CISEC Exam Latest Update 2024-2025 Actual Exam from Credible Sources with 120 Questions and Verified Correct Answers Golden Ticket to Guaranteed A+ Verified by Professor
"Check structures" as an Erosion Control measure. - CORRECT ANSWER: Top of the downstream structure MUST be IN-LINE with the Bottom of the upstream structure to minimize erosion.
"Sump" conditions - CORRECT ANSWER: when water comes to a low point and *captures* runoff
Basin divides - CORRECT ANSWER: Separates flows
-water that goes from low point to high. To extend the time of concentration
Bix Box Projects - CORRECT ANSWER: -commercial buildings
-mass grading and mass choas -highly visible w/ fairly large footprint
Cellular confinements - CORRECT ANSWER: Rigid plastic structure where soil can be placed into for vegetative establishment.
CWA Penalty Types - CORRECT ANSWER: Adminstrative
Class I. Neglegent Class II. Knowlingly = greater fines
Diversion Channel and Berms - CORRECT ANSWER: an E.C. method used to direct
runoff to a specific location
- / 3
Inspection:
- Will runoff remain within the diversion channel?
- Are the embankements stabilized?
- Is the discharge area stabilized?
ECB and TRM - CORRECT ANSWER: Erosion Control Blanket and Turf Reinforcement
Mats
- RECB/ECB = usually put on hillsides
- TRM = usually put on channels
Inspect:
- Has seed been planted before laying the blanket?
- Is the material anchored in a trench?
- Do sufficient staples exist (2 in. apart?)
- Are the edges secure (w staples)?
- Can you pull up the TRM 6-12'? = Not good
Establishing Vegetation - CORRECT ANSWER: #1 method for E.C.
- Delineate area carefully!
- Vegetative Buffer Strip: used to delineate areas of no construction and sensitive
areas. Also traps sediment in runoff waters.
- Installing SOD: Instant erosion control, but requires moisture and proper installation.
Flocculant Treatment System Types - CORRECT ANSWER: 1. Liquid Treatment
System - water pumped from SCS and mixed w flocculant in a treatment chamber then sent to a capture system where treated water can be discharged 2 / 3
- Solid Treatment System - runoff dissolves o soild flocculant "block"
-may or may not have a treatment chamber
Flocculants - CORRECT 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
Gabions - CORRECT ANSWER: Steel mesh cages filled with small rocks, absorb wave
energy.
Hard Armoring - CORRECT ANSWER: Using rip rap/ rock on hillsides
-Are animals borrowing in it?
- Is sediment accumulating on rocks?
- Is the rock being undercut or collapsing?
Inspecting Area Drains / Rock Barriers - CORRECT ANSWER: Is the area drain in a
sump?
Rock barriers around area drain:
- Does 1.5 to 2 in. diameter rock exist around? Appropriate size rocks?
- / 3