Distribution Systems
Collection Systems
Grab Bag!
Water
Clean Water (WW)
100
Where pressure relief valves are most commonly installed.
What is on the side outlet of a tee at a specific point in the system?
100
Lift Station Components:
The type of level-sensing device that may become entangled with other floats and cables in the wet well.
What are float switches?
100
Type of pump that consists of an impeller fixed on a rotating shaft that is enclosed in a casing and has an inlet and discharge connection.
What is a Volute Pump?
100
Activated alumina is this type of process.
What is Adsorption?
100
Anaerobic bacteria live and reproduce in this type environment.
What is an environment with no free or dissolved oxygen?
200
Turbidity Units (TU) measure this in water systems.
What is Cloudiness of Water?
200
200
Settleometer is used to measure this.
What are Settable Solids?
200
This should never be fed ahead of phlyphosphate used to control iron and manganese.
What is Chlorine?
200
The number of points a storage reservoir should be sampled for DO.
What is a minimum of 4 points?
300
Gallons of water in a water storage tank containing 2,000 cubic feet of water.
What is 14,960 gal?
300
How vortexing happens within a pump.
What is water is drawn too rapidly into the pump.
300
How shotcrete is applied.
What is Air Pressure?
300
Frequency that internal conditions of the hydrofluosilicic tanks should be inspected.
What is every 2 years?
300
The measure of the oxygen-consuming capacity is wastewater.
What is Chemical Oxygen Demand (COD)?
400
Substance in the water that influences the rate of corrosion in a storage facility.
What is Dissolved Oxygen?
400
Can make manhole joints potentially susceptible to infiltration.
What is Groundwater?
400
The specific gravity of copper if a cubic foot weighs 558.1 pounds.
What is 8.94?
Divide the weight of the copper by the weight of an equal volume of water:
558.1 lbs / 62.43 lbs = 8.94.
400
400
The dewatering equipment that contains all odors generated during the process.
What are Atmospheric Conditions?
500
The screw jack that should be installed first when installing braces.
What is the top brace or jack?
500
The pump capacity in gallons/minute rounded to the nearest whole number.
What is 47 gpm?
500
The flow rate in gallons/minute if the flow rate is 1.1 ft3/second.
What is 493.7 gal/min. 
500
Can be removed before chlorine is added to control THMs. (trihalomethanes)
What is THM precursors?
500
The kind of device that measures flowing or generated electric current.
What is a Cathodic device?