Wastewater Collection with correct
answers
60 gallons per hour is equal to - CORRECT ANSWER-1 gallon per minute.
The slope of a sewer is measured by the difference in - CORRECT ANSWER-Invert
elevations over a length of pipe
An air gap can be used to prevent.... - CORRECT ANSWER-backflow of waste water
into a drinking water supply.
A cross connection is a potable water pipe connected to a supply of... - CORRECT
ANSWER-questionable origin.
Wastewater carried in to a collection system may come from - CORRECT ANSWER-
Inflow
When using any hydraulic sewer cleaning method care must be taken by the operator
not to - CORRECT ANSWER-Cause flooding in home and businesses.
Disease producing bacteria are - CORRECT ANSWER-Called Pathogenic.
A man hole with the center great is normally used for - CORRECT ANSWER-Storm
sewer.
A Polly Pig would be used as a - CORRECT ANSWER-Reamer.
A minimum scouring velocity of 2ft/sec in sewers is necessary so that solids.... -
CORRECT ANSWER-won't build up in a sewer and reduce flow.
A cross-connection is best defined as? - CORRECT ANSWER-A potable water supply
connected to a potential source of pollution.
When dealing with collection systems, I&I refers to - CORRECT ANSWER-Infiltration
and Inflow
, Corrosion of sewer pipes maybe caused by - CORRECT ANSWER-Acids in water
In a collection system, waste water that contains NO "FREE" or dissolved oxygen is
referred to as - CORRECT ANSWER-Anaerobic .
The primary reason why it is important not to have cross connections of sewer with
water supply systems is? - CORRECT ANSWER-Possible water contamination .
A Polly Pig would most likely be used in the cleaning of a - CORRECT ANSWER-Force
main.
Flow rates can be expressed in - CORRECT ANSWER-Units of MGD [L/S] = Million
gallons per day 1.547 cu ft/s
A sewer man hole is an.... - CORRECT ANSWER-opening in a sewer provided for the
purpose of access.
The crown of a sewer pipe is called - CORRECT ANSWER-The top.
The primary purpose of wastewater disinfection is prevention.... - CORRECT ANSWER-
of receiving water contamination.
What should be considered as the scouring velocity of sanitary sewer - CORRECT
ANSWER-2 ft/second
A manhole barrel is referred to as - CORRECT ANSWER-The cylindrical section
between the cone and shelf.
What does not lead to roots entering a collection system manhole - CORRECT
ANSWER-Walls properly sealed.
Sewer lines can move after years in place due to - CORRECT ANSWER-Settlement,
frost action, nearby activities.
The end of the sewer pipe that is formed to fit into the bell of the next pipe is called -
CORRECT ANSWER-Spigot.
The components of a manhole are - CORRECT ANSWER-Cone, barrel, shelf.
When the velocity of flow in a collection system is 2 ft./sec or greater - CORRECT
ANSWER-A scouring action will develop.
Inflow can best be defined as? - CORRECT ANSWER-Direct discharge of stormwater
to a sewer.
answers
60 gallons per hour is equal to - CORRECT ANSWER-1 gallon per minute.
The slope of a sewer is measured by the difference in - CORRECT ANSWER-Invert
elevations over a length of pipe
An air gap can be used to prevent.... - CORRECT ANSWER-backflow of waste water
into a drinking water supply.
A cross connection is a potable water pipe connected to a supply of... - CORRECT
ANSWER-questionable origin.
Wastewater carried in to a collection system may come from - CORRECT ANSWER-
Inflow
When using any hydraulic sewer cleaning method care must be taken by the operator
not to - CORRECT ANSWER-Cause flooding in home and businesses.
Disease producing bacteria are - CORRECT ANSWER-Called Pathogenic.
A man hole with the center great is normally used for - CORRECT ANSWER-Storm
sewer.
A Polly Pig would be used as a - CORRECT ANSWER-Reamer.
A minimum scouring velocity of 2ft/sec in sewers is necessary so that solids.... -
CORRECT ANSWER-won't build up in a sewer and reduce flow.
A cross-connection is best defined as? - CORRECT ANSWER-A potable water supply
connected to a potential source of pollution.
When dealing with collection systems, I&I refers to - CORRECT ANSWER-Infiltration
and Inflow
, Corrosion of sewer pipes maybe caused by - CORRECT ANSWER-Acids in water
In a collection system, waste water that contains NO "FREE" or dissolved oxygen is
referred to as - CORRECT ANSWER-Anaerobic .
The primary reason why it is important not to have cross connections of sewer with
water supply systems is? - CORRECT ANSWER-Possible water contamination .
A Polly Pig would most likely be used in the cleaning of a - CORRECT ANSWER-Force
main.
Flow rates can be expressed in - CORRECT ANSWER-Units of MGD [L/S] = Million
gallons per day 1.547 cu ft/s
A sewer man hole is an.... - CORRECT ANSWER-opening in a sewer provided for the
purpose of access.
The crown of a sewer pipe is called - CORRECT ANSWER-The top.
The primary purpose of wastewater disinfection is prevention.... - CORRECT ANSWER-
of receiving water contamination.
What should be considered as the scouring velocity of sanitary sewer - CORRECT
ANSWER-2 ft/second
A manhole barrel is referred to as - CORRECT ANSWER-The cylindrical section
between the cone and shelf.
What does not lead to roots entering a collection system manhole - CORRECT
ANSWER-Walls properly sealed.
Sewer lines can move after years in place due to - CORRECT ANSWER-Settlement,
frost action, nearby activities.
The end of the sewer pipe that is formed to fit into the bell of the next pipe is called -
CORRECT ANSWER-Spigot.
The components of a manhole are - CORRECT ANSWER-Cone, barrel, shelf.
When the velocity of flow in a collection system is 2 ft./sec or greater - CORRECT
ANSWER-A scouring action will develop.
Inflow can best be defined as? - CORRECT ANSWER-Direct discharge of stormwater
to a sewer.
