water that goes from low point to high. To extend the time of concentration
What is a hydrograph? - ANSWER-a "picture" of runoff
x-axis = time in minutes
y-axis = flow in cubic ft/sec
The volume of runoff is everything under the curve (somewhat bell-shaped) - similar to a
sedigraph
Sedimentation occurs at tail-end when flows are decreasing
Flocculants - ANSWER-chemicals added to a mixture to make suspended particles
clump together
created larger particles that fall rapidly
method for reducing turbidity
Types of flocculants:
Cationic = dangerous for fish/can suffocate
Anionic = ok for fish
Who decides the necessary BMPs in a SWPPP/for a project? - ANSWER-The
DEVELOPER (not inspector)
What are the types of water erosion? - ANSWER-Raindrop erosion
Sheet erosion
Rill and Gully erosion
Stream and Channel erosion
LDP - ANSWER-Land Developing Projects - altering landscape for projects such as
agriculture or housing ect.
