CISEC EXAM NEWEST ACTUAL EXAM WITH
COMPLETE 105 QUESTIONS AND DETAILED
ANSWERS GRADED A | BRAND NEW!!!
What is a hydrograph? - ✔✔✔ Correct Answer > Picture of
runoff
X-Axis: flow in cubic feet per second (cfs)
Y-Axis: time in minutes
Peak = maximum flow during runoff event
What are sources of water - ✔✔✔ Correct Answer >
Precipitation (rain, snow, hail, sleet)
What is a sedigraph? - ✔✔✔ Correct Answer > Represents
sediment discharge
X-Axis: sediment yield rate
Y-Axis: time
What are some examples of hydrocarbon materials? - ✔✔✔
Correct Answer > Biofuels (gas)
,Adhesives
Pesticides
Inspecting fiber rolls - ✔✔✔ Correct Answer > Is there a barrier
depression? (Check for backfill materials US)
Correct diameter used?
Are stakes holding it in place? Is spacing of stakes correct?
Will barrier contain runoff at ends too? ("Smile")
Does barrier divert runoff to a single discharge point? (bad)
Never put fiber rolls on bare ground.
Efficiency: weak spots exist at point where two fiber rolls meet
Rock check structures: Purpose + Requirements - ✔✔✔ Correct
Answer > For concentrated flows:
Slows down runoff to allow for deposition
Captures suspended particles along the way
Erosion control IF spaced properly
Must have a low point (for overflows) and end points must be
higher than overflow ("Smile")
, Check structures as an EC measure - ✔✔✔ Correct Answer >
Top of the DS structure must be in-line with the bottom of the
US structure to minimize erosion
Inspecting inlet barriers - ✔✔✔ Correct Answer > Look for
debris on top of inlet barrier (indicates overflow occurred)
Look for sedimentation behind the barrier (lack of
sedimentation entirely or uniformly indicates a failure to block
at that location)
On grade conditions - ✔✔✔ Correct Answer > When runoff is
diverted AWAY from drain inlet
Inspecting curb and gutter barrier bags - ✔✔✔ Correct Answer
> Are appropriate sized rocks used in bags?
Is there overflow around the bag or underneath?
Is the bag too full/compact? Possible tearing?
Is there proper spacing between bag and inlet?
Sediment Containment Systems (SCS) - ✔✔✔ Correct Answer >
Purpose: Contain runoff long enough for deposition of
suspended particles
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