CPESC Exam Questions With Correct
Answers
What |are |the |5 |factors |that |influence |erosion? |- |CORRECT |ANSWER✔✔-Soil |erodibility, |
topography, |vegetative |cover, |season, |climate |(rainfall)
What |influences |soil |erodibility? |- |CORRECT |ANSWER✔✔-Soil |texture, |structure |and |% |of |OM
How |does |vegetative |cover |influence |erodibility? |- |CORRECT |ANSWER✔✔-Top |growth |reduces |
raindrop |impact, |filters |sediment |and |slows |down |runoff |velocity; |roots |hold |mass |particles |
together
How |can |you |decrease |erodibility |in |relation |to |topography? |- |CORRECT |ANSWER✔✔-Increase |
slope |roughness
What |climate |characteristics |affect |erodibility? |- |CORRECT |ANSWER✔✔-Rainfall |intensity, |
duration |and |frequency
Why |does |frequent |rainfall |increase |erodibility? |- |CORRECT |ANSWER✔✔-The |soil |becomes |
saturated |and |no |more |water |can |infiltrate |which |increases |runoff |volume
Why |is |erosion |potential |high |in |the |spring |if |it |rains? |- |CORRECT |ANSWER✔✔-Water |can't |
infiltrate |the |frozen |subsoil |which |increases |runoff |volume
What |are |some |ways |urban |development |impacts |erosion |hazards? |- |CORRECT |ANSWER✔✔-
Changes |hydrology |(GW |flow, |drainage), |disturbs |large |amounts |of |soil, |removes |plant |cover
, BMP |considerations |for |clearing |and |grubbing? |- |CORRECT |ANSWER✔✔-Preserve |existing |
vegetation; |clear |only |what |is |required |for |immediate |construction |activity
BMP |considerations |for |mass |grading? |- |CORRECT |ANSWER✔✔-Create |principle |basins, |traps, |
barriers, |diversions |and |channels; |temporary |stabilization; |manage |concentrated |runon |and |
runoff |(water |bars)
BMP |considerations |for |site |access |& |off-hauling? |- |CORRECT |ANSWER✔✔-Stabilize |with |gravel
|and |temporary |vegetation; |limit |ingress |and |egress |points
What |are |the |3 |stages |of |inlet |construction? |- |CORRECT |ANSWER✔✔-Pipe |installation, |inlet |
construction, |inlet |backfill
BMP |considerations |of |channel |construction? |- |CORRECT |ANSWER✔✔-Monitor |weather, |install
|grade |controls, |stabilize |streambanks |early; |consider |time |of |year |(weather) |to |start |
construction |(phasing)
BMP |considerations |of |final |stabilization? |- |CORRECT |ANSWER✔✔-Immediately |apply |temp |or |
permanent |stabilization |of |disturbed |areas; |don't |allow |surface |area |to |dry |out |for |a |few |days |
before |seeding |(affects |germination)
BMP |considerations |of |vertical |construction? |- |CORRECT |ANSWER✔✔-Protect |inlets; |modify |
plan |to |show |new |conditions |and |updated |measures
What |would |have |to |be |updated |as |construction |progressed |on |the |SWPPP? |- |CORRECT |
ANSWER✔✔-Installation |and |removal |dates, |changes |in |plan |designs, |and |changes |in |BMPs
When |are |outlet |protectors |used? |Examples? |- |CORRECT |ANSWER✔✔-To |control |runoff; |
wattles, |check |dams |(energy |dissipaters) |or |thick/matted |veg, |riprap |(ground |cover)
Answers
What |are |the |5 |factors |that |influence |erosion? |- |CORRECT |ANSWER✔✔-Soil |erodibility, |
topography, |vegetative |cover, |season, |climate |(rainfall)
What |influences |soil |erodibility? |- |CORRECT |ANSWER✔✔-Soil |texture, |structure |and |% |of |OM
How |does |vegetative |cover |influence |erodibility? |- |CORRECT |ANSWER✔✔-Top |growth |reduces |
raindrop |impact, |filters |sediment |and |slows |down |runoff |velocity; |roots |hold |mass |particles |
together
How |can |you |decrease |erodibility |in |relation |to |topography? |- |CORRECT |ANSWER✔✔-Increase |
slope |roughness
What |climate |characteristics |affect |erodibility? |- |CORRECT |ANSWER✔✔-Rainfall |intensity, |
duration |and |frequency
Why |does |frequent |rainfall |increase |erodibility? |- |CORRECT |ANSWER✔✔-The |soil |becomes |
saturated |and |no |more |water |can |infiltrate |which |increases |runoff |volume
Why |is |erosion |potential |high |in |the |spring |if |it |rains? |- |CORRECT |ANSWER✔✔-Water |can't |
infiltrate |the |frozen |subsoil |which |increases |runoff |volume
What |are |some |ways |urban |development |impacts |erosion |hazards? |- |CORRECT |ANSWER✔✔-
Changes |hydrology |(GW |flow, |drainage), |disturbs |large |amounts |of |soil, |removes |plant |cover
, BMP |considerations |for |clearing |and |grubbing? |- |CORRECT |ANSWER✔✔-Preserve |existing |
vegetation; |clear |only |what |is |required |for |immediate |construction |activity
BMP |considerations |for |mass |grading? |- |CORRECT |ANSWER✔✔-Create |principle |basins, |traps, |
barriers, |diversions |and |channels; |temporary |stabilization; |manage |concentrated |runon |and |
runoff |(water |bars)
BMP |considerations |for |site |access |& |off-hauling? |- |CORRECT |ANSWER✔✔-Stabilize |with |gravel
|and |temporary |vegetation; |limit |ingress |and |egress |points
What |are |the |3 |stages |of |inlet |construction? |- |CORRECT |ANSWER✔✔-Pipe |installation, |inlet |
construction, |inlet |backfill
BMP |considerations |of |channel |construction? |- |CORRECT |ANSWER✔✔-Monitor |weather, |install
|grade |controls, |stabilize |streambanks |early; |consider |time |of |year |(weather) |to |start |
construction |(phasing)
BMP |considerations |of |final |stabilization? |- |CORRECT |ANSWER✔✔-Immediately |apply |temp |or |
permanent |stabilization |of |disturbed |areas; |don't |allow |surface |area |to |dry |out |for |a |few |days |
before |seeding |(affects |germination)
BMP |considerations |of |vertical |construction? |- |CORRECT |ANSWER✔✔-Protect |inlets; |modify |
plan |to |show |new |conditions |and |updated |measures
What |would |have |to |be |updated |as |construction |progressed |on |the |SWPPP? |- |CORRECT |
ANSWER✔✔-Installation |and |removal |dates, |changes |in |plan |designs, |and |changes |in |BMPs
When |are |outlet |protectors |used? |Examples? |- |CORRECT |ANSWER✔✔-To |control |runoff; |
wattles, |check |dams |(energy |dissipaters) |or |thick/matted |veg, |riprap |(ground |cover)
