Waste Water Engineering Multiple Choice Questions on “Construction & Planning of Sewer System”.
1. The process that involves connecting pipelines and sewer appurtenances to transport waste to sewage treatment centres is called?
a) Connecting pipelines
b) Pipelines construction
c) Sewer construction
d) Sewage construction
Answer: c
Clarification: Sewers are the pipelines to carry sanitary sewage and storm water to treatment plants or centres. The process of connecting pipelines and sewer appurtenances to transport waste to sewage treatment plants is called sewage construction.
2. Pipeline networks are designed by engineers and installed by sewer contractors in accordance with federal and state regulations.
a) True
b) False
Answer: a
Clarification: To construct sewer systems certain rules and regulations have to be followed based on the quality of pipes chosen, alignment and so on. Pipeline networks are designed by engineers based on city and installed by sewer contractors.
3. Sewer systems can also be referred as _________
a) Sewage
b) Sewerage
c) Storm
d) Wastewater
Answer: b
Clarification: Sewer systems are also referred to as sewerage and can be comprised of storm sewers, sanitary sewers, or a combination of both. Sewerage starts at the building’s drainage system and is transported through sewer pipeline until it reaches a sewage treatment plant.
4. On which of the factors mentioned below, the type of the sewer installed does not depend on?
a) Usage pattern
b) Terrain
c) location
d) storm water
Answer: d
Clarification: Storm water does not act as a distinctive factor for the installation of sewer systems. The type of sewer installed depends upon the terrain, where it is placed and the uses. Sanitary sewers are the most common type of system used to transport wastewater and industrial waste.
5. __________ is required to transport storm water runoff from roofs, parking lots, streets, and highways to a point of discharge.
a) Sanitary sewers
b) Storm sewers
c) Wastewater sewers
d) Water sewers
Answer: b
Clarification: There are different types of sewers used based on a type of flow it is designed to carry. Storm sewers are required to transport storm water runoff from roofs, parking lots, streets, and highways to a point of discharge. Storm drainage system helps to minimize flooding and soil erosion.
6. Combined sewer systems are no longer installed due to the water pollution problems they present.
a) True
b) False
Answer: a
Clarification: As combined sewer systems carry both sanitary sewage and storm water, they overflow when storm water rate is high during rainy season. This causes water pollution. However, these sewer systems are still used by older cities located primarily in the Northwest, Northeast, and Great Lakes regions.
7. Which of the following factors mentioned below marks essential for planning sewer systems for a community?
a) Usage pattern
b) Terrain
c) Location
d) Wastewater flow
Answer: d
Clarification: Planning is needed when designing sewer networks. Calculating the wastewater flow for the community is the most essential factor. The calculation of wastewater flow shows the size of the sewer to be considered.
8. The abbreviation of SUE is?
a) Subsurface utility engineering
b) Surface utility engineering
c) Storm usage engineering
d) Storm utility engineering
Answer: a
Clarification: SUE stands for subsurface utility engineering. Before SUE, a survey is carried out. It helps contractors locate pipelines and subsurface utilities using a variety of detection tools such as ground penetrating radar and evacuation pipe.
9. Which of these is the most common pipeline installation method?
a) Trench sewer construction
b) Storm sewer construction
c) Pipeline construction
d) Tunnel construction
Answer: a
Clarification: Trench sewer construction is the most common pipeline installation method. At grade level, sewers can be installed and protected by an embankment or a wall, or placed inside tunnel walls.
10. The type of wastewater treatment process for treating wastewater or industrial wastewater using aeration and biological flocs is called?
a) Active sludge process
b) Aeration
c) Biological aeration
d) Anaerobic digestion
Answer: a
Clarification: One of the sewer wastewater treatment processes is a biological treatment known as activated-sludge process. Wastewater is agitated and aerated to remove solids and oxidation methods are introduced to activate decomposition.
11. What is the abbreviation of SSMP?
a) Storm and Sewage Management Plan
b) Sewer System Management Plan
c) Soil and Storm Management Plan
d) Storm System Management Plan
Answer: b
Clarification: SSMP stands for Sewer System Management Plan. This is a document that any agency uses to manage the wastewater collection system effectively. It helps in improving the condition of the collection system infrastructure.
12. For which of the following reason SSMP is not used?
a) Minimizing sanitary sewer overflows
b) Minimizing infiltration/ inflow
c) Reducing sewer size
d) Maintaining the condition of a collection system
Answer: c
Clarification: Sewer System Management plan is mainly used to maintain and improve the condition of the collection system infrastructure in order to provide reliable service for the future. Reducing the size of the sewers may lead to overflow conditions during the periods of high storm.
13. SSMPs are used to minimize the number and impact of sanitary sewer overflows that occur.
a) True
b) False
Answer: a
Clarification: SSMP is a document used to manage wastewater systems effectively. Hence one of the goals of Sewage System Management Plan is to minimize the number and impact of sanitary sewer overflows that occur in few regions.
14. The legal entity that is responsible for the wastewater collection system is called ___________
a) Collection system agency
b) Sewer system agency
c) Water collection agency
d) Storm collection agency
Answer: b
Clarification: The legal entity that is responsible for the wastewater collection system is the Wastewater Collection System Agency. It is also called Sewer System Agency.
15. SORP stands for?
a) Storm Overflow Response Plan
b) Sewer Overflow Response Plan
c) Sanitary Overflow Response Plan
d) Sewage Overflow Response Plan
Answer: b
Clarification: SORP stands for Sewer Overflow Response Plan. It is the fourth revised version posted in the Public Document Repository on May 9, 2011, by Waterworks and sanitary sewer board.