Operators are urged to develop close working relationships with their local regulatory agencies to keep themselves informed of frequent changes in
... [Show More] regulations and requirements. - correct answer True
The safe drinking water act gives a EPA The power to require public water systems to monitor and report their levels of identified contaminants - correct answer True
Projected regulation of the flow to water treatment plants depend on the method used to deliver water to the plant - correct answer False
Chlorine is a strong respiratory irritant, and either prolonged exposure to chlorine gas or high concentrations of chlorine gas could be fatal - correct answer True
Relay logic is a method of switching electrical power on and off in accordance with a predetermined sequence by means of relays, process switches and contacts, timers, and manual switches - correct answer True
Automation relieves operators of the responsibility to make operational decisions and to exercise operational control - correct answer False
Process equipment failures may result in treatment process upsets in the event that chemical feeder's, chlorinators, or other primary process equipment items fail to operate satisfactorily - correct answer True
Training is an important as any other single element of the operation and maintenance program - correct answer True
In its most sophisticated form, power management can be used to control all of the electrical loads in the plant - correct answer True
Chief operators frequently have the responsibility of training new operators - correct answer True
Why are many sources of water not directly suitable for drinking purposes without treatment - correct answer Because of pollution and contamination by humans and nature
What is the major concern of the operators of water treatment plants and water distribution systems? - correct answer To produce and deliver to consumers water that is safe and pleasant to drink
What is the purpose of prechlorination? - correct answer To kill most disease causing organisms and help control taste and odor causing substances
What is the purpose of sedimentation? - correct answer To settle out larger suspended particles
What does it water treatment plant operator deal - correct answer Keeps it water treatment plant operating to produce a positive, pleasant, and adequate supply of water
Which items are essential to meet variable system demands? - correct answer Adequate source capacity and treated water storage volume
Which value establishes the basic guideline for a water systems operation? - correct answer Minimum distribution system operating pressure
Why should the air with Clarane never be pulled through a fan? - correct answer Eventually any wiring or controls in the fan can become corroded and fail
What is the major source of sludge solids to be disposed of as a result of water treatment? - correct answer Suspended solids in the source water
Why must manual controls be available in water treatment plant? - correct answer To back up critical functions so operators can override the automatic system when necessary
Treatment process failures generally result from which event? - correct answer An abrupt or unexpected change in source water quality
In the event of a commercial power failure, why should the operator prepare a restart sequence for process equipment? - correct answer So that only one piece of equipment at a time is restarted to a void overload
What are the major categories of operating records? - correct answer Physical records and performance records
Why do operators need to know how to properly use common hand tools? - correct answer To protect equipment and for their own safety
What does a comprehensive records management system do? - correct answer Provides the basis for daily task assignments, provide a permanent record of work performed, and becomes a historical reference source for reviewing equipment performance
What is the purpose of emergency repair procedures? - correct answer To enable operators to put their facility back in service as soon as possible after a failure
What is the kilowatt demand? - correct answer The greatest single energy demand during the month
Who does the operator really work for? - correct answer The people who depend on the operator to reproduce safe and pleasant drinking water from the treatment plants
Which factors are sources of groundwater contamination? - correct answer 1. agricultural drainage systems
2. Entry of surface runoff into poorly constructed wells
3. Improper disposal of hazardous waste and sanitary landfills
4. Seepage from septic tank leaching systems [Show Less]