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21 New Workplace Readiness Skills Sample Questions And Answers 100% Correct

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21 New Workplace Readiness Skills Sample Questions And Answers 100% Correct Why is having diversity in a company culture's staff a good idea? There is a broader range of talents, skills, and creativity. Shauna works at an advertising agency and recently had a verbal argument with a co-worker, ...

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  • November 23, 2024
  • 31
  • 2024/2025
  • Exam (elaborations)
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Class A Water Operator
Questions With Complete Solutions

How many Training Hours and experience for a Class A Lab Operator 32 hours of B and 1

year experience. ***Must include a Bachelor in science




How many Training Hours and experience for a Class C Distribution Operator 36hours

and 1 year experience




How many Training Hours and experience for a Distribution Technician 8 hours and no

training.




Community Water System A public water supply that has at least 15 service connections

or serves 25 or more persons on a regular basis




Primary Contaminants Contaminants identifies by the EPA as harmful to umal health




Maximum Containment Level (MCL) The level in which contaminants must not exceed

or public notification is required.

, Class A Water Operator
Questions With Complete Solutions
Cryptosporidium A microsocpic parasite that can be found in water. It produces cysts that

are very resistant to harsh environmental conditions. It is responsible for intestinal illness called

cryptosporidiosis. Symptoms include diarrhea, cramps, gas, bodily discomfort, fatigue, and

weight loss. Occurs one week after exposure and can last for 1-4 weeks




Disinfection Profiling A water system assesses the level of disinfection currently provided

and then determines the impact a proposed change in disinfection practice would have.




E. coli A bacterium that is commonly used as an indicator of human health risk from

harmful micro organisms that can be present in water. Symptoms include sever cramps and

diarrhea. Blood is often seen in the stool. Symptoms begin 1-9 days after exposure and last a

week or less.




Giardia A microscopic parasite that can be found in water. It produces cysts that are

resistant to harsh environmental conditions. Giardia causes intestinal illness called giardiasis.

Symptoms simular to cryptosporidiosis. Vomition, chills, headache and fever may also occur.

Symptoms begin one week after exposure and can last up to a month.

, Class A Water Operator
Questions With Complete Solutions
Hard Water A characteristic of water caused mainly by the salts of calcium (Ca++) and

magnesium (Mg++). Undesirable due to formation of soap curds, increase use of soap, and scale

deposits in boilers and water heaters. Defines as having hardness of 100mg/L or greater




Maximum Residual Disinfectant Level (MDRLs) The highest level of disinfectant

allowed in drinking water. Standards set by the US EPA




Microbial Pathogens Micro-organisms that cause disease




Safe Drinking Water Act (SDWA) An Act passed by the US Congress in 1974. It

establishes a cooperative program among local, state, and federal agencies to ensure safe

drinking water for customers.




Ch 1 - One gallon of water weighs 8.34 pounds




Ch 1- The average domestic water usage per person per day is usually somewhere in the range of

100-130 gallons

, Class A Water Operator
Questions With Complete Solutions
Ch 1 -Probably the most important source of information to use when implementing changes in

process control at a water plant is Lab Results




Ch 1 - The most important duty of a water plant operator is to Help to protect the health

and well-being of the community




Apparent color The color visible in water




True color Dissolved material contribution to color and is not removed through simple

filtration (i.e. coffee or tea). Measure in Color Units (CUs) using a clear glass tube called a

Nessler tub.




Turbidity Particles suspended in water. These particles can be removed through filtration.

This is considered a primary contaminant by the EPA. These particles can surround and protect

harmful microorganisms from being destroyed by chlorination.




Nephelometric Turbidity Unit (NTUs) A measure of turbidity

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