Exam (elaborations)
CLASS A WATER OPERATOR QUESTIONS AND ANSWERS
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CLASS A WATER OPERATOR QUESTIONS AND ANSWERS
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CLASS A WATEROPERATOR
QUESTIONS AND
ANSWERS
How many Training Hours and experience for a class D Water Operator - Answers-16
Hours Training and No Experience
How many Training Hours and experience for a class C Water Operator - Answers-36
Hours Training and 1 year Experience
How many Training Hours and experience for a class B Water Operator - Answers-100
Hours Training and 3 years Experience (must include 1 year of hands on experience)
How many Training Hours and experience for a class A Water Operator - Answers-200
Hours Training and 5 years Experience (must include 2 years of hands on experience)
How many Training Hours and experience for a Class C Lab Operator - Answers-32
Hours and no experience
How many Training Hours and experience for a Class B Lab Operator - Answers-32
hours of C and 32 hours of B and 6 months experience. ***associate in science can
substitute 32hrs of C level training
How many Training Hours and experience for a Class A Lab Operator - Answers-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 -
Answers-36hours and 1 year experience
How many Training Hours and experience for a Distribution Technician - Answers-8
hours and no training.
, Community Water System - Answers-A public water supply that has at least 15 service
connections or serves 25 or more persons on a regular basis
Primary Contaminants - Answers-Contaminants identifies by the EPA as harmful to umal
health
Maximum Containment Level (MCL) - Answers-The level in which contaminants must
not exceed or public notification is required.
Cryptosporidium - Answers-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 - Answers-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 - Answers-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 - Answers-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.
Turbidity - Answers-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) - Answers-A measure of turbidity
H+ - Answers-hydrogen ion
OH- - Answers-hydroxide ion
Carbonate Hardness (CH) - Answers-Temporary hardness which is always alkalinity.
Calcium and magnesium ion combine with carbonate, bicarbonate, and hydroxide ions
to form carbonate hardness. Carbonate Hardness precipitates out with heat.
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