Operations
Laboratory
Equipment
Safety
100
Bacteria
What are the main workers in the activated sludge process
100
35 +/- 0.5 degrees C
What is the incubation temperature for E. coli?
100
90 degrees
What is the angle packing should be cut and installed in a staggered pattern.
100
Hydrogen Sulfide Gas
What is a gas detected by the smell of rotten eggs.
200
Temperature
What determines the quantity of chlorine that can be fed from a cylinder?
200
20 +/- 1 degrees C
What is the incubation temperature for BOD's?
200
20-60 drops per minute
What is the number of drops per minute properly installed packing will have?
300
Infectious hepatitis, typhoid fever, cholera, bacillary dysentary
What are water borne diseases?
300
Autoclave
What laboratory device sterilizes media and lab equipment using pressurized steam?
300
Foot Valve
What is a component that can be installed on a pump to hold the prime?
400
Sanitary, storm and combined
What are three types of sewers?
400
44.5 +/- 0.2 degrees C
What is the incubation temperature for fecal coliform bacteria?
400
Air Gap
What is a method that will prevent backflow by physically disconnecting the water supply and the source of contamination?
500
Denitrification
What is the conditions called that occurs when nitrate or nitrite ions are reduced to nitrogen gas and bubbles are formed as the result of the process?
500
Hydrogen ion concentration
What is pH?
500
160 degrees F
What is the maximum operating temperature of a mechanical seal?
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