REAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+(2025/2026)
In order to accurately estimate the flow of a sanitary sewer
overflow (SSO) you must have: - ANSWER-Spill start time, spill
end time and spill rate
Providing a plan and schedule to properly manage, operate and
maintain all parts of the sanitary sewer system is the goal of a: -
ANSWER-A sewer system management plan (SSMP)
What is a Collection System? - ANSWER-A network of pipes,
manholes, cleanouts, traps, siphons, lift stations, and other
structures used to collect all wastewater and wastewater-carried
wastes of an area and transport them to a treatment plant. The
collection system includes land, wastewater lines and
appurtenances, pumping stations, and general property. Also
called sewerage system.
FOG: - ANSWER-fats, oils, and grease: Sewer pipes can become
clogged from fats, oils, and grease and then overflow, releasing
untreated wastewater.
,What is a sewer Interceptor? - ANSWER-Typically, a large-
diameter pipe that acts as a main trunk of a sewer system. The
interceptor is fed from sewer mains, which are fed by sewer
laterals. In small communities, a septic tank or other holding tank
that serves as a temporary wastewater storage reservoir for a
septic tank effluent pump (STEP) system may be called an
interceptor.
NPDES Permit (National Pollutant Discharge Elimination System):
- ANSWER-A regulatory document that limits discharges into US
waterways and provides monitoring and reporting requirements
and other provisions to ensure that discharges do not hurt water
quality or people's health. Part of the Clean Water Act prohibits
the discharge of potential pollutants from point sources of
pollution and stormwater runoff into a water of the United States
without an NPDES permit.
SCADA System (Supervisory Control and Data Acquisition): -
ANSWER-A computer-monitored alarm, response, control, and
data acquisition system used to monitor and adiust treatment
processes and facilities.
A traffic control flagger should wear a ______ hard hat: -
ANSWER-White
,The Buffer Zone is part of what traffic control component: -
ANSWER-Activity Area
A method that involves cutting, pushing, scraping, or pulling
debris out of a pipe. - ANSWER-Mechanical Sewer Cleaning
Used when there is heavy roots or debris in the pipe. - ANSWER-
Step cleaning
What are some Rodder cleaning tools: - ANSWER-Auger, Root
Saw, Spring Blade Root Cutter Chuck, Bullet Nose, Sand Leader
What are the basics elements of a safety program? - ANSWER-
Safety policy, statement, safety training, accident investigation
What factor must be considered when obtaining an easement for
construction and maintenance of a collection system? -
ANSWER-Access for equipment and personnel
As the division manager you receive a request from your board or
council, and they want an immediate response. You do not know
all the answers you should: - ANSWER-Respond with the
information available and update them with more
, If you were a supervisor of two lead workers, one whose work
was exceptionally good and a second whose work was
substandard, what should you do? - ANSWER-Discuss the
problem with the substandard foreman and offer to help before
any other action is taken
In selecting pipe material for maximum service life which factor is
more important? - ANSWER-Life expectancy of pipe
What affects the flow capacity of a sewer line? - ANSWER-Pipe
size, pipe, material, grade
When a grade conflict exists between a Water main and a sewer
main, which of the following is the best solution? - ANSWER-
Have the Water main adjusted and hold the grade on the sewer
main
Why is the replacement of wastewater collection systems in some
downtown streets difficult? - ANSWER-Crowding of other
underground utilities.
What are some forms of Chemical Cleaning? - ANSWER-Foaming,
dusting or by liquid