Safety
A space large enough for a person to bodily enter and perform work, but not designed for continuous occupancy with limited means of entry and exit is ____.
A space large enough for a person to bodily enter and perform work, but not designed for continuous occupancy with limited means of entry and exit is ____.
This gas is greenish yellow in color, has a noxious odor, is 2.5 times as dense as air and may cause toxicity if inhaled, or through contact with the skin.
What is chlorine gas?
How much does one gallon of water weigh?
What is 8.34 lbs/gal?
The year HWEA was founded.
What is 1895?
ph measures this
What is the concentration of hydrogen ions?
In case of a chemical contact with eyes or skin this is the minimum amount of time you should flush the area with water.
What is 15 minutes?
This term is defined as the killing or inactivation of pathenogenic organisms in water.
What is disinfection?
A one-cubic foot container will hold this many gallons of water.
What is 7.48 gallons?
What is Hopkinsville Water Environment Authority?
The minimum number of buffers required to calibrate a pH meter.
What is two?
A SDS should be kept on file for this long.
What is 30 years?
Water hammer is most likely caused by which of the following conditions (dissolved gases in the water, a ruptured water line, or closing a valve to fast)
What is closing a valve too fast?
What are sludge particles produced in raw or settled wastewater (primary effluent) by the growth of organisms in aeration basin in the presence of oxygen?
What is activated sludge?
Original name of HWEA.
What is Hopkinsville Sewerage and Water Commission
What laboratory device sterilizes microbial media and laboratory equipment using pressurized steam?
What is an autoclave?
These are designed to protect only your eyes from chemical splashes.
What are googles?
The condition that occurs in reservoirs when cooler, denser water at the surface sinks toward the bottom and warmer water at the bottom of the reservoir is pushed upward.
What is turnover?
What is the process called where bacteria change the ammonia and organic nitrogen in wastewater into oxidized nitrogen (usually nitrate)?
What is nitrification?
HWEA's Corporate Safety Statement.
Zero injuries, equipment damage, or property damage.
What is the pH endpoint for total alkalinity?
What is 4.5?
The safety procedure that requires that an energy source be turned off and locked, and that information describing why a system is shut down is displayed on a tag is called what?
What is lock-out/tag-out?
Fusible plugs on a chlorine cylinder are designed to melt at what temperature?
What is 158 degrees F?
The term that describes the condition when small bubbles of air form and eplode against the impeller causing a pinging sound is what?
What is cavitation?
HWEA's first general manager.
Who is Thomas Morris?
What BOD stands for
What is Biochemical or Biological Oxygen Demand?