1
Class A Water Operator Questions
with 100% Correct Answers
How many Training Hours and experience for a class D Water Operator Correct
Answer: 16 Hours Training and No Experience
How many Training Hours and experience for a class C Water Operator Correct
Answer: 36 Hours Training and 1 year Experience
How many Training Hours and experience for a class B Water Operator Correct
Answer: 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 Correct
Answer: 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 Correct
Answer: 32 Hours and no experience
How many Training Hours and experience for a Class B Lab Operator Correct
Answer: 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 Correct
Answer: 32 hours of B and 1 year experience. ***Must include a Bachelor in
science
:
vPretest - Stuvia US
,2
How many Training Hours and experience for a Class C Distribution Operator
Correct Answer: 36hours and 1 year experience
How many Training Hours and experience for a Distribution Technician Correct
Answer: 8 hours and no training.
Community Water System Correct Answer: A public water supply that has at
least 15 service connections or serves 25 or more persons on a regular basis
Primary Contaminants Correct Answer: Contaminants identifies by the EPA as
harmful to umal health
Maximum Containment Level (MCL) Correct Answer: The level in which
contaminants must not exceed or public notification is required.
Cryptosporidium Correct Answer: 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 Correct Answer: 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 Correct Answer: 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.
:
vPretest - Stuvia US
, 3
Giardia Correct Answer: 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.
Hard Water Correct Answer: 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) Correct Answer: The highest level
of disinfectant allowed in drinking water. Standards set by the US EPA
Microbial Pathogens Correct Answer: Micro-organisms that cause disease
Safe Drinking Water Act (SDWA) Correct Answer: 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 Correct Answer: 8.34 pounds
Ch 1- The average domestic water usage per person per day is usually
somewhere in the range of Correct Answer: 100-130 gallons
Ch 1 -Probably the most important source of information to use when
implementing changes in process control at a water plant is Correct Answer:
Lab Results
Ch 1 - The most important duty of a water plant operator is to Correct Answer:
Help to protect the health and well-being of the community
:
vPretest - Stuvia US
Class A Water Operator Questions
with 100% Correct Answers
How many Training Hours and experience for a class D Water Operator Correct
Answer: 16 Hours Training and No Experience
How many Training Hours and experience for a class C Water Operator Correct
Answer: 36 Hours Training and 1 year Experience
How many Training Hours and experience for a class B Water Operator Correct
Answer: 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 Correct
Answer: 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 Correct
Answer: 32 Hours and no experience
How many Training Hours and experience for a Class B Lab Operator Correct
Answer: 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 Correct
Answer: 32 hours of B and 1 year experience. ***Must include a Bachelor in
science
:
vPretest - Stuvia US
,2
How many Training Hours and experience for a Class C Distribution Operator
Correct Answer: 36hours and 1 year experience
How many Training Hours and experience for a Distribution Technician Correct
Answer: 8 hours and no training.
Community Water System Correct Answer: A public water supply that has at
least 15 service connections or serves 25 or more persons on a regular basis
Primary Contaminants Correct Answer: Contaminants identifies by the EPA as
harmful to umal health
Maximum Containment Level (MCL) Correct Answer: The level in which
contaminants must not exceed or public notification is required.
Cryptosporidium Correct Answer: 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 Correct Answer: 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 Correct Answer: 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.
:
vPretest - Stuvia US
, 3
Giardia Correct Answer: 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.
Hard Water Correct Answer: 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) Correct Answer: The highest level
of disinfectant allowed in drinking water. Standards set by the US EPA
Microbial Pathogens Correct Answer: Micro-organisms that cause disease
Safe Drinking Water Act (SDWA) Correct Answer: 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 Correct Answer: 8.34 pounds
Ch 1- The average domestic water usage per person per day is usually
somewhere in the range of Correct Answer: 100-130 gallons
Ch 1 -Probably the most important source of information to use when
implementing changes in process control at a water plant is Correct Answer:
Lab Results
Ch 1 - The most important duty of a water plant operator is to Correct Answer:
Help to protect the health and well-being of the community
:
vPretest - Stuvia US
