Tylers Groove
I carry both rain water and sewage in a single pipe.
a. storm drain
b. sanitary sewer
c. combined sewer
d. culvert
What is (C) combined sewer
My treatment area consist of bar screens, grit removal, odor control, flow meters. What am I?
a. collection system
b. primary treatment
c. preliminary treatment
d. secondary treatment
What is (C) preliminary treatment
Grit is composed primarily of ________ material.
a. organic
b. inorganic
c. thermal
d. radioactive
what is (B) inorganic material
The flow velocity for a sanitary sewer is _______ FPS?
a. 0.5 fps
b. 1.0 fps
c. 2.0 fps
d. 3.0 fps
What is (C) 2 fps
I am a gas that smells like rotten eggs at low concentrations. I can dull the sense of smell, and can be toxic or even explosive.
a. Carbon Dioxide
b. Carbon Monoxide
c. Methane
d. Hydrogen Sulfide
What is (D) hydrogen sulfide
Flow through a grit channel should be ______ FPS.
a. 0.5 FPS
b. 1.0 FPS
C. 2.0 FPS
D. 3.0 FPS
What is (B) 1.0 FPS
________ is the piping that connects the public sewer to the building. Typically 4 to 6 inches in diameter.
a. Force Main
b. Lateral
c. Potable
d. Channel
What is (B) Lateral
Gravity sewers are a minimum of _____ inches diameter pipes with manholes located every 400 ft.
a. 4 inches
b. 6 inches
c. 8 inches
d. 12 inches
What is (C) 8 inches
What are the 4 types of wastewater operators may come into contact with?
a. organic
b. inorganic
c. thermal
d. radioactive
I am a disease causing organism including bacteria and viruses that can be in wastewater from animal and human wastes.
a. Pathogens
b. Filamentous
c. Narcodia
d. Rotifers
What is (A) pathogens
Which is not a disease that may be found in wastewater?
a. typhoid
b. Hepatitis
c. polio
d. Lactobacillus
What is (D) Lactobacillus
A type of contaminant that always contains carbon and is derived from animals, plants or may be a manufactured chemical compound is an:
a. Inorganic contaminant b. Salt contaminant
c. Organic contaminant d. Pathogen
What is (B) salt contaminant
Eutrophication can be defined as:
a. Lack of nutrients in a receiving stream due to chemical discharges
b. Excessive nutrient availability that results in overgrowth of aquatic plants and algae
c. Excessive growth of fish
d. Pleasing taste and odor in drinking water
What is (B) excessive nutrient availability that results in overgrowth of aquatic plants and algae
The direct flow of water to a sewer system (down spouts, yard drains, clean-outs) is called:
a. infiltration
b. inflow
c. combined flow
What is (B) inflow
When groundwater enters the sewer pipes through cracks and openings in the pipes is called:
a. inflow
b. infiltration
c. combined
d. septic
What is (B) infiltration
Domestic wastewater is _____ % water.
a. 10%
b. 90.9%
c. 99.9%
d. 89.9%
what is (C) 99.9%
_____ is a condition brought on by the action of anaerobic bacteria.
a. aerobic conditions
b. facultative conditions
c. septic conditions
d. oxygenated conditions
What is (C) septic conditions
Caused from the aeration tank being critically underloaded (high MLss) from improper WAS.
a. Thick scummy Dark Tan Foam
b. Shiny Dark Tan Foam
c. White Billowing Foam
What is (A) Thick scummy dark tan foam
Caused from the aeration tank approaching an underloaded high MLss condition due to poor WAS.
A. Thick Scummy Dark Tan Foam
B. Shiny Dark Tan Foam
C. Filamentous
D. Anaerobic Foam
What is (B) Shiny Dark Tan Foam
what is the purpose of the grinder pumps?
1) to lift the pumped flows into a gravity flow system
2) to measure the flows pumped into the collection system
3) to pressurize the wastewater to help move it through the collection system
4) to pump sludge into the collection system from holding tanks
What is (3) to pressurize the wastewater to help move it through the collection system
Chlorine is _______ times heavier then water?
a. 1.5
b. 2.5
c. 3.5
d. 0.5
What is (A) 1.5 times heavier then water
_____ is the bodies of water that are located at the lower end of a river and are subject to tidal fluctuations.
a. tributaries b. estuary c. Arcadia coves d. rivers
What is (B) estuary
_______________ is the discharge elimination system permit issued by either the federal or state agency, designed to control all discharges of pollutants from all point sources and storm water runoff into u.s. waterways. A treatment plant that discharges to a surface water will have this permit.
a. NPDES b. MOR c. DMR d. MSDS
What is (A) NPDES National discharge elimination system permit
The nitrification cycle is:
a. ammonia to nitrate to nitrite to nitrogen
b. nitrogen to nitrite to nitrate to nitrogen
c. ammonia to nitrite to nitrate to nitrogen
What is (C) ammonia to nitrite to nitrate to nitrogen
It takes ______ lbs of alkalinity to convert 1 lb of ammonia.
a. 3 lb b. 4.6 lb c. 7.2 lb d. 1.5 lb
What is (C) 7.2 lb of alkalinity to convert 1 lb of ammonia