Wastewater collections Exam Prep Questions And Answers (202472025)
What is another term for wastewater collections system? - ✔✔Sewerage System
What is the term used to describe the seepage of ground water into a sewer system
including service connections? - ✔✔Infiltration
What is SSO stand for? - ✔✔Sanitary sewer overflow
What is the minimum scouring velocity in a sewer system? - ✔✔2 feet per second
no more than 10 feet per second
Smoke testing of wastewater collections system is used to determine what? - ✔✔The
location of illegal connections to a collection system
High velocity cleaners, kites, bags, poly pigs and sewer scooters are what type of
cleaning method? - ✔✔Hydraulic cleaning
What is the most widely used chemical to treat hydrogen sulfide? - ✔✔Chlorine
How many colors of markings are there for OUPS utility markings? - ✔✔8
What is installed in to give access to a portion of the service line leading to the main
lines? - ✔✔A Wye
Sewer pipes are usually tested at what air pressure above any outside water pressure
on the pipe? - ✔✔3 to 5 psi
, What should be used to test for deflection and offset joints when repairing or
installing new sewer lines? - ✔✔A Mandrel
What occurs in pumps when the absolute pressure at the pump inlet drops below the
vapor pressure of the water being pumped? - ✔✔Cavitation
What is the heart of a centrifugal pump? - ✔✔Impeller
What is used to provide a seal where the shaft passes through the pump casing in
order to keep air from being drawn or sucked into the pump or the water pump from
coming out? - ✔✔Packing
What is a pump fitted with that must never run dry or the faces will be burned and
ruined? - ✔✔Mechanical seals
What is the property of a fluid that resists efforts to change its shape or flow? -
✔✔Viscosity
A ring shaped space located between two circular objects is known as a? -
✔✔Annular
What is one of the techniques used to located rain induced leaks? - ✔✔Smoke testing
What is used to rehabilitate pipelines by pulling or pushing a new flexible liner pipe
of slightly smaller diameter into an existing deteriorated pipeline? - ✔✔sliplining
What is the technique for breaking out the old pipe by use of radial forces from inside
the old pipe, and is the only way to install a larger diameter pipe without new pipe
installation? - ✔✔Pipe bursting
What is another term for wastewater collections system? - ✔✔Sewerage System
What is the term used to describe the seepage of ground water into a sewer system
including service connections? - ✔✔Infiltration
What is SSO stand for? - ✔✔Sanitary sewer overflow
What is the minimum scouring velocity in a sewer system? - ✔✔2 feet per second
no more than 10 feet per second
Smoke testing of wastewater collections system is used to determine what? - ✔✔The
location of illegal connections to a collection system
High velocity cleaners, kites, bags, poly pigs and sewer scooters are what type of
cleaning method? - ✔✔Hydraulic cleaning
What is the most widely used chemical to treat hydrogen sulfide? - ✔✔Chlorine
How many colors of markings are there for OUPS utility markings? - ✔✔8
What is installed in to give access to a portion of the service line leading to the main
lines? - ✔✔A Wye
Sewer pipes are usually tested at what air pressure above any outside water pressure
on the pipe? - ✔✔3 to 5 psi
, What should be used to test for deflection and offset joints when repairing or
installing new sewer lines? - ✔✔A Mandrel
What occurs in pumps when the absolute pressure at the pump inlet drops below the
vapor pressure of the water being pumped? - ✔✔Cavitation
What is the heart of a centrifugal pump? - ✔✔Impeller
What is used to provide a seal where the shaft passes through the pump casing in
order to keep air from being drawn or sucked into the pump or the water pump from
coming out? - ✔✔Packing
What is a pump fitted with that must never run dry or the faces will be burned and
ruined? - ✔✔Mechanical seals
What is the property of a fluid that resists efforts to change its shape or flow? -
✔✔Viscosity
A ring shaped space located between two circular objects is known as a? -
✔✔Annular
What is one of the techniques used to located rain induced leaks? - ✔✔Smoke testing
What is used to rehabilitate pipelines by pulling or pushing a new flexible liner pipe
of slightly smaller diameter into an existing deteriorated pipeline? - ✔✔sliplining
What is the technique for breaking out the old pipe by use of radial forces from inside
the old pipe, and is the only way to install a larger diameter pipe without new pipe
installation? - ✔✔Pipe bursting
