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Drinking Water Treatment – Questions With Detailed Solutions
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Drinking Water Treatment – Questions With DetailedSolutions
Using chlorine or other chemicals or techniques to remove or destroy the
harmful bacteria and viruses in the water is called. Correct Ans -
Disinfection.
When and where was the first attempt to disinfect a public water supply In
the US? Correct Ans - Jersey city in 1908.
The highest level of a disinfectant allowed in drinking water is referred to
as. Correct Ans - MDRL , Maximum residual disinfectant level.
The first known water systems were used in. Correct Ans - 300 BC
using boiling and filtration.
The first water filter system was put into use in 1872 in which state?
Correct Ans - New York.
In the 1920's people were dying of Cholera. The Cholera was spread by?
Correct Ans - Water contamination.
True or false...
Is the following statement true or false. Among its countless uses, waters
most important use is for cleaning. Correct Ans - False.
What do the words potable water mean? Correct Ans - Water that
may be consumed in any amount without concern for adverse effects on
health.
Slow sand filtration is a process that. Correct Ans - Was used
predominantly in the early years of US water treatment.
True or false...
Agriculture and industry pose the biggest threats to the water supply?
Correct Ans - True.
True or false...
, To be an enforceable standard, the state must first agree to adopt the
standard for a water constituent Correct Ans - False.
The impetuous for the safe drinking water act was. Correct Ans -
Varying water standards across state lines.
An MRCL is: Correct Ans - Maximum Recommended Concentration.
True or false...
An important aspect of the safe drinking water act is enforcement action to
ensure full compliance for any violation. Correct Ans - True.
The multiple barrier approach used in the Safe Drinking Water act to
protect the public water supply includes: Correct Ans - Protections
provided at the source, during the treatment process and in the
distribution system.
True or false...
Certification was not considered in the drafting of the Safe Drinking Water
Regulations. Correct Ans - False.
The Safe Drinking Water Act of 1974 gave EPA authority to regulate public
water treatment systems by all but which of the following: Correct Ans
- Consolidating all state programs for source water monitoring.
The first large scale public water chlorination facility was installed in the
United States in what year? Correct Ans - 1908.
Chlorine kills bacteria by: Correct Ans - Destruction of cell
membranes.
Coliform bacteria are good indicators of pathogens because they:
Correct Ans - Are always present in water with fecal contamination.
Operators are responsible for: Correct Ans - Providing a continuous
supply of safe water to the public.
True or False...
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