Collection system exam review-grade 1
Study online at https://quizlet.com/_j93t67
1. An appurtenance that is installed to allow easy inser- Clean out
tion of cleaning or clearing equipment into a service
connection is called a
2. The design minimum scouring velocity for a collection 2
system is_____feet per second
3. A type of pipe that is classified as being flexible is ______ PVC
pipe
4. If a sewer line does not have sufficient slope to cause Decomposable organic
adequate flow velocity,odors may result from _____
_________ solids settling out in the line.
5. The prepared base or bottom of a trench or excavation Bedding
on which a pipe or other underground structure is
supported is called?
6. A sewer system that is designed to carry both sanitary Combined
waste and storm water runoff is called a _________ sew-
er.
7. Wastewater moves through a collection system by Low
gravity ______ pressure or a vacuum.
8. A __________ flume can be used to measure flow in the Parshall
collection system.
9. A large diameter pipe that collects wastewater from Intercepter
more than one sewer main is called an ?
10. The function of the _________ ____________ unit in a vac- Vacuum interface
uum sewer system is to prevent atmospheric pressure
from entering the system and breaking the vacuum.
, Collection system exam review-grade 1
Study online at https://quizlet.com/_j93t67
11. An __________ __________ is installed to allow crossing the Inverted siphon
collection system under a watercourse or train tracks
12. ________ are used in manholes and junction structures Weirs
to divert
13. The minimum diameter for residential home sewer 4
pipes is _________ inches
14. Sewer mains are typically buried to a depth of ____ feet 6
15. Proper _______ and _______ are important following sew- Backfill and compaction
er main insulation because inadequate side support
will reduce the load capacity of the pipe.
16. The shaft should be repaired or replaced on a centrifu- Grooves or scoring
gal pump when_______ or ________ are evident on the
shaft
17. Maintenance on a piece of equipment that is not vital Corrective
for public safety, but failed is called__________ mainte-
nance
18. The _________ components of a valve are subjected to Internal
the corrosive nature of waste water
19. Over, a pump impeller will wear which will_________ Reduce
pump efficiency
20. After repacking the stuffing box on a centrifugal pump, Tightened slowly
the packing gland should be ________ ________ over sev-
eral hours.
Study online at https://quizlet.com/_j93t67
1. An appurtenance that is installed to allow easy inser- Clean out
tion of cleaning or clearing equipment into a service
connection is called a
2. The design minimum scouring velocity for a collection 2
system is_____feet per second
3. A type of pipe that is classified as being flexible is ______ PVC
pipe
4. If a sewer line does not have sufficient slope to cause Decomposable organic
adequate flow velocity,odors may result from _____
_________ solids settling out in the line.
5. The prepared base or bottom of a trench or excavation Bedding
on which a pipe or other underground structure is
supported is called?
6. A sewer system that is designed to carry both sanitary Combined
waste and storm water runoff is called a _________ sew-
er.
7. Wastewater moves through a collection system by Low
gravity ______ pressure or a vacuum.
8. A __________ flume can be used to measure flow in the Parshall
collection system.
9. A large diameter pipe that collects wastewater from Intercepter
more than one sewer main is called an ?
10. The function of the _________ ____________ unit in a vac- Vacuum interface
uum sewer system is to prevent atmospheric pressure
from entering the system and breaking the vacuum.
, Collection system exam review-grade 1
Study online at https://quizlet.com/_j93t67
11. An __________ __________ is installed to allow crossing the Inverted siphon
collection system under a watercourse or train tracks
12. ________ are used in manholes and junction structures Weirs
to divert
13. The minimum diameter for residential home sewer 4
pipes is _________ inches
14. Sewer mains are typically buried to a depth of ____ feet 6
15. Proper _______ and _______ are important following sew- Backfill and compaction
er main insulation because inadequate side support
will reduce the load capacity of the pipe.
16. The shaft should be repaired or replaced on a centrifu- Grooves or scoring
gal pump when_______ or ________ are evident on the
shaft
17. Maintenance on a piece of equipment that is not vital Corrective
for public safety, but failed is called__________ mainte-
nance
18. The _________ components of a valve are subjected to Internal
the corrosive nature of waste water
19. Over, a pump impeller will wear which will_________ Reduce
pump efficiency
20. After repacking the stuffing box on a centrifugal pump, Tightened slowly
the packing gland should be ________ ________ over sev-
eral hours.
